Page 1 HPE XP7 Fast Snap User Guide Abstract This guide provides information about how to configure and use Fast Snap to store snapshots in an XP7 Storage system. This document is intended for system administrators and Hewlett Packard Enterprise representatives and authorized service providers who install, configure, and operate the XP7 Storage system.
Page 2 Nothing herein should be construed as constituting an additional warranty. Hewlett Packard Enterprise shall not be liable for technical or editorial errors or omissions contained herein.
Page 3: Table Of Contents
Contents Overview of Fast Snap................8 About Fast Snap........................... 8 Workflow for storing Fast Snap snapshot data..............8 Components of Fast Snap......................9 Fast Snap pairs........................ 11 Volume components......................12 Snapshot tree components ..................... 13 Maximum number of Fast Snap pairs................13 Consistency and snapshot groups................... 13 Snapshot Clones ......................14 Snapshot trees and cascaded pairs ................14 Creating cascaded pairs....................
Page 4 Fast Snap planning requirements....................63 Calculating the number of Fast Snap pairs based on pair tables........64 Calculating Fast Snap pairs based on the snapshot estimated manageable capacity..64 Calculating Fast Snap pairs based on cache management devices........65 Calculating the number of cache management devices..........66 Calculating the Fast Snap pair capacity for THP pools............66 Fast Snap cache management device requirements............68 Calculating and assigning pool capacity................
Page 5 Assigning MU numbers to deleted snapshot data..............127 Deleting snapshot data......................128 Deleting Fast Snap pairs......................129 Accelerating the Fast Snap pair deletion process............130 Removing Fast Snap snapshot groups................130 Assigning secondary volumes to Fast Snap pair snapshot data..........131 Assigning secondary volumes to snapshot data after creating new Fast Snap pairs..131 Assigning secondary volumes to snapshot data of existing Fast Snap pairs....132 Releasing assignment of secondary volumes from Fast Snap pair snapshot data....
Page 6 Assign Secondary Volumes wizard...................292 Assign Secondary Volumes window................293 Assign Secondary Volumes confirmation window............299 Remove Secondary Volumes window..................305 Websites....................308 Support and other resources.............309 Accessing Hewlett Packard Enterprise Support............... 309 Accessing updates........................309 Customer self repair........................310 Remote support........................310 Warranty information.........................310 Regulatory information......................311...
Page 7 Documentation feedback......................311 Contents...
Page 8: Overview Of Fast Snap
Overview of Fast Snap About Fast Snap To store snapshot data, you create a pair with a logical volume functioning as the P-VOL, and a virtual volume as the S-VOL. A pair created to store snapshot data is referred to as a snapshot pair. A snapshot pair displays showing the snapshot attribute.
Page 9: Components Of Fast Snap
4. The host updates the primary volume again. 5. Split the snapshot pairs. The updated data in the primary volume is stored as snapshot data (Snapshot data B in the following figure). In the event of data corruption, you can recover using this snapshot data.
Page 10 You can run RAID Manager commands to perform Fast Snap tasks (see Pair tasks using RAID Manager or Remote Web Console on page 194). When using RAID Manager, run commands directly from the host instead of using a management client. Overview of Fast Snap...
Page 11: Fast Snap Pairs
Fast Snap pairs Type Volume that can Volume that can Cascade Description be used as P-VOL be used as S-VOL capability Pairs with the Logical volume Fast Snap V-VOL Pairs used to store snapshot attribute (LDEV) (V-VOL of which snapshot data. provisioning type is The logical volume Snapshot in RWC,...
Page 12: Volume Components
Type Volume that can Volume that can Cascade Description be used as P-VOL be used as S-VOL capability The logical volume of the P-VOL contains THP V- VOLs (V-VOL of which provisioning type is Thin Provisioning in RWC, or V-VOL created by the raidcom add ldev -pool...
Page 13: Snapshot Tree Components
Data consistency Guaranteed Not guaranteed Software application from which you can define pairs FS, BC, and BC MF For more information about defining Cnt Ac-S pairs in consistency groups, see the HPE XP7 Continuous Access Synchronous User Guide. Snapshot tree components...
Page 14: Snapshot Clones
For more information about defining Cnt Ac-J pairs in consistency groups, see the HPE XP7 Continuous Access Journal User Guide. For more information about defining BC pairs in consistency groups, see the HPE XP7 Business Copy User Guide. More information...
Page 15: Creating Cascaded Pairs
Creating cascaded pairs Fast Snap S-VOLs can be paired with secondary layer S-VOLs. First layer (L1) S-VOLs can also be paired with secondary layer (L2) S-VOLs. A maximum of 64 layers can be created, and a maximum of 1,024 S-VOLs can be used for a P-VOL. In this case, the snapshot tree is cascaded. L2 to L64 pairs are called cascaded pairs.
Page 16 • The volume in the top layer of the snapshot tree (P-VOL of the L1 pair) is the root volume. • Volumes between the root and leaf volumes are node volumes. • Volumes in the bottom layer of the snapshot tree are leaf volumes. To create a Fast Snap pair that can be used in a cascaded snapshot tree, open the Create FS Pairs window and select Enable for Cascade in RWC or use the raidcom add snapshot -snap_mode cascade command in RAID Manager.
Page 17: Volume Differences Between Fast Snap And Business Copy
A snapshot tree can be configured by combining snapshot and cloned pairs. As shown in the following figure, you can also cascade pairs that are being cloned, but you can only clone up to three pairs concurrently. The following figure shows an example of when pairs that are being cloned are also cascaded.
Page 18 Item Fast Snap Business Copy Initial copy operation Required. Not required. Volumes can be copied faster. Number of S-VOLs per P-VOL Up to 1,024 Up to 9 Capacity efficiency High. Only differential data is Low. The entire P-VOL is copied. copied from the P-VOL.
Page 19 Business Copy S-VOLs retain all P-VOL data. Therefore, if a failure occurs in the P-VOL, data in the S- VOLs is not lost. The following figure explains the relation of data when a failure occurs in a pool. Fast Snap S-VOLs reference data in the pool. If the pool cannot be used because a failure occurs in the pool or the pool becomes full, data in all S-VOLs that use the pool is lost.
Page 20: Xp7 Storage Software Applications For Fast Snap
For Business Copy, each S-VOL independently retains data. Therefore, only data in the failed S-VOL is affected. In addition, if a failure occurs in an S-VOL during restoration, data in the P-VOL which is being restored cannot be used. XP7 Storage software applications for Fast Snap Fast Snap Use the Fast Snap software on the Remote Web Console (RWC) computer that is connected to the service processor (SVP) by means of the TCP/IP local area network (LAN).
Page 21: How Fast Snap Works
How Fast Snap works How Fast Snap uses pools and pool volumes Fast Snap stores snapshot data in THP pools (Pool Type: Thin Provisioning) or Fast Snap pools (Pool Type: Fast Snap). Unless they are defined otherwise, both THP pools and Fast Snap pools are referred to as "pools".
Page 22: How Fast Snap Uses V-Vols
The usage level among parity groups is automatically rebalanced when expanding or shrinking pool capacity operations are in progress. If you expand the pool capacity, Thin Provisioning moves data to the added space on a per-page basis. When the data is moved, the usage rate among parity groups of the pool-VOLs is rebalanced. Host I/O performance may decrease when data is moved.
Page 23: Using Snapshot Pairs (Not Cascaded)
You can check the status of volumes in the Local Replication window and the View Pair Properties window in RWC, or by using the raidcom get snapshot command in RAID Manager. More information Creating Fast Snap pairs using Remote Web Console on page 114 Viewing pair properties on page 140 Using snapshot pairs (not cascaded) Data in the P-VOL is backed up one time every day.
Page 24 Overview of Fast Snap...
Page 25 Distributing updated data in the P-VOL to specified users When you update the P-VOL and want to give it only to the specified users (S-VOLs 5 and 6 in the figure), do the following: 1. Create cascaded pairs, and distribute data in the P-VOL. Assign users to whom you want to distribute the updated data, and users to whom you do not want to distribute the updated data to separate node volumes.
Page 26: Workflow For Creating Groups And Storing Snapshot Data Using Raid Manager
Creating a new distributor with cloned pairs 1. Create cascaded pairs and distribute data in the P-VOL. Assign the clone attribute to the volume to be a new distributor (S-VOL 3 in the figure). 2. Clone pairs. By cloning pairs, S-VOL 3 and S-VOL 1 become unpaired volumes (THP V-VOLs) in the same status, and S-VOL 3 can be a new distributor.
Page 27 Use the following workflow to create a snapshot group and store volume snapshot data in the group: 1. Split the pair and store snapshot data for a group. To do this using RAID Manager, run the following raidcom command: raidcom modify snapshot -snapshot_data create 2.
Page 28: Methods Of Storing Snapshot Data
Removing Fast Snap snapshot groups on page 130 Pair tasks using RAID Manager or Remote Web Console on page 194 Methods of storing snapshot data In the CAW method, writing the P-VOL snapshot data changes the status to “write completion”. In the COW method, storing the P-VOL snapshot data changes the status to "write completion".
Page 29: Fast Snap Pair Restoration
Fast Snap pair restoration Overwriting snapshot data to P-VOLs is also referred to as restoring Fast Snap pairs. If data is written to a secondary volume, this particular data (not snapshot data) is overwritten to the primary volume when the Fast Snap pair is restored. If a problem occurs in P-VOL data due to a failure, restoring the pair restores the P-VOL data saved when the snapshot data was stored.
Page 30 The following workflow describes the Fast Snap pair status changes: 1. You choose two volumes that are in SMPL status and are not in use as a Fast Snap pair. 2. You create a pair. If the primary volume has not previously been paired with any secondary volume, the pair status changes to "COPY"...
Page 31: Fast Snap Host Access And Pair Status
PSUE is determined by the setting in "Suspend FS pairs when the deletion threshold is exceeded" in RWC, or by the setting specified by using the raidcom modify pool -suspend_tipair <yes|no> command in RAID Manager. For details, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 32 "Suspend FS pairs when the deletion threshold is exceeded" in RWC, or by the setting specified by using the raidcom modify pool -suspend_tipair <yes|no> command in RAID Manager. For details, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 33: Copy Threshold Option And Host Server I/O Performance For Fast Snap
• Auto LUN V2 For more information about enabling the copy threshold option, call HPE technical support. For more information about Compatible FlashCopy, see the HPE XP7 for Compatible FlashCopy Mirroring User Guide. More information Fast Snap pair restoration on page 29...
Page 34 • Data Retention • Auto LUN V2 • Business Copy (BC) • Continuous Access Synchronous (Cnt Ac-S) • Continuous Access Journal (Cnt Ac-J) • High Availability (HA) The following table shows when you can share Fast Snap pair volumes with other software application volumes.
Page 35: Sharing Fast Snap Volumes That Have Data Retention Access Attributes
Software application volume type Used as an FS P-VOL Used as an FS S-VOL 2, 5, 6 Zero Read Capacity volume 2, 5, 6 Invisible volume THP V-VOL V-VOL with capacity saving enabled Deduplication system data volume 1. If you use RWC to share the volume with other software applications, the pair status determines whether you can share the volume.
Page 36 Volume access attributes specified for the FS pair FS pair task P-VOL S-VOL Create, split, Resync Delete suspend, (Reverse Resync pair Copy) (Normal Copy) Read/Write Read/Write Read Only, Protect, S-VOL Disable Read Only, Protect, S-VOL Read/Write Disable Read Only, Protect, S-VOL Disable Reverse Copy does not copy S-VOL access attributes to P-VOLs (see Pair resynchronization methods).
Page 37 Pool-VOL setting Volume access attributes specified by FS Read/Write Read Only Protect S-VOL Disable NOTE: Performing a Fast Snap task does not change the volume access attributes. Required Fast Snap pair status when using Data Retention to assign access attributes to some volumes The following table shows the Fast Snap pair status that is required to use Data Retention to assign access attributes to some Fast Snap P-VOLs and S-VOLs when also using RWC to assign Data...
Page 38: Sharing Fast Snap Volumes With Auto Lun
• Use Fast Snap pair volumes or pool-VOLs as volumes reserved for Auto LUN V2. For more information about the migration plan status and Auto LUN tasks, see the HPE XP7 Auto LUN User Guide. Sharing Fast Snap volumes with Business Copy...
Page 39 FS task BC pair status COPY(PD PAIR COPY(SP PSUS(SP PSUS COPY(RS COPY(RS PSUE )/COPY )/COPY )/PSUS )/COPY -R)/RCPY Create pair Store snapshot data Restore pair Delete snapshot data Release pair Legend: Yes: You can perform the task. No: You cannot perform the task (the command is rejected). The following table lists the Fast Snap tasks you can perform when sharing a Fast Snap P-VOL with a Business Copy S-VOL.
Page 40 Fast Snap S-VOLs use the data in the P-VOL. You cannot Quick Restore in Business Copy. For more information about Business Copy tasks and pair statuses, see the HPE XP7 Business Copy User Guide.
Page 41: Sharing Fast Snap Volumes With Continuous Access Synchronous And Continuous Access Journal
CAUTION: Fast Snap uses MU numbers 0 to 1,023, and they are assigned in the order of 3 to 1,023, followed by 0 to 2. Business Copy uses MU numbers 0 to 2. Fast Snap cannot use the MU numbers 0 to 2 if you want to share Fast Snap volumes with Business Copy. To share Fast Snap volumes with Business Copy if Fast Snap is using the MU numbers 0 to 2: 1.
Page 42 The following table lists the Continuous Access Synchronous/Continuous Access Journal tasks you can perform when the Fast Snap P-VOL is shared with a Continuous Access Synchronous or Continuous Access Journal P-VOL. Cnt Ac-S/Cnt Ac-J task FS status COPY PAIR, PFUL PSUS, PFUS RCPY PSUE...
Page 43 • Pair 1 is a Continuous Access Synchronous pair. • Pair 2 is a Continuous Access Journal pair. • Pair 3 is a Continuous Access Journal pair for delta resync. • Pairs 4, 5, and 6 are Fast Snap pairs. You must create 3DC multitarget and delta resync pairs (pairs 1, 2, and 3) before creating pairs 5 and 6, but pair 4 can be created at any time.
Page 44: Sharing Fast Snap Volumes With High Availability
Snapshot consistency cannot be guaranteed if you store snapshot data without stopping I/O to the volume. For more information about HA, see the HPE XP7 High Availability User Guide. The following table lists the Fast Snap tasks you can perform when the P-VOL is shared with an HA P- VOL.
Page 45 HA status FS task mode Create Store Restore Delete Delete pair pair snapshot pair snapshot data data SSUS Block PSUE Block SSWS Local Storage system configuration with Fast Snap and HA When you create a Fast Snap pair using a volume from an HA pair, the server recognizes the HA P-VOL and S-VOL as a single volume.
Page 46 The following figure shows a supported storage system configuration with a Fast Snap pair using an HA S-VOL. Overview of Fast Snap...
Page 47 The following figure shows a supported storage system configuration with Fast Snap pairs using an HA P- VOL and S-VOL. Overview of Fast Snap...
Page 48 Unsupported configuration You cannot create an HA pair using Fast Snap volumes that are already being used as an HA P-VOL and S-VOL. The following figure shows this unsupported storage system configuration. Overview of Fast Snap...
Page 49 Consistency group configuration with Fast Snap and HA Pairs in a Fast Snap consistency group must be in the same storage system. Therefore, if an HA P-VOL and S-VOL are each used in Fast Snap pairs, the Fast Snap pairs cannot be registered to the same consistency group.
Page 50 Unsupported configuration The following figure shows an unsupported consistency group configuration. Overview of Fast Snap...
Page 51 Snapshot group configuration with Fast Snap and HA Pairs in a Fast Snap snapshot group must be in the same storage system. Therefore, if an HA P-VOL and S-VOL are each used in Fast Snap pairs, the Fast Snap pairs cannot be registered to the same snapshot group.
Page 52 Unsupported configuration The following figure shows an unsupported snapshot group configuration. Overview of Fast Snap...
Page 53: Sharing Fast Snap Volumes With Thin Provisioning And Thin Provisioning Mf In A Single Storage System
Before creating or resynchronizing a Fast Snap pair, make sure that the available capacity in the copy destination volume is greater than the used capacity in the copy origination volume. For details, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 54: Sharing Fast Snap Volumes With Resource Partition
905 to OFF and try again. • You can use a maximum size Thin Provisioning volume as a Fast Snap P-VOL or S-VOL. For information about the maximum size for Thin Provisioning volumes, see the HPE XP7 Provisioning for Open Systems User Guide. More information...
Page 55: Fast Snap System And Planning Requirements
2. Not including the volumes of pools which are not in use by Fast Snap pairs. For more information about licenses, see the HPE XP7 Remote Web Console User Guide for your storage system. Fast Snap system and planning requirements...
Page 56: Fast Snap Shared Memory Requirements
Pool-VOLs: Pool volumes that make up Fast Snap pools. NOTE: The term "Pool VOLs" refers to Fast Snap pool volumes. For information about THP pool volumes, see the HPE XP7 Provisioning for Open Systems User Guide. The following table lists the requirements for Fast Snap P-VOLs.
Page 57 Item Requirement Volume type Logical volumes (LDEVs). You cannot specify the following volumes as FS P-VOLs: • Pool-VOLs • FS S-VOLs For more information about creating pairs using other software applications, see Sharing Thin Image volumes with other software applications. Emulation type OPEN-V Volume limit...
Page 58 Item Requirement Maximum number of volumes 32,768 For more information about the maximum number of FS pairs, see Thin Image planning requirements. Path definitions Required. (Not required for cascaded pairs and pairs with the clone attribute) The following table lists the requirements for Fast Snap pool-VOLs. Fast Snap system and planning requirements...
Page 59 Item Requirement Volume type Logical volumes (LDEVs). To maintain performance levels, use the following configurations: • Place normal volumes and pool-VOLs in separate parity groups (see Thin Image licensed capacity requirements). • Ensure that pool-VOLs consist of LDEVs from more than one parity group.
Page 60: Fast Snap Data Pool Requirements
Define only needed paths to a volume so that you can specify the volume as a pool-VOL. Fast Snap data pool requirements The following table lists the requirements for Fast Snap data pools. For information about THP pools, see the HPE XP7 Provisioning for Open Systems User Guide. Item Requirement Pool capacity Calculate the pool capacity (see Calculating and assigning pool capacity on page 69).
Page 61: Fast Snap Consistency Group Requirements
HPE XP7 Remote Web Console User Guide. • About SNMP traps, see the HPE XP7 SNMP Agent User Guide. Fast Snap consistency group requirements The attributes of Fast Snap consistency groups, such as the pair limit and pair type, have usage requirements.
Page 62 Item Requirement Consistency group ID Value: 0 to 2,047 With BC, BC MF, and FS, you can create up to 2,048 consistency groups in a storage system. Manual assignment of a consistency group ID to an FS pair using the paircreate command: Specify a consistency group ID from 0 to 255.
Page 63: Fast Snap Snapshot Group Requirements
• Fast Snap pairs that share P-VOLs or are in higher and lower layers of a snapshot tree cannot be defined in the same consistency group. If they are defined in the same consistency group, the raidcom add snapshot command is rejected. •...
Page 64: Calculating The Number Of Fast Snap Pairs Based On Pair Tables
• The number of Fast Snap pairs that you can create based on the number of available pair tables. • The snapshot estimated manageable capacity. • The number of cache management devices that you must make available. The smallest of the three calculations is the maximum number of Fast Snap pairs that you can create in the storage system.
Page 65: Calculating Fast Snap Pairs Based On Cache Management Devices
Calculate the number of FS pairs that you can create using the following formulas, where SM refers to shared memory: Number of FS pairs that you can create = Snapshot estimated manageable capacity / Snapshot management capacity in a P-VOL Snapshot estimated manageable capacity in a P-VOL [GB] = (P-VOL capacity of FS pairs [TB] / 2.6) * 3,024 + (168 * 2 (consumed shared memory [GB])) More information...
Page 66: Calculating The Number Of Cache Management Devices
Calculating the Fast Snap pair capacity for THP pools When creating a THP pool, you can set the maximum reserved V-VOL capacity against the pool capacity. For details about the maximum reserved capacity, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 67 If a pair or snapshot data is deleted, allocated pages are not released. As a result, if you delete pairs or snapshot data, the FS pair capacity is not decreased. To decrease the FS pair capacity by releasing allocated pages, you must delete all FS pairs and snapshot data created in the applicable snapshot tree. The following example illustrates how the FS pair capacity is calculated.
Page 68: Fast Snap Cache Management Device Requirements
Fast Snap cache management device requirements The following table shows the cache management device requirements for performing Fast Snap tasks. For information about THP tasks, see the HPE XP7 Provisioning for Open Systems User Guide. Task Number of cache management devices required Initially create an FS pool.
Page 69: Calculating And Assigning Pool Capacity
Task Number of cache management devices required Create a P-VOL. Initially create an FS pair for a volume. 4,097 The number of cache management devices that can be used in a system is 65,280. More information Calculating the number of Fast Snap pairs based on pair tables on page 64 Calculating Fast Snap pairs based on the snapshot estimated manageable capacity on page 64 Calculating Fast Snap pairs based on cache management devices on page 65 Calculating the number of cache management devices on page 66...
Page 70 floor( ): Truncates the value calculated from the formula in parentheses after the decimal point. Estimate pool-VOL capacity in multiples of 42 MB. Specifying a pool-VOL capacity in other multiples less than 42 MB truncates the fraction. If you install THP/Smart/FS Extension in the shared memory, the available pool capacity per P-VOL is 768 TB, and the total capacity of all pools is 12.3 PB.
Page 71: External Storage And External Volumes Used As Pool-Vols
You must restore blocked pools. For more information about external storage systems and disaster recovery methods for external volumes, see the HPE XP7 External Storage for Open and Mainframe Systems User Guide. More information...
Page 72: Pair Operations When Pairs Are Cascaded
• Creating pairs. • Restoring pairs. • Deleting snapshot data and deleting pairs. When you execute additional pair task operations above these limits, the tasks are processed in the order requested. More information Calculating the number of Fast Snap pairs based on pair tables on page 64 Calculating Fast Snap pairs based on the snapshot estimated manageable capacity on page 64 Calculating Fast Snap pairs based on cache management devices on page 65 Calculating the number of cache management devices on page 66...
Page 73 Pair type Pair A Operation for pair B status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete SMPL(PD With the COPY(PD clone attribute PAIR PSUS(SP PSUE SMPL(PD Y: Operation successful. YN: Operation not performed, process terminated.
Page 74 Pair Type Pair A Operation for pair B status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete With the COPY(PD clone attribute PAIR PSUS(SP PSUE SMPL(PD Y: Operation successful. YN: Operation not performed, process terminated.
Page 75 Pair Type Pair A Operation for pair A status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete PSUS(SP PSUE SMPL(PD Y: Operation successful. YN: Operation not performed, process terminated. N: Process terminated abnormally.
Page 76 Pair Type Pair A Operation for pair B status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete SMPL(PD Y: Operation successful. N: Process terminated abnormally. The following table explains operations of cascaded pair A when pair B has the clone attribute, and its pair status is COPY(PD).
Page 77 The following table explains operations of cascaded pair B when pair B has the snapshot attribute and its pair status is PAIR. Pair type Pair A Operation for pair B status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common...
Page 78 Pair type Pair A Operation for pair A status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete With the COPY(PD snapshot attribute PAIR PSUS COPY(RS COPY(RS PSUE SMPL(PD With the COPY(PD clone...
Page 79 Pair type Pair A Operation for pair B status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete PSUS COPY(RS COPY(RS PSUE SMPL(PD With the COPY(PD clone attribute PAIR PSUS(SP PSUE SMPL(PD...
Page 80 Pair type Pair A Operation for pair A status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync Restore Create Split Delete COPY(RS PSUE SMPL(PD With the COPY(PD clone attribute PAIR PSUS(SP PSUE SMPL(PD Y: Operation successful.
Page 81 Pair Pair A Pair B Operation for pair B type status status Pair with snapshot attribute Pair with clone Snapsh attribute ot / clone attribute commo Create Split Resync Restore Create Split Delete PSUS PSUS(S With the PSUS(S PSUS(S clone attribute PSUS(S PSUE...
Page 82 Pair Pair A Pair B Operation for pair A type status status Pair with snapshot attribute Pair with clone Snapsh attribute ot / clone attribute commo Create Split Resync Restore Create Split Delete PSUS SMPL(P PSUS PSUS(S With the PSUS(S PSUS(S clone attribute...
Page 83: Pair Operations When Pairs Are Not Cascaded
Pair operations when pairs are not cascaded The following table explains pair operations according to the pair status. Pair type Pair A Operation for pair A status Pair with snapshot attribute Pair with clone Snapshot attribute / clone attribute common Create Split Resync...
Page 84: Pair Operations When A P-Vol Is Shared By Multiple S-Vols
Pair operations when pairs are cascaded on page 72 Pair operations when a P-VOL is shared by multiple S-VOLs on page 84 Data recovery and backup differences between Fast Snap and Business Copy on page 85 Fast Snap cache management device requirements on page 68 Pair operations when a P-VOL is shared by multiple S-VOLs The following table explains pair operations according to the pair status.
Page 85: Data Recovery And Backup Differences Between Fast Snap And Business Copy
External Storage and external volumes used as pool-VOLs on page 71 Simultaneous processing of multiple Fast Snap pair tasks on page 71 Pair operations when pairs are cascaded on page 72 Pair operations when pairs are not cascaded on page 83 Data recovery and backup differences between Fast Snap and Business Copy on page 85 Fast Snap cache management device requirements on page 68 Data recovery and backup differences between Fast Snap and Business...
Page 86: Removing Fast Snap
Use FS to minimize P-VOL logical failures. More information Calculating the number of Fast Snap pairs based on pair tables on page 64 Calculating Fast Snap pairs based on the snapshot estimated manageable capacity on page 64 Calculating Fast Snap pairs based on cache management devices on page 65 Calculating the number of cache management devices on page 66 Calculating the Fast Snap pair capacity for THP pools on page 66 Calculating and assigning pool capacity on page 69...
Page 87 Procedure 1. Delete all Fast Snap pairs. 2. Delete all FS pools and all THP pools that contain FS pairs. 3. Disable or remove the Fast Snap license. For details about disabling and removing licenses, see the System Administrator Guide for your storage system. More information Deleting Fast Snap pairs on page 129 Deleting pools on page 170...
Page 88: Configuring Fast Snap
Configuring Fast Snap Prerequisites for configuring Fast Snap Before you perform Fast Snap configuration tasks, complete the following tasks: • Install a sufficient amount of shared memory. For more information about installing shared memory, contact HPE technical support. • Create a V-VOL management area in the shared memory. This area is automatically created when you install additional shared memory.
Page 89: Workflow For Creating And Managing Fast Snap Pairs
Fast Snap pair is already being restored, another Fast Snap pair might not be restored. For details about operations and statuses for Fast Snap pairs, see How Fast Snap pair status changes on page 29. For details about how to create THP pools, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 90 NOTE: There are limitations to adding external and internal volumes to data pools. For more information about these limitations, see the requirements for Fast Snap pool-VOLs listed in Fast Snap volume requirements on page 56. Prerequisites You must have the Storage Administrator (Provisioning) role. In RAID Manager, use the raidcom add snap_pool command.
Page 91 Drive Type/RPM: Select your pool-VOL’s data drive type and RPM. Select External Storage when you use external volumes (for FS pool-vols). RAID Level: Select your pool-VOL’s RAID level. If you selected External Storage as the Drive Type/RPM, a hyphen (-) is displayed for this item and this item is unavailable. Default: Mixable Required: Yes •...
Page 92: Selecting Pool Volumes
5. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ; * ? " < > | 6. If you want to monitor the task after submitting it, select Go to tasks window for status. 7.
Page 93 NOTE: Before you add an LDEV belonging to a parity group which has the capacity expansion setting enabled, see the information about whether capacity expansion can be enabled in the HPE XP7 Provisioning for Open Systems User Guide.
Page 94: Pool Creation And Data Drive Type Priority
NOTE: Note the following when you add an external volume: • External volumes with cache mode enabled and external volumes with cache mode disabled cannot be contained in the same pool. • External volumes with cache mode disabled and internal volumes cannot be contained in the same pool.
Page 95: Workflow For Registering Virtual Volumes
Workflow for registering virtual volumes 1. (Optional) Edit the SSID of the V-VOL you want to register to the pool-VOL’s paired volume (see Editing the SSID for virtual volumes on page 95). 2. (Optional) Change the V-VOL settings (see Changing V-VOL settings on page 98). 3.
Page 96 In the Create LDEVs window of the Create LDEVs wizard, in the Selected LDEVs table, click Edit SSIDs. In the Edit SSIDs window, in the SSIDs table, existing SSIDs and those to be generated are shown in the list. In the Edit SSIDs window, select the row of the SSID you want to edit, and then click Change SSIDs.
Page 97 In the Change SSIDs window, for Initial SSID, enter the new SSID and click OK. In the Edit SSIDs window, click OK. Click Finish, and then confirm the settings. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ;...
Page 98: Changing V-Vol Settings
If you want to monitor the task after submitting it, select Go to tasks window for status. 10. Click Apply to submit the task. More information Monitoring pool information on page 151 Replication window on page 208 Changing V-VOL settings Prerequisites You must have the Storage Administrator (Provisioning) role.
Page 99 3. In the Create LDEVs window of the Create LDEVs wizard, in the Selected LDEVs table, select an LDEV, and then click Change LDEV Settings. 4. In the Change LDEV Settings window, complete the following items, and then click OK: •...
Page 100: Creating V-Vols For Fast Snap S-Vols
Enter the prefix characters and the initial number for the LDEV. • Initial LDEV ID Enter the LDKC, CU, and LDEV numbers, and the interval. To confirm used LDEVs, click View LDEV IDs. • MP Blade Select the MP blade identifier to which you want to assign the LDEV. To specify an MP blade identifier, select the MP blade ID.
Page 101 2. In the Pools window, in the Pools tab, click Create LDEVs. 3. In the Create LDEVs window of the Create LDEVs wizard, complete or review the following items, and then click Options: • Provisioning Type Confirm that Snapshot is selected. Configuring Fast Snap...
Page 102 Required: Yes • System Type Verify that Open is selected. Required: Yes • Emulation Type Confirm that OPEN-V is selected. Required: Yes • Capacity Compatibility Mode (Offset boundary) Specify if you want to offset the specified LDEV capacity by boundary. Values: ON or OFF Default: OFF •...
Page 103 LDEVs fields must be set. If these items are not set, you cannot click Add. 5. Click Finish, and then confirm the settings. NOTE: To continue setting the LU path, click Next. For more information about setting the LU path, see the HPE XP7 Provisioning for Open Systems User Guide. Configuring Fast Snap...
Page 104 6. (Optional) To change the settings of the V-VOLs, you can complete the following: a. To select a storage system identifier and edit the SSID properties, click Edit SSIDs. b. To change the LDEV settings, click Change LDEV Settings. c. In the Change LDEV Settings window, change the desired settings, and then click OK: d.
Page 105 7. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ; * ? " < > | 8. If you want to monitor the task after submitting it, select Go to tasks window for status. 9.
Page 106 3. In the Create LDEVs window, in the Selected LDEVs table, complete the following: a. Select the check box for the LDEV you want to remove from the registering task, and then click Remove. b. In the warning message that appears, click OK to confirm that you want to remove the selected LDEV.
Page 107 7. (Optional) To open the next task window, click Next. 8. To register the settings to the storage system, click Apply. The LDEV is removed from the registering task. The LDEV is not registered and created. Recognizing devices from the host server NOTE: Do not change the volume of the recognized device by the host server to a V-VOL.
Page 108: Overview Of Using Raid Manager To Run Commands Through In-Band Connections
On the server (including RAID Manager), the emulation type of the V-VOL is shown with a zero (0), such as OPEN-0V. If you create a Fast Snap pair, specify a volume whose emulation type is shown with a zero (0) for the S-VOL, such as OPEN-0V. Overview of using RAID Manager to run commands through in-band connections If you use RAID Manager to run commands through an out-of-band connection, you do not need to...
Page 109 2. In the Replication window, click Edit Options > Local Replication. Configuring Fast Snap...
Page 110 3. In the Edit Local Replica Options window of the Edit Local Replica Options wizard, for System Type, confirm that Open is selected. Default: Open 4. In the BC/FS System Options table, select the system option you want to change, and then click Enable or Disable.
Page 111 5. Click Finish, and then confirm the settings. 6. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ; * ? " < > | 7.
Page 112: Managing Fast Snap Pairs
Managing Fast Snap Pairs Fast Snap pair tasks • Check Fast Snap pair status. • Create Fast Snap pairs. • Split Fast Snap pairs to store snapshot data. • Change the Fast Snap pair status, if the pair is defined in a consistency group. •...
Page 113: Workflow For Creating And Managing Fast Snap Pairs
Procedure 1. Wait until the configuration information has completed processing. 2. If the numbers remain different, click File > Refresh All. Workflow for creating and managing Fast Snap pairs 1. Create the data pool (see Creating Fast Snap data pools on page 89). 2.
Page 114: Creating Fast Snap Pairs Using Remote Web Console
Creating Fast Snap pairs using RWC involves the following steps. 1. Select the P-VOL. 2. Assign the S-VOL to snapshot data. 3. Confirm that you want to create the pair. More information Creating Fast Snap pairs using Remote Web Console on page 114 Creating Fast Snap pairs using Remote Web Console When you create a pair, you specify the pool to be used.
Page 115 To view the capacity in blocks, click Options > Capacity Unit > block in the Logical Devices window. • If you select a P-VOL that you are already using as the P-VOL for another Fast Snap pair, you must specify the same pool for both pairs. For example, if you specify three S-VOLs for one P-VOL, specify the same pool for the three Fast Snap pairs.
Page 116 12. For Snapshot Group, select either Create New to assign the pair to a new snapshot group, or Use Existing to assign the pair to an existing snapshot group. When you create a Fast Snap pair, you must assign it to a snapshot group. Complete one of the following: •...
Page 117: Selecting A Pool As Your Primary Volume
Selecting a pool as your primary volume Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication. 2. In the Local Replication window, select a P-VOL in the FS Root Volumes tab or a snapshot group in the Snapshot Groups tab, and then click Create FS Pairs.
Page 118: Example Of Creating Complex Fast Snap Pairs
4. In the Select Pool window, from the Available Pools table, select the pool you want to add, and then click OK. The selected pool is displayed in Select Pool on the Create FS Pairs window. Example of creating complex Fast Snap pairs A complex Fast Snap pair is a pair where the P-VOL and S-VOL are not connected one to one.
Page 119: Pair Operations For Each Consistency Group
18. Click Next. 19. Select three secondary volumes in the Assign Secondary Volumes window, and then click Set. Pair operations for each consistency group To use pairs in a consistency group, use RAID Manager. Adding Fast Snap pairs to snapshot or consistency groups using RAID Manager NOTE: If the host is down, the RAID Manager command might be rejected and the pair not defined in the group.
Page 120: Splitting Fast Snap Pairs To Store Snapshot Data
For more information about storing snapshot data by splitting pairs, see Splitting Fast Snap pairs to store snapshot data on page 120. • Split the Fast Snap pair within the consistency group using consistency group pair-split. Complete one of the following: ◦...
Page 121: Splitting Fast Snap Pairs To Store Snapshot Data Using Raid Manager
More information Resynchronizing Fast Snap pairs on page 127 Split Pairs wizard on page 269 Splitting Fast Snap pairs to store snapshot data using RAID Manager To specify more than one consistency group, define the same number of groups using the configuration definition file for RAID Manager.
Page 122: Using Consistency Group Pair-Split With Shared Volumes
More information Workflow for defining Fast Snap pairs and defining them in snapshot or consistency groups using Remote Web Console on page 119 Notes on storing snapshot data, and on cloning pairs on page 207 Using consistency group pair-split with shared volumes The following figures illustrate these configurations.
Page 123 The following table explains when you can use consistency group pair-split with shared volumes. FS P-VOL used as Pair status Can you use consistency group pair-split? Cnt Ac-J S-VOL COPY PAIR PSUS Cnt Ac-S S-VOL COPY PAIR PSUS BC S-VOL COPY PAIR COPY(SP)
Page 124: Restoring Fast Snap Pairs
• You are sharing a Fast Snap P-VOL with a Continuous Access Journal S-VOL and they do not share the same journal. For more information about Continuous Access Journal, see the HPE XP7 Continuous Access Journal User Guide. More information...
Page 125 For Fast Snap pairs where the cascade attribute is enabled, the information displayed in Synchronization Rate (%) of the View Pair Synchronization Rate window, or the information displayed by the raidcom get snapshot command varies depending on the pair status. For details, see View Pair Synchronization Rate window on page 227.
Page 126: Failure During Fast Snap Pair Restore
Failure during Fast Snap pair restore During a failure, the storage system does the following: • Blocks and suspends the Fast Snap pair ("PSUE" status), including pairs that have snapshot data in the pool. • Writes data to the Fast Snap pair volumes. •...
Page 127: Resynchronizing Fast Snap Pairs
Reverse resynchronization You can use the Reverse Copy (Secondary > Primary) method to restore pairs. This method performs a full restoration of P-VOL data from the S-VOL. Resynchronizing Fast Snap pairs Resynchronizing pairs does the following: • Updates the S-VOL so that it is again paired with the P-VOL. •...
Page 128: Deleting Snapshot Data
Procedure 1. Resynchronize the pair using forward resynchronization. 2. Store the data for the Fast Snap pair. More information Storing snapshot data or cloning pairs on page 119 Resynchronizing Fast Snap pairs on page 127 Deleting snapshot data After writing data to a Fast Snap pair volume, if the capacity of the snapshot data exceeds the pool capacity, the Fast Snap pair changes to the PSUE status (indicating a failure occurred).
Page 129: Deleting Fast Snap Pairs
Deleting Fast Snap pairs When you delete a pair, the P-VOL and the S-VOL change to SMPL(PD) and they are unpaired. When volumes are unpaired, they are not displayed in the main window. After the deletion, you can use the unpaired volumes in other pairs.
Page 130: Accelerating The Fast Snap Pair Deletion Process
Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication. 2. In the Local Replication window, select a P-VOL in the FS Root Volumes tab or a snapshot group in the Snapshot Groups tab.
Page 131: Assigning Secondary Volumes To Fast Snap Pair Snapshot Data
Procedure Delete all of the Fast Snap pairs that are assigned to the snapshot group. Assigning secondary volumes to Fast Snap pair snapshot data You can assign secondary volumes to Fast Snap snapshot data. Assigning secondary volumes to snapshot data after creating new Fast Snap pairs NOTE: If the amount of snapshot data in selected P-VOLs or the total number of pairs in selected snapshot groups exceeds 37,768, an error message appears when attempting to perform pair tasks.
Page 132: Assigning Secondary Volumes To Snapshot Data Of Existing Fast Snap Pairs
12. Click OK. 13. For Snapshot Group, select either Create New to assign the pair to a new snapshot group, or Use Existing to assign the pair to an existing snapshot group. When you create a Fast Snap pair, you must assign it to a snapshot group.
Page 133: Releasing Assignment Of Secondary Volumes From Fast Snap Pair Snapshot Data
Prerequisites • You must have the Storage Administrator (Local Copy) role. • In RAID Manager, use the raidcom mount snapshot command. You can assign an S-VOL to snapshot data of an existing Fast Snap pair. Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.
Page 134: Changing Assignment Of Secondary Volumes To Fast Snap Pair Snapshot Data
Prerequisites • You must have the Storage Administrator (Local Copy Pair Unmap) role. • In RAID Manager, use the raidcom unmount snapshot command. You can release the assignment of S-VOLs from snapshot data of Fast Snap pairs. Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.
Page 135 4. In the FS Pairs window, click More Actions > Assign Secondary Volumes. 5. From the Available LDEVs table, select the LDEV you want to assign as the S-VOL, and then click Set. The selected LDEV is displayed in the Secondary Volumes column of the Selected Pairs table. NOTE: •...
Page 136: Monitoring And Maintaining Fast Snap
Monitoring and maintaining Fast Snap Monitoring pair information Viewing summary replication information From this window you can perform the following tasks: • Open the window from which you can view local replication summary information. • Open the window from which you can set the system options that affect performance in Fast Snap. Procedure 1.
Page 137: Viewing Local Replication Summary Information
• Number of FC MF/FCSE Relationships The number of FC MF and FCSE relationships that are in use. • Number of Differential TablesThe number of differential tables that are in use and the differential table limit in the storage system. This number does not include the number of differential tables that FC MF/FCSE Relationships use.
Page 138 Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication. 2. In the summary section of the Local Replication window, view the following information: Number of Pairs The number of pairs for each local replication software application type. The total number of pairs is shown on the Total line.
Page 139: Viewing The Number Of Pairs
- BC/BC MF/Auto LUN: The number of BC, BC MF, and Auto LUN pair tables in use, and the BC, BC MF, and Auto LUN pair table limit in the storage system. - FS: The number of FS pair tables in use and the FS pair table limit in the storage system. Number of Differential Tables The number of differential tables that are in use and the differential table limit in the storage system.
Page 140: Viewing Pair Properties
3. In the FS Root Volumes tab, view the list of Fast Snap primary volumes. Viewing pair properties Prerequisites • You must have the Storage Administrator (Local Copy) role. • In RAID Manager, use the raidcom get snapshot command. Procedure 1.
Page 141: Fast Snap Pair Status Definitions
3. Click Operate FS Pairs. 4. In the FS Pairs window, select the pair you want to monitor, and then click More Actions > View Pair Properties. More information View Pair Properties window on page 231 Fast Snap pair status definitions For more information about the corresponding RAID Manager pair command results, see RAID Manager pair command results on page 195.
Page 142: Viewing Pair Synchronization Rates
Pair status Description S-VOL access Status shown in RAID Manager PSUS(SP) The pair with the clone attribute is split. The S-VOL accepts Read/write PSUP read/write operations. enabled. Can be mounted. RCPY A Reverse Copy is in progress. The S-VOL does not accept Read/Write RCPY read/write operations...
Page 143: Monitoring Consistency Groups
NOTE: During the Fast Snap pair restoration process, the pair synchronization rate may not be up to date. The task must complete for the rate to be up to date. For the Fast Snap pair where the cascade attribute is enabled, the information displayed in Synchronization Rate (%) of the View Pair Synchronization Rate window varies depending on the pair status.
Page 144 • Local Replication window. For more information about how to view this information on this window, see Viewing local replication summary information. • Consistency Group Properties window. For more information about viewing this information on this window, see Viewing consistency group properties.
Page 145: Viewing The List Of Consistency Groups
Viewing the list of consistency groups You can view the list of consistency groups in RWC. RAID Manager does not have a command to perform this task. Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, expand Replication, and then click Local Replication.
Page 146 3. In the Consistency Groups tab, click the CTG ID for the consistency group for which you want to view properties. 4. In the Consistency Group Properties window, view the following consistency group properties: • CTG IDThe consistency group identification number. •...
Page 147: Viewing Fast Snap Pair Task History
You can review task history, including which tasks you have performed on a pair, in the History window in RWC. You can use audit logs to check the Fast Snap pair task history. For details, see HPE XP7 Audit Log User and Reference Guide.
Page 148 2. In the Replication window, click View History > Local Replication. 3. In the History window, for Copy Type, select FS as the copy type for the pair you selected. For more information about the values for Copy Type, see History window. 4.
Page 149: Fast Snap Task Code Definitions
• Date and TimeThe date and time you performed the task. • LDEV IDThe primary/source volume's LDEV identification number. • Provisioning TypeThe P-VOL’s provisioning type. Values: - Basic: Internal volume - THP: THP V-VOL - External: External volume • Secondary VolumeInformation about the S-VOL. •...
Page 150: Viewing Licensed Capacities
2. View a list of licensed capacity in the summary section of the Replication window. Viewing the number of cache management devices For more information, see the View Management Resource Usage window in the HPE XP7 Provisioning for Open Systems User Guide.
Page 151: Managing Pools
Procedure From the Actions menu, select View Management Resource Usage. Managing pools Monitoring pool information You can monitor pool information in the Primary Volumes tab of the selected pool window. Prerequisites • You must have the Storage Administrator (Provisioning) role. •...
Page 152 2. In the Pools window, in the Pools tab, select the pool name for the pool you want to monitor. Monitoring and maintaining Fast Snap...
Page 153: Viewing Used Pool Capacity
You can view used pool capacity by pool or by the Fast Snap pair's root volume. Viewing used capacity by pool For more information, see the Pools window in the HPE XP7 Provisioning for Open Systems User Guide. Prerequisites •...
Page 154: Viewing Formatted Pool Capacity And Pool Usage Rates
To see this column, add this using the Column Settings window. Viewing used pool capacity by Fast Snap pair's root volume For more information, see the volume tabs on the Pools window in the HPE XP7 Provisioning for Open Systems User Guide.
Page 155: Increasing Pool Capacity
Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, and then click Pools. 2. In the Pools window, in the Pools tab, select the check box for the pool for which you want to view capacity from the list, and then click More Actions >...
Page 156 CAUTION: Moving existing data to the added space on a per-page basis can decrease host I/O performance. NOTE: You can only increase the capacity for one pool at a time. Prerequisites • You must not be currently decreasing the pool capacity. •...
Page 157 3. In the Expand Pool window of the Expand Pool wizard, click Select Pool VOLs. 4. In the Select Pool VOLs window, complete the following, and then click OK: a. (Optional) To filter rows, in the Available Pool Volumes table, select ON in the Filter component. b.
Page 158 NOTE: If you are adding an LDEV belonging to a parity group for which capacity expansion is enabled, see the related section in the Provisioning Guide for your storage system. 5. In the Expand Pool window of the Expand Pool wizard, click Finish, and then confirm the settings. 6.
Page 159: Decreasing Pool Capacity
For more information about formatting LDEVs, see the HPE XP7 Provisioning for Open Systems User Guide. • The pool usage rate has reached the warning threshold (see Editing the data pool warning threshold). • The I/O loads on the storage system are high.
Page 160 • The I/O load to the V-VOL related to the pool must be low. • In RAID Manager, use the raidcom delete pool command. You can decrease the pool capacity for up to eight tasks at the same time. Procedure 1.
Page 161 7. Click Apply to submit the task. The tiers in pools are deleted and the pool capacity is decreased. Stopping the process of decreasing pool capacity For more information about the Stop Shrinking Pools window, see the HPE XP7 Provisioning for Open Systems User Guide. Prerequisites •...
Page 162 Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, and then click Pools. 2. In the Pools tab, click the name of the pool for which you want to stop decreasing capacity. 3. In the Pool Name window, in the Pool Volumes tab, from the list of volumes, select the check box for the pool that contains the pool-VOLs for which you want to stop decreasing pool capacity, and then click Stop Shrinking Pool.
Page 163: Editing The Data Pool Warning Threshold
7. Click Apply to submit the task. Editing the data pool warning threshold For more information about checking alerts and checking the details of a SIM, see the HPE XP7 Remote Web Console User Guide. For more information about SNMP, see the HPE XP7 SNMP Agent User Guide.
Page 164 3. In the Edit Pools window of the Edit Pools wizard, complete the following: Warning Threshold • Enter the data pool warning threshold. • Range: 20% - 95%, in 1% increments. • Default: 80% CAUTION: Excessive pool usage rates (rates over 50%) are rounded down to the closest integer.
Page 165: Editing Pool Names
5. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ; * ? " < > | 6. If you want to monitor the task after submitting it, select Go to tasks window for status. 7.
Page 166 2. In the Pools tab, from the list of pools, select the check box for the pool whose name you want to change, and then click More Actions > Edit Pools. Monitoring and maintaining Fast Snap...
Page 167 3. In the Edit Pools window of the Edit Pools wizard, complete the following items for Pool Name: • Prefix Enter the new alphanumeric characters that precede the pool number. This field is case sensitive. • Initial Number Enter the pool’s new initial number, using 9 digits or fewer. The character limit for both fields together is 32 alphanumeric characters.
Page 168: Workflow For Recovering Blocked Pools
5. Accept the default task name or enter a unique name. You can enter up to 32 letters, numbers, and symbols, except the following: \ / : , ; * ? " < > | 6. If you want to monitor the task after submitting it, select Go to tasks window for status. 7.
Page 169 Recovering blocked pools The pool recovery time depends on pool or V-VOL usage and system workload. Calculate roughly 20 minutes of recovery time for every 100 TB of pool or V-VOL usage. CAUTION: Recover blocked pools for disaster recovery purposes only. Prerequisites •...
Page 170: Workflow For Decreasing Pool Capacity
1. Delete all of the Fast Snap pairs. 2. Delete the pool volumes. 3. (Optional) Erase data from the volume (volume shredding). For more information about volume shredding, see the HPE XP7 Volume Shredder for Open and Mainframe Systems User Guide. More information...
Page 171 For more information about THP V-VOL requirements, see the HPE XP7 Provisioning for Open Systems User Guide. Prerequisites • You must have the Storage Administrator (Provisioning) role. • In RAID Manager, use the raidcom delete pool command. You can delete pools that have a 0% usage rate and that are not assigned for THP V-VOLs.
Page 172: Managing Virtual Volumes
3. In the Delete Pools window of the Delete Pools wizard, click Finish, and then confirm the settings. Click Next if you want to perform volume shredding to erase data from the volume. For details on volume shredding operations, see the HPE XP7 Volume Shredder for Open and Mainframe Systems User Guide.
Page 173 4. In the Virtual Volumes tab, from the list of volumes, select the check boxes for the V-VOLs you want to change, and then click More Actions > Edit LDEVs. 5. In the Edit LDEVs window of the Edit LDEVs wizard, for LDEV Name, enter the prefix and the initial number.
Page 174: Workflow For Deleting V-Vols Specified For Fast Snap S-Vols
2. Delete the V-VOL. More information Deleting Fast Snap pairs on page 129 Deleting virtual volumes For more information about the Delete LDEVs window, see the HPE XP7 Provisioning for Open Systems User Guide. Prerequisites • You must have the Storage Administrator (Provisioning) role.
Page 175: Viewing Snapshot Data Capacity
You can use the Delete LDEVs window to remove virtual volumes. Procedure 1. In the Explorer pane, click Storage Systems, expand the storage system tree, and then click Logical Devices. 2. In the Logical Devices window, from the list of volumes, select the check boxes for the V-VOLs that you want to delete, click More Actions >...
Page 176: Maintaining Pairs During Storage System Maintenance
NUM_LDEV : 1 LDEVs : 640 NUM_PORT : 1 PORTs : CL2-E-0 14 Linux_X86 F_POOLID : NONE VOL_ATTR : CVS : VVOL : QS TIER_Alloc_level : H TIER#1_Alloc_rate : MAX : 50 : MIN : 30 TIER#3_Alloc_rate : MAX : 50 : MIN : 30 Snap_Used_Pool(MB) : 2181 For more information about the raidcom command, see the HPE XP Storage RAID Manager Reference Guide.
Page 177: Definition Of Failure
Power supply and losing data in shared memory You can still use the pool and Fast Snap pairs, because the data is restored to shared memory from SSD after switching the power supply back on. Definition of failure When a failure occurs in a cascade configuration, in addition to the volume in which the failure occurs, the following volumes are also suspended: •...
Page 178: Troubleshooting Fast Snap
Troubleshooting Fast Snap If your site experiences workflow, configuration, or management issues while working with Fast Snap, such as a volume that is blocked, then you can troubleshoot them by referring to the possible problem causes and solution procedures. Overview Types of troubleshooting tasks are categorized as follows: •...
Page 179: Troubleshooting The Source Of Sim Codes
When SNMP is installed for a storage system, an SNMP trap is triggered by each SIM, and is sent to the applicable hosts. For details about SNMP information, see the HPE XP7 SNMP Agent User Guide. For details about SIM reference codes, see the HPE XP7 SNMP Agent User Guide or the HPE XP7 Remote Web Console User Guide.
Page 180 An FS pool is blocked. Solution: Perform Workflow for fixing errors when pool-related SIMs are reported on page 190. For information about troubleshooting THP pools, see the HPE XP7 Provisioning for Open Systems User Guide. The FS pool usage rate of...
Page 181 Problem Causes and solutions You cannot create FS Causes: pairs. • You have reached the maximum amount of cache management devices. • You have not met the prerequisites to create the pair. • The status of the specified volume is not displayed because you are deleting the FS pair.
Page 182 Problem Causes and solutions An error occurred while Cause: A volume is blocked because a failure occurred in the data drive. restoring the pair. Solution: 1. Delete the blocked FS pair (see Deleting Fast Snap pairs on page 129). 2. Contact HPE technical support. A volume is blocked.
Page 183 Wait until the process has completed and then retry the task. • Verify the values for the RWC RMI time-out period. For more information about how to set RMI time-out period, see the HPE XP7 Remote Web Console User Guide. The pair information in the Cause: FS processing may be in progress.
Page 184: Workflow For Correcting Pool-Related Failures (Sim = 601Xxx, 602Xxx, 604Xxx, 605Xxx, And 606Xxx)
Problem Causes and solutions You cannot resynchronize Causes: a suspended FS pair ("PSUE" status). • The FS pair cannot be defined because the pair entered the PSUE status while being created. • All the FS pairs under the P-VOL are in the PSUE status. Solution: 1.
Page 185 Workflow to perform when SIMs related to the pool usage rate were reported The following figure explains how to take action when 601xxx or 602xxx has occurred. Workflow to perform when SIMs related to the pool usage rate were reported...
Page 186 Troubleshooting Fast Snap...
Page 187 Troubleshooting Fast Snap...
Page 188 The pool capacity required for resolving SIMs is calculated as follows: required-capacity = (capacity-used-by-pool / pool-threshold) - pool-capacity-before-expansion When you expand a pool using LDEVs created from parity groups of which capacity expansion is enabled, the total amount of the LDEVs should meet the following conditions: total-capacity-of-LDEVs-to-be-created ≤...
Page 189 *To resolve SIMs, add parity groups to create LDEVs, and then expand the pool. The required physical capacity can be calculated by using the following formula: required-physical-capacity = (physical-capacity-of-pool / pool-threshold) – physical-capacity-of-pool-before-expansion Note the threshold and the deletion rate used for the calculation are expressed as a fraction converted from a percent.
Page 190: Workflow For Fixing Errors When Sims Related To Cache Management Devices Are Reported
For more information about SIM reference codes, contact HPE Technical Support. You can view SIMs that occur in the storage system in an RWC window. For more information about checking alerts and the details of a SIM, see the HPE XP7 Remote Web Console User Guide.
Page 191 ID. For details about reference codes of SIMs, contact HPE technical support. You can check the SIMs occurring in storage systems from a Remote Web Console window. For information about the Remote Web Console windows you can use for checking SIMS, see the HPE XP7 Provisioning for Open Systems User Guide.
Page 192: Completing Sims
For more information about checking alerts for SIM reference codes, see the HPE XP7 Remote Web Console User Guide. More information Automatic completion of SIMs on page 192 Manually completing SIMs on page 192 Completing SIMs Completing SIMs means changing the SIM status to "Completed". When the cause of a SIM occurrence is solved, change the SIM status to Completed.
Page 193 The SIMs are completed ("Completed" status). You can confirm whether a SIM has been completed normally by checking the system information and status in RWC. For more information about checking alerts for SIMs, see the HPE XP7 Remote Web Console User Guide. Troubleshooting Fast Snap...
Page 194: Raid Manager Command Reference For Fast Snap
RAID Manager command reference for Fast Snap Pair tasks using RAID Manager or Remote Web Console You can use RAID Manager as well as Remote Web Console (RWC) to perform pair tasks. When you use RAID Manager, perform tasks by running pairxx commands for pair tasks or RAID Manager commands. Use RAID Manager commands to store a minimum of 65 snapshots, clone a minimum of 65 pairs, or use a minimum of 64 MU numbers.
Page 195: Raid Manager Pair Command Results
Pair task RAID Manager command raidcom delete snapshot Assign an S-VOL to raidcom mount snapshot Create FS Pairs wizard snapshot data Assign Secondary Volumes wizard Release the assignment of raidcom unmount snapshot Remove Secondary Volumes an S-VOL to snapshot data window Change the assignment of raidcom replace snapshot...
Page 196: Parameter Ranges For Raid Manager Options
If a RAID Manager command is rejected and ends abnormally and the host is running the HP-UX operating system, sense bytes (SSB) are output to the RAID Manager error log file. Sense bytes indicate the cause of the error. For more information about SSB and error causes, see Troubleshooting with RAID Manager on page 196.
Page 197 SSB2 RAID Manager Cause of error command 9100 All commands You cannot run the command because the user authentication is not performed. 9685 paircreate You cannot create the FS pair because of a shortage of pair tables. 9700 paircreate You cannot create the FS pair because the pool is not available. 9702 paircreate You cannot create the FS pair because you specified a pool ID...
Page 198 SSB2 RAID Manager Cause of error command 9722 paircreate, pairsplit, The command ended abnormally because you specified either of the pairresync, following for the FS P-VOL. pairresync -restore • External volume for which the Data Direct Mapping attribute is enabled. •...
Page 199 SSB2 RAID Manager Cause of error command 9731 pairresync -restore You cannot restore the FS pair because the FS P-VOL and Cnt Ac-S P-VOL share a volume, and the Cnt Ac-S pair is not split ("PSUS" status) or is suspended and blocked (“PSUE” status). 9732 pairresync -restore You cannot restore the FS pair because the FS P-VOL and Cnt Ac-J...
Page 200 SSB2 RAID Manager Cause of error command 9747 paircreate You cannot create the FS pair because you specified a Cnt Ac-S P- VOL as the FS S-VOL. 9748 paircreate You cannot create the FS pair because you specified a Cnt Ac-S S- VOL as the FS S-VOL.
Page 201 SSB2 RAID Manager Cause of error command 9758 All commands The command ended abnormally because you specified an Auto LUN V2 target volume as the FS P-VOL. For more information about using Auto LUN V2, contact HPE Technical Support. 975A All commands The command ended abnormally because you specified a BC P-VOL as the FS S-VOL.
Page 202 SSB2 RAID Manager Cause of error command 9777 paircreate The FS pair cannot be created because the FS P-VOL and a BC S- VOL share the volume, and you specified MU number zero (0) for the FS P-VOL. 977A paircreate, pairsplit The command ended abnormally because the FS P-VOL and a BC P- VOL share the volume, and the BC pair was in the process of resynchronization.
Page 203 SSB2 RAID Manager Cause of error command 978B paircreate You cannot create the FS pair because the consistency group ID you specified is not within range. 9790 paircreate You cannot create the FS pair because you have specified a normal volume for which capacity expansion is enabled as the FS P-VOL.
Page 204 SSB2 RAID Manager Cause of error command 97B6 paircreate You cannot create the FS pair because of one of the following reasons: • You were in the process of creating a new snapshot group but you reached the maximum number of snapshot groups that can be created.
Page 205 SSB2 RAID Manager Cause of error command 97C7 paircreate You cannot create the FS pair because the capacity of cache management devices is insufficient. 97C8 paircreate You cannot create the FS pair because the capacity of the volume you specified as the P-VOL or the S-VOL of the FS pair is more than the supported size.
Page 206: Notes On Using Fast Snap Primary Volumes As Continuous Access Synchronous, Business Copy, Or Continuous Access Journal Pair Volumes
SSB2 RAID Manager Cause of error command 97DA paircreate, mount The command ended abnormally because the T10 PI settings for the snapshot P-VOL and S-VOL did not match. 97DD unmount snapshot/ The command ended abnormally because you specified a pair to replace snapshot which an S-VOL is not assigned.
Page 207 • The Fast Snap primary volume is used as a Continuous Access Journal S-VOL, and you are reaching the Cnt Ac-J journal volume capacity limit. • The Fast Snap license is invalid. • The Fast Snap pair volumes are blocked. •...
Page 208: Fast Snap Gui Windows And Wizards
Fast Snap GUI windows and wizards Replication window Use this window to perform the following tasks: • Viewing replication summary information (see Viewing summary replication information on page 136). • Opening the window from which you can view local replication summary information (see Viewing local replication summary information on page 137).
Page 209 Edit Options > SCP Time Click to open the Edit SCP Time wizard. For more information about the tasks you can perform using this wizard, see the HPE XP7 Continuous Access Synchronous User Guide. Replica LDEVs tab This tab shows only pairs that consist of the P-VOL and S-VOLs (the source and target volumes for FC MF or FCSE) allocated to each user.
Page 210 LDKC, CU and LDEV. Click the ID to open the LDEV Properties window, from which you can view the properties assigned to the selected LDEV. For more information about this window, see the HPE XP7 Provisioning for Open Systems User Guide. LDEV Name The selected LDEV's name.
Page 211: Local Replication Window
* These items are not shown in the table by default. You must add them using the Column Settings window. For more information about how to add items to a table using this window, see the HPE XP7 Remote Web Console User Guide.
Page 212 Item Description Number of Pairs The number of pairs for each local replication software application type. The total number of pairs is shown on the Total line. Number of Consistency Groups The number of consistency groups that have a status other than "Free", and the consistency group limit in your storage system.
Page 213 Item Description Number of Differential Tables The number of differential tables that are in use and the differential table limit in your storage system. Because differential tables are not used for all operations, the number of differential tables does not change when you execute the following operations: •...
Page 214 The following table lists the items on this tab. Fast Snap GUI windows and wizards...
Page 215 Item Description Primary The BC P-VOL information. Volume Values: • LDEV ID The P-VOL's LDEV identification number. Click to open the LDEV Properties window. Use this window to search for P-VOL information. • LDEV Name The P-VOL's LDEV name. • Port ID The port name of the P-VOL LDEV's LUN path.
Page 216 Item Description – Volume for which encryption is enabled – Volume for which encryption is disabled – External volume Note: Data encryption is not ensured in an LDEV with Mixed encryption status. If the LDEV is an external volume or migration volume, a hyphen (-) is displayed. For THP V-VOLs, the pool to which an LDEV belongs is an external volume or blocked.
Page 217 Item Description Status The BC pair status. The following icons and pair statuses are shown: • The BC pair is in the process of being deleted. Status: ◦ BCSMPL(PD) ◦ BC MFDeleting/TRANS • This icon is used for the following: You are copying the pair.
Page 218 BC MFV-Split/SUSPVS • The pair is suspended. Status: ◦ BCPSUE ◦ BC MFSuspend/SUSPER For more information about BC or BC MF pair status, see the HPE XP7 Remote Web Console User Guide. Table Continued Fast Snap GUI windows and wizards...
Page 219 Item Description Secondary BC S-VOL information. Volume Values: • LDEV IDThe S-VOL's LDEV identification number. Click to open the LDEV Properties window. • LDEV NameThe S-VOL's LDEV name. • Port IDThe port name of the S-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
Page 220 Item Description ◦ EnabledEncryption is enabled for the parity group to which the S-VOL's LDEV belongs, or a V-VOL is associated with a pool in which a pool volume has encryption enabled. ◦ DisabledEncryption is disabled for the parity group to which the S-VOL's LDEV belongs, or a V-VOL is associated with a pool in which a pool volume has encryption disabled.
Page 221 * These items are not shown in the table by default. You must add them using the Column Settings window. For more information about how to add items to a table using this window, see the HPE XP7 Remote Web Console User Guide.
Page 222 The following table lists the items on this tab. Item Description LDEV ID The P-VOL's LDEV identification number. Click to open the FS Pairs window. LDEV Name The P-VOL's LDEV name. Port ID The port identification number of the P-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
Page 223 Item Description iSCSI Target Name The P-VOL's iSCSI target name. If the LUN path is not defined, a blank is displayed. LUN ID The LUN identification number of the P-VOL LDEV's LUN path. If the path is not defined, a blank is displayed. Capacity* The P-VOL's capacity.
Page 224 Item Description Cascade Indicates whether a cascaded pair can be created • Enabled Cascaded pairs can be created. • Disabled Cascaded pairs cannot be created. T10 PI* The P-VOL's T10 PI attribute information. • Enabled The P-VOL's T10 PI attribute is enabled. •...
Page 225 * These items are not shown in the table by default. You must add them using the Column Settings window. For more information about how to add items to a table using this window, see the HPE XP7 Remote Web Console User Guide.
Page 226 Item Description CTG ID The consistency group identification number. Click the identification number to open the Consistency Group Properties window. Status The consistency group status. Values: • BC UsedBC is using the consistency group. • BC MF Used (RAID Manager) BC MF is using the consistency group, and you are managing the group with RAID Manager.
Page 227: View Pair Synchronization Rate Window
The following table lists the items on this tab. Item Description Snapshot Group The snapshot group name. Click the snapshot group name to open the FS Pairs window. Number of Pairs The number of pairs assigned to the snapshot group. Create FS Pairs button Click to open the Create FS Pairs window.
Page 228 Pairs table The following table lists the items in this table on the View Pair Synchronization Rate window. Fast Snap GUI windows and wizards...
Page 229 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. Click to open the LDEV Properties window. Use this window to search for P- VOL information. • LDEV NameThe P-VOL's LDEV name. • CLPRThe P-VOL's CLPR ID. •...
Page 230 Item Description Synchronization Rate (%) For BC • If the pair status is COPY(PD)/COPY, COPY(SP)/COPY, or PSUS (SP)/PSUS, the copy progress rate is displayed. • If the pair status is PAIR, PSUS, COPY(RS-R)/RCPY, or PSUE, the synchronization rate between P-VOL and S-VOL is displayed. •...
Page 231: View Pair Properties Window
Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. Click to open the LDEV Properties window. • LDEV NameThe S-VOL's LDEV name. • CLPRThe S-VOL's CLPR ID. • Virtual Storage MachineThe model type and serial number of the virtual storage machine to which the S-VOL belongs.
Page 232 Pair Properties table The following table lists the items in this table. Item Description Copy Type The volume’s copy type. Values: • Business CopyBC pair • Fast SnapFS pair • Business Copy MFBC MF pair. Pool Name (ID) The pool name and identification number. For non-FS pairs, a hyphen (-) is displayed.
Page 233 Item Description Pool Encryption The pool's encryption information. • EnabledA pool was created by the pool volume for which encryption is enabled. • DisabledA pool was created by the pool volume for which encryption is disabled. • MixedA pool contains two or more of the following: ◦...
Page 234 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Provisioning TypeThe P-VOL’s provisioning type. ◦ BasicInternal volume ◦ THPTHP V-VOL ◦ ExternalExternal volume • Emulation Type The P-VOL’s emulation type. •...
Page 235 Item Description • Virtual Storage MachineThe model type and serial number of the virtual storage machine to which the P-VOL belongs. • Virtual LDEV IDThe identification number of the P-VOL’s virtual LDEV. If no virtual LDEV ID is assigned, a blank is displayed. •...
Page 236 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. Click to open the LDEV Properties window. • LDEV NameThe S-VOL's LDEV name. • Provisioning TypeThe S-VOL’s provisioning type. ◦ BasicInternal volume ◦ THPTHP V-VOL ◦...
Page 237 Item Description ◦ For BC W is displayed if the S-VOL has been written to, but it cannot be read when its pair status is PSUS(SP)/PSUS or PSUS. ◦ N is displayed when the S-VOL cannot be read because "-m noread"...
Page 238: History Window
Item Description Mirror Unit The mirror unit number. Cascade Indicates whether a cascaded pair can be created. • Enabled Cascaded pairs can be created. • Disabled Cascaded pairs cannot be created. A hyphen (-) is displayed for non-FS pairs. Type The pair type.
Page 239 Item Description Copy Type list The volume’s copy type. Values: • BCBC • FSFS • BC MF BC MF • FC MF/FCSE FC MF and FCSE FS History table Only tasks that you have performed on the pairs that consist of the P-VOL and/or S-VOLs to which you are allocated are shown on this table.
Page 240: Consistency Group Properties Window
Item Description Description The description of the task you performed. For more information about FS pair tasks, see Viewing Fast Snap pair task history on page 147. Export button Click to open a dialog from which you can download table information to a file.
Page 241 Item Description CTG ID The consistency group identification number. Status The consistency group status. Values: • BC UsedBC is using the consistency group. • BC MF Used (RAID Manager) BC MF is using the consistency group, and you are managing the group with RAID Manager. •...
Page 242 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Emulation Type The P-VOL’s emulation type. • CapacityThe P-VOL's capacity. • CLPRThe P-VOL's CLPR ID. • Virtual Storage MachineThe model type and serial number of the virtual storage machine to which the P-VOL belongs.
Page 243 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation Type The S-VOL’s emulation type. • CapacityThe S-VOL's capacity. • CLPRThe S-VOL's CLPR ID. • Virtual Storage MachineThe model type and serial number of the virtual storage machine to which the S-VOL belongs.
Page 244: Create Fs Pairs Wizard
Item Description Topology ID The topology ID, which indicates the layer of the pair based on the mirror unit. The topology ID consists of the LDEV ID of the volume (root volume for FS pairs), which is the base of the target pair, and the mirror unit number. Detail button Click to open the View Pair Properties window.
Page 245 Item Description Create Pairs using Volumes as Root Volumes Specify whether to create a new pair using the specified volume as the root volume. • Yes: Create a pair using the specified volume as the root volume. The Available Primary Volumes table lists LDEVs which are not paired, and S-VOLs of the cascaded pairs with the clone attribute.
Page 246 Item Description Pair Type Select the pair type. • Snapshot Creates a pair with the snapshot attribute. • Clone Creates a pair with the clone attribute. This item is available when you select: • No for Create Pairs using Volumes as Root Volumes.
Page 247 Item Description Snapshot Group Configuration The configuration of the snapshot data. Values: • P-VOL Straddle When you select Create New in Snapshot Group, creates a snapshot group that straddles multiple primary volumes. When you select Use Existing in Snapshot Group, adds snapshot data to an existing snapshot group that you select in the Available Snapshot Groups table as straddling multiple...
Page 248 Available Primary Volumes table The following table lists the items in the Available Primary Volumes table on the Create FS Pairs window. Item Description LDEV ID The LDEV’s identification number which can be specified as the P-VOL. LDEV Name The LDEV's name. Port ID The port name of the LDEV's LUN path.
Page 249 Item Description Encryption The LDEV’s encryption information. • Enabled Encryption is enabled for the parity group to which the LDEV belongs, or a V-VOL is associated with a pool in which a pool volume has encryption enabled. • Disabled Encryption is disabled for the parity group to which the LDEV belongs, or a V-VOL is associated with a pool in which a pool volume has encryption disabled.
Page 250 Item Description FS Pair Topology ID The topology ID, which indicates the layer of the pair based on the mirror unit. The topology ID consists of the LDEV ID of the root volume and the mirror unit number. Primary Volumes If you use the LDEV as an S-VOL for an existing pair, information about the P-VOL is displayed.
Page 251 Item Description Attribute The LDEV’s attribute. Values: • ALU ALU attribute volume. • SLU SLU attribute volume. • Data Direct Mapping Data Direct Mapping attribute volume. If the volume does not have any attribute specified, a hyphen (-) is displayed. Capacity The capacity of the LDEV.
Page 252 Item Description T10 PI The LDEV's T10 PI attribute information. • Enabled The LDEV's T10 PI attribute is enabled. • Disabled The LDEV's T10 PI attribute is disabled. Snapshot Group The snapshot group name. New Snapshot Group Indicates whether the snapshot group is new or existing. Values: •...
Page 253: Assign Secondary Volumes Window
Item Description Pair Type Select the pair type. • Snapshot A pair with the snapshot attribute. • Clone A pair with the clone attribute. Remove button Click to remove the selected row from the Selected Primary Volumes table. Assign Secondary Volumes window This window is the second window of the Create FS Pairs wizard.
Page 254 Item Description Port ID Filters LDEVs in the Available LDEVs table by the Port ID. This item is displayed if you select LUN for Select Host Group Name Used to filter LDEVs to display in the Available Primary Volumes table. This item is displayed if you select LUN for Select Default: Any Set button...
Page 255 Item Description Capacity The LDEV's capacity. CLPR The LDEV's CLPR ID. Encryption information. Encryption • Enabled Encryption is enabled for the parity group to which P-VOL's LDEV belongs, or a V-VOL is associated with a pool in which a pool volume has encryption enabled •...
Page 256 Item Description Snapshot Group The snapshot group name. Information is displayed for this item only if you have configured a snapshot group for the FS pair. Status The pair status. For more information about pair status, see Fast Snap pair status definitions on page 141. Snapshot Date The date and time that you created the pair to store snapshot data.
Page 257 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Port IDThe port name of the P-VOL LDEV's LUN path. • Host Group Name / iSCSI Target AliasThe host group name and ID or iSCSI target alias and ID of the P-VOL LDEV's LUN path.
Page 258 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe P-VOL's T10 PI attribute information. ◦ EnabledThe P-VOL's T10 PI attribute is enabled.
Page 259 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. If you have not allocated an LDEV to the S-VOL, this item is blank. • LDEV NameThe S-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed.
Page 260: Create Fs Pairs Confirmation Window
Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe S-VOL's T10 PI attribute information. ◦ EnabledThe S-VOL's T10 PI attribute is enabled.
Page 261 Selected Pairs table The following table lists the items in this table on the Confirm window. Fast Snap GUI windows and wizards...
Page 262 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Port ID The port name of the P-VOL LDEV's LUN path. • Host Group Name/iSCSI Target AliasThe host group name of the P- VOL LDEV's LUN path.
Page 263 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe P-VOL's T10 PI attribute information. ◦ EnabledThe P-VOL's T10 PI attribute is enabled.
Page 264 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. If you have not allocated an LDEV to the S-VOL, this item is blank. • LDEV NameThe S-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed.
Page 265 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe S-VOL's T10 PI attribute information. ◦ EnabledThe S-VOL's T10 PI attribute is enabled.
Page 266 Item Description LDEV ID The LDEV identification number, which you can specify as the S-VOL. LDEV Name The LDEV's name. Capacity The LDEV's capacity. CLPR The LDEV's CLPR ID. Remount Device Indicates whether remounting the device is required. Snapshot Group The snapshot group name.
Page 267: Select Pool Window
Item Description Type The pair type. • Snapshot A pair with the snapshot attribute. • Clone A pair with the clone attribute. Pair Topology ID The topology ID, which indicates the layer of the pair based on the mirror unit. The pair topology ID consists of the LDEV ID of the root volume and the mirror unit number.
Page 268 Item Description Capacity The pool capacity. If the pool-VOL belong to the parity group in which capacity expansion is enabled, is included in the pool, sometimes the capacity is displayed less than the possible capacity which can be written. Values: •...
Page 269: Split Pairs Wizard
"-" is shown. Detail button Click to open the Pool Property window. For more information about this window, see the HPE XP7 Provisioning for Open Systems User Guide. Split Pairs wizard More information...
Page 270 Selected Pairs table The following table lists the items in this table on the Split Pairs window. Item Description Primary Volume P-VOL information for the pairs you have selected to split. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name.
Page 271 Item Description Secondary Volume The S-VOL information for the pairs you have selected to split. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation Type The S-VOL's emulation type. • Capacity The S-VOL's capacity. •...
Page 272: Split Pairs Confirmation Window
Item Description Split Type The mode in which you want to split the selected pairs. Values: • Quick SplitThe pair is split and then remaining differential data is copied to the S-VOL in the background. Specify this value when you want to write to or read from the S-VOL immediately after splitting a pair.
Page 273 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Emulation Type The P-VOL's emulation type. • CapacityThe P-VOL's capacity. • CLPRThe P-VOL's CLPR ID. Copy Type The volume’s copy type. Values: FSFS pair Snapshot Group...
Page 274: Resync Pairs Wizard
Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation Type The S-VOL's emulation type. • Capacity The S-VOL's capacity. • CLPR The S-VOL's CLPR ID. Pool Name (ID) The pool name and identification number.
Page 275 Selected Pairs table The following table lists the items in this table on the Resync Pairs window. Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Emulation Type The P-VOL's emulation type. •...
Page 276 Item Description Snapshot Date The date and time that you created the pair to store snapshot data. Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation Type The S-VOL's emulation type. •...
Page 277: Resync Pairs Confirmation Window
S-VOL. The differential data is updated on the P- VOL. For more information about the types of pair resynchronization, see the HPE XP7 Business Copy User Guide. Copy Pace The speed at which the S-VOL is copied.
Page 278 S-VOL. The differential data is updated on the P- VOL. For more information about the types of pair resynchronization, see the HPE XP7 Business Copy User Guide. Copy Pace The speed at which the S-VOL is copied.
Page 279: Delete Pairs Window
Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation Type The S-VOL's emulation type. • CapacityThe S-VOL's capacity. • CLPRThe S-VOL's CLPR ID. Pool Name (ID) The pool name and identification number.
Page 280 Selected Pairs table The following table lists the items in this table in the Delete Pairs wizard. Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • Emulation Type The P-VOL's emulation type. •...
Page 281: Edit Local Replica Options Wizard
Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. • LDEV NameThe S-VOL's LDEV name. • Emulation TypeThe S-VOL's emulation type. • CapacityThe S-VOL's capacity. • CLPRThe S-VOL's CLPR ID. Pool Name (ID) The pool name and identification number. Mirror Unit The mirror unit number.
Page 282 Setting fields The following table lists the items in the Edit Local Replica Options window of the Edit Local Replica Options wizard. Item Description System Type The storage system type. Values: • OpenSelect when you want to change system options that affect BC and FS performance.
Page 283 BC/FS System Options table The following table lists the items in this table on the Edit Local Replica Options window. Item Description System Option Displays the system options. The number next to each item is the system option number. Values: •...
Page 284 BC MF/FC MF/FCSE System Options table The following table lists the items in this table on the Edit Local Replica Options window. Fast Snap GUI windows and wizards...
Page 285 Item Description System Option Displays the system options. The number next to each item is the system option number. Values: • Swap & Freeze (1)Quick Restores and then saves the current data. Used with the Quick Restore, inhibits the Update Copy operation after performing Quick Restore, and the paired S-VOL (T-VOL for FC MF or FCSE) is not updated.
Page 286: Edit Local Replica Options Confirmation Window
Item Description (the number of jobs for which copy processing can be executed concurrently) of copy processing for each pair is changed from 1 to Status Shows whether the option is currently enabled or disabled. Enable button Click to enable the selected option. Disable button Click to disable the selected option.
Page 287: Fs Pairs Window
BC/FS or BC MF/FC MF/FCSE System Options table The following table lists the items in this table on the Confirm window of the Edit Local Replica Options wizard. Item Description System Option Options that can be changed. Status Shows whether the option is currently enabled or disabled. FS Pairs window The following image shows the FS Pairs window.
Page 288 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. • SLU IDThe P-VOL’s SLU ID. If the SLU attribute is not specified for the P-VOL, a hyphen (-) is displayed. •...
Page 289 Item Description Note: Data encryption is not ensured in an LDEV with Mixed encryption status. If you want to manage data encryption, use LDEVs with the Enabled or Disabled status. If the LDEV is an external volume or migration volume, a hyphen (-) is displayed.
Page 290 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. Click to open the LDEV Properties window. • LDEV NameThe S-VOL's LDEV name. • Port IDThe port name of the S-VOL LDEV's LUN path. If the path is not defined, a blank is displayed.
Page 291 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe P-VOL's T10 PI attribute information. ◦ EnabledThe P-VOL's T10 PI attribute is enabled.
Page 292: Assign Secondary Volumes Wizard
Item Description Mirror Unit The mirror unit number. Cascade Indicates whether a cascaded pair can be created. • Enabled Cascaded pairs can be created. • Disabled Cascaded pairs cannot be created. Type The pair type. • Snapshot A pair with the snapshot attribute. •...
Page 293: Assign Secondary Volumes Window
Assign Secondary Volumes window This window is the first window of the Assign Secondary Volumes wizard. The following image shows this window. The following table lists the items on this window. Item Description Capacity Click to select the capacity for which to filter the available LDEVs.
Page 294 Item Description Set button Click to move an LDEV that you have selected in the Available LDEVs table to the Selected Pairs table. You can also click to configure a pair you have selected in the Available LDEVs table and a pair you have selected in the Selected Pairs table.
Page 295 Item Description T10 PI The LDEV's T10 PI attribute information. • EnabledThe LDEV's T10 PI attribute is enabled. • DisabledThe LDEV's T10 PI attribute is disabled. Snapshot Group The snapshot group name. Information is displayed for this item only if you have configured a snapshot group for the FS pair.
Page 296 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed. • Port IDThe port name of the P-VOL LDEV's LUN path. •...
Page 297 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe P-VOL's T10 PI attribute information. ◦ EnabledThe P-VOL's T10 PI attribute is enabled.
Page 298 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. If you have not allocated an LDEV to the S-VOL, this item is blank. • LDEV NameThe S-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed.
Page 299: Assign Secondary Volumes Confirmation Window
Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe S-VOL's T10 PI attribute information. ◦ EnabledThe S-VOL's T10 PI attribute is enabled.
Page 300 Selected Pairs table The following table lists the items in this table on the Confirm window. Fast Snap GUI windows and wizards...
Page 301 Item Description Primary Volume The P-VOL information. Values: • LDEV ID The P-VOL's LDEV identification number. • LDEV Name The P-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed. • Port ID The port name of the P-VOL LDEV's LUN path. •...
Page 302 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe P-VOL's T10 PI attribute information. ◦ EnabledThe P-VOL's T10 PI attribute is enabled.
Page 303 Item Description Secondary Volume The S-VOL information. Values: • LDEV IDThe S-VOL's LDEV identification number. If you have not allocated an LDEV to the S-VOL, this item is blank. • LDEV NameThe S-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed.
Page 304 Item Description ◦ Compression The compression function is used. ◦ Deduplication and Compression The deduplication function and the compression function are used. ◦ Disabled The capacity saving function is not used. • T10 PIThe S-VOL's T10 PI attribute information. ◦ Enabled The S-VOL's T10 PI attribute is enabled.
Page 305: Remove Secondary Volumes Window
Item Description Snapshot Group The snapshot group name. Information is displayed for this item only if you have configured a snapshot group for the FS pair. Status The pair status. For more information about pair status, see Fast Snap pair status definitions on page 141.
Page 306 Selected Secondary Volumes table The following table lists the items in this window on the Remove Secondary Volumes window. Item Description LDEV ID The LDEV identification number, which you can specify as the S-VOL. LDEV Name The LDEV's name. Capacity The LDEV's capacity.
Page 307 Item Description Primary Volume The P-VOL information. Values: • LDEV IDThe P-VOL's LDEV identification number. • LDEV NameThe P-VOL's LDEV name. If you have not allocated an LDEV to the S-VOL, a hyphen (-) is displayed. • CapacityThe P-VOL's capacity. •...
Page 308: Websites
Websites General websites Hewlett Packard Enterprise Information Library www.hpe.com/info/EIL Single Point of Connectivity Knowledge (SPOCK) Storage compatibility matrix www.hpe.com/storage/spock Storage white papers and analyst reports www.hpe.com/storage/whitepapers For additional websites, see Support and other resources on page 309. XP websites XP7 documentation (Storage Information Library) www.hpe.com/info/xp7-docs...
Page 309: Support And Other Resources
Accessing Hewlett Packard Enterprise Support • For live assistance, go to the Contact Hewlett Packard Enterprise Worldwide website: www.hpe.com/assistance • To access documentation and support services, go to the Hewlett Packard Enterprise Support Center website: www.hpe.com/support/hpesc Information to collect •...
Page 310: Customer Self Repair
Customer self repair Hewlett Packard Enterprise customer self repair (CSR) programs allow you to repair your product. If a CSR part needs to be replaced, it will be shipped directly to you so that you can install it at your convenience.
Page 311: Regulatory Information
Additional regulatory information Hewlett Packard Enterprise is committed to providing our customers with information about the chemical substances in our products as needed to comply with legal requirements such as REACH (Regulation EC No 1907/2006 of the European Parliament and the Council). A chemical information report for this product can be found at: www.hpe.com/info/reach...

Hewlett Packard Enterprise HPE XP7 User Manual

Overview of Fast Snap

Fast Snap System and Planning Requirements

Configuring Fast Snap

Managing Fast Snap Pairs

Monitoring and Maintaining Fast Snap

Troubleshooting Fast Snap

RAID Manager Command Reference for Fast Snap

Fast Snap GUI Windows and Wizards

Websites

Support and Other Resources

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for Hewlett Packard Enterprise HPE XP7

Summary of Contents for Hewlett Packard Enterprise HPE XP7

Table of Contents