HP StorageWorks 1510i - Modular Smart Array User Manual

Active/active firmware v2.x

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Page 1: Hp Installation And Conﬁguration Assistance
HP Storage Management Utility user guide active/active ﬁrmware v2.x Part number: 383075–002 Second edition: May 2008...
Page 2 Legal and notice information © Copyright 2005, 2008 Hewlett-Packard Development Company, L.P. Conﬁdential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.21 1 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S.
Page 3: Table Of Contents
Contents About this guide ......Intended audience ........Prerequisites .
Page 4 Creating target portal groups ......Assigning portals to the portal group ......Mapping logical drives to the target .
Page 5 Choosing a RAID level ........B Icon descriptions .
Page 6 Figures 1 SMU display — showing the ﬁve tabs ..... . . 2 View tab—showing the component and task lists .
Page 7 Tables 1 Document conventions ......2 Available tasks, listed by system component .
Page 9: About This Guide
About this guide This guide provides information about using the Storage Management Utility (SMU) to conﬁgure and manage storage associated with an array controller that supports iSCSI networking. Intended audience This guide is intended for network administrators and storage managers with moderate or advanced knowledge of IP and storage networks.
Page 10: Document Conventions And Symbols
Additional related technical information includes: • Internet Small Computer Systems Interface (iSCSI) rfc 3720: http://www.ietf.org/rfc/rfc3720.txt • iSCSI Naming and Discovery: https://datatracker.ietf.org/public/pidtracker.cgi • Internet Storage Name Service (iSNS): http://www.ietf.org/internet-drafts/draft-ietf-ips-isns-22.txt • iSCSI and SLP: http://www.ietf.org/internet-drafts/draft-ietf-ips-iscsi-slp-09.txt • Zeroconf: http://ietf.org/internet-drafts/draft-ietf-zeroconf-ipv4-linklocal-10.txt • 802.1q for Virtual LANs: http://www.ieee802.org/1/pages/802.1Q.html Document conventions and symbols Table 1 Document conventions...
Page 11: Documentation Feedback 1
HP installation and conﬁguration assistance Storage management and networking knowledge is required to successfully install this product. If you are not familiar with installing and conﬁguring storage array systems, HP can install your system for you. For more information, access our website: http://www.hp.com/go/services. Under the Services Portfolio banner, select Infrastructure Services >...
Page 12 About this guide...
Page 13: Overview
1 Overview In this section: • Features and requirements • Initial conﬁguration methods • Accessing the SMU • Changing the management port IP address through the MSA1510i controller display panel • Best practices Features and requirements The Storage Management Utility (SMU): •...
Page 14: Page Description
Page description As shown in Figure 1, the interface includes ﬁve tabs, each of which is documented in detail in a separate section in this guide. Figure 1 SMU display — showing the ﬁve tabs • View—For viewing detailed conﬁguration and status information. (For more information, see “View”...
Page 15: Accessing The Smu
Accessing the SMU Install, connect, and apply power to the storage and other network devices, as detailed in your system user documentation. Obtain and record the IP address assigned to the primary management port (MA0). (Worksheets may be provided with you system installation instructions.) To determine the IP address, press the arrow buttons on the front of the array controller and scroll through the messages until the following message is displayed on the controller LCD panel: 603 Port MA0 IP <address>...
Page 16: Changing The Management Port Ip Address Through The Msa1510I Controller Display Panel
Wait a few moments for the utility to load. NOTE: When accessing the SMU for the ﬁrst time, a window is displayed requiring input of a user-deﬁned username and password. One of the following happens: • If key components of the system are unconﬁgured, a prompt to go to the Wizard tab is displayed.
Page 17: Best Practices
Disable DHCP. a. With Network Settings displayed and blinking, press > to select it. b. Press ^ or v until DHCP Enabled is displayed and blinking, and then press > to select it. Press ^ or v to change the setting to No. d.
Page 18 (MPIO multipathing software, etc.) in the conﬁguration. Conﬁgure targets using portals on each controller. • Create fault-tolerant logical storage units—Create LUNs using fault-tolerant RAID levels and striping methods. • When assigning system names and aliases, use only the following characters: •...
Page 19: View
2 View The Storage Management Utility (SMU) View tab is used to view system information. Included in this section: • Page description • Available tasks Page description As shown in Figure 2, the page is divided into 2 main sections: •...
Page 20: Views
• Update—For updating MSA controller and module ﬁrmware. (For more information see “Update” on page 79.) Views As shown in Figure 3, expand the View drop-down box to select a viewing option. Your selection determines which system components are included in the component list: All Devices—Displays all system components (Figure •...
Page 21: Viewing Status Alerts (View All Status Alerts)
Figure 4 View tab—task listing The following tasks are available in the View tab: • Viewing status alerts (View All Status Alerts) • Viewing the event log (View Event Log) • Refreshing the display (Refresh System) • Identifying devices (Identify Device) Viewing status alerts (View All Status Alerts) Figure 5 illustrates some informational status alerts, generated when creating a logical drive.
Page 22: Viewing The Event Log (View Event Log)
Figure 5 View tab—View All Status Alerts page Viewing the event log (View Event Log) Figure 6 shows an example of a system event log. Figure 6 View tab—View Event Log page Refreshing the display (Refresh System) To refresh the SMU display, select Refresh System. The utility scans the conﬁguration, and after a few moments, updates the display.
Page 23: Identifying Devices (Identify Device)
Identifying devices (Identify Device) To locate a system component by lighting up its LEDs, select the item from the component list, and then select Identify Device. For example, if this task is selected for a logical drive, the LEDs on the physical hard drives included in that logical drive are illuminated.
Page 24 View...
Page 25: Conﬁgure
3 Conﬁgure The Storage Management Utility (SMU) Conﬁgure tab allows for complete system conﬁguration and management. You can conﬁgure a new system, conﬁgure newly added components to an already-conﬁgured system, and make changes to an already-conﬁgured system. Included in this section: •...
Page 26: View As Drop-Down Box
• Conﬁgure—For initially conﬁguring a system, entering new information, or changing existing settings. (For more information, see “Conﬁgure” on page 25.) • Wizards—For initially conﬁguring a simple system. (For more information, see “Wizards” on page 69”.) • Diagnose—For generating an XML-formatted diagnostic report. (For more information, see “Diagnose”...
Page 27: Available Tasks
Available tasks Figure 9 Conﬁgure tab—task listing To perform a task in the SMU: Select a system component from the list on the left side of the page. Select a task from the list on the right side of the page. Enter the requested information.
Page 28: Available Tasks, Listed By System Component
Table 2 Available tasks, listed by system component System Available tasks Where documented component Create Array Creating arrays, page 39 Create iSCSI Target Creating storage targets, page 43 Add iSCSI Initiator Adding authorized initiators, page 49 Changing array or logical drive characteri Array Accelerator Settings stics, page 58 Changing global settings (Storage System...
Page 29 System Available tasks Where documented component Create Logical Drive Creating logical drives, page 41 Spare Management Assigning spare drives to an array, page 40 Array Delete Deleting a component (Delete), page 63 Changing array or logical drive characteri Expand Array stics, page 58 Changing array or logical drive characteri Migrate RAID/Stripe size...
Page 30: Sample Conﬁguration Used In This Document
Sample conﬁguration used in this document Illustrations in this document demonstrate the process of conﬁguring a dual-controller MSA1510i storage system, with multiple targets being accessed by multiple initiators. Although each real-world environment and the associated conﬁguration steps will differ from this example, fundamental principles of the conﬁguration steps are the same for all installations.
Page 31: Sample Conﬁguration-Physical-To-Logical Storage Diagram
Sample conﬁguration—Physical-to-logical storage diagram 15293 Item Description MSA1510i controller shelf and Sample includes two array controllers and two 2-Port Ethernet iSCSI modules, MSA20 storage enclosure with twelve SATA hard drives in the storage enclosure. Array A Uses hard drives from bays 1, 2, 3, and 4. Array B Uses hard drives from bays 5, 6, and 7, with number 1 1 assigned as a spare.
Page 32: Sample Conﬁguration-Path/Accessibility Diagram
Sample conﬁguration—Path/accessibility diagram 15294a Port Target IP address Portals Portal group 10.10.10.254 Not applicable Not applicable Not applicable Portal 1: 3260 Group: 1 Target: 1 10.10.10.10 Group: 3 Target: 2 Portal 2: 3261 Group: 1 Target: 1 Portal 3: 3260 10.10.10.1 1 Group: 3 Target: 2...
Page 33: Fundamental Tasks, In Initial Conﬁguration Sequence
Fundamental tasks, in initial conﬁguration sequence Conﬁguring a new system includes the following tasks, performed in the following sequence: • Conﬁguring management and data ports • Conﬁguring hard drives • Creating storage targets • Adding authorized initiators Conﬁguring management and data ports As described in the installation documents, the array connects to the network switch from its Ethernet iSCSI module.
Page 34 Select the Management Port on the controller and view the available tasks. Select Management Port Settings. Conﬁgure...
Page 35: Conﬁguring Data Ports
Enter the settings for the management port. NOTE: Enabled • Port State must be (default) to use the SMU. If the management port state was disabled, you must use the Command Line Interface (CLI) to re-enable it. (For more information, see the Command Line Interface user guide.) •...
Page 36 Select Data Port > Add IP Address. Enter settings for the data port. NOTE: • To control the path of storage trafﬁc to and from the array controller and to add one level of system security, HP recommends assigning an IP Address to the data port that is in a different LAN segment than the management port.
Page 37: Sample Conﬁguration Status - After Conﬁguring Management And Data Ports
Select IP Address > Create Portal. Enter settings for the portal. NOTE: For additional security, do not use commonly-known TCP ports. When the display refreshes, verify that the newly conﬁgured portal is shown in the component list. As needed for your environment, repeat Step 4 through Step 6...
Page 38: Conﬁguring Hard Drives
Figure 10 Sample conﬁguration—after conﬁguring management and data ports NOTE: Due to the limited screen size, information for the management and data ports associated with the controller in slot 2 are not shown in Figure Conﬁguring hard drives Conﬁguring hard drives includes two steps: •...
Page 39 Creating arrays Expand the View as drop-down box and select the Storage with iSCSI or Storage only view. Select Storage System > Create Array. HP Storage Management Utility user guide...
Page 40 Select the hard drives to include in the array. NOTE: • The SMU does not allow hard drives from SATA and SCSI storage enclosures to be included in the same array. • Hard drives included in an array should be the same size and speed. When drive sizes and speeds are mixed within an array, the usable capacity and the processing ability of the array is reduced to that of the smallest and slowest hard drive.
Page 41: Creating Logical Drives
Select the hard drive(s) to assign as a spare. NOTE: • A spare must be the same type (SATA or SCSI) as other drives in the array. • A spare must be the same size (or larger) and speed (or faster) as other drives in the array.
Page 42: Conﬁguration Status - After Conﬁguring Hard Drives
As needed, expand the drop-down boxes in the task area to change the settings from the suggested defaults. NOTE: • The SMU suggests defaults for the logical drive, creating one large logical drive from all unused space on the array, with the highest fault tolerance and performance possible for the hard drives included in that array.
Page 43: Creating Storage Targets
Figure 1 1 Sample conﬁguration—after conﬁguring hard drives Creating storage targets Conﬁguring each storage target includes several steps: • Creating the target • Creating target portal groups • Assigning portals to the portal group • Mapping logical drives to the target •...
Page 44 Select Storage System and view the available tasks. Select Create iSCSI Target. Enter the requested information for the target. NOTE: • The utility suggests default values for the Target Name and Alias that adhere to iSCSI standards. To accept the defaults, click OK. •...
Page 45: Creating Target Portal Groups
Creating target portal groups Select Target > Create Portal Group. Enter the requested information for the portal group. NOTE: • The utility suggests a default Portal Group Alias. Accept the default or enter a user-deﬁned value. • This step creates the portal group entity; additional steps build information behind the portal group.
Page 46: Assigning Portals To The Portal Group
Assigning portals to the portal group Select Portal Group > Assign Portals. Expand the Port Name drop-down box and select the data port for this portal group to use. Select the portals for this portal group to use. NOTE: • When assigning portals to a target's portal group, you are designating the path for trafﬁc to and from that target.
Page 47: Mapping Logical Drives To The Target
Mapping logical drives to the target Select Target > Map Logical Drive to Target. Enter the requested information for the mapped logical drive. NOTE: • The utility suggests a default value for the Mapped LUN Alias. Accept the default or enter a user-deﬁned, content-descriptive value.
Page 48: Conﬁguration Status - After Creating Storage Targets
Select the newly created Portal Group > Assign Portals. Expand the Port Name drop-down box and select a port on the redundant Ethernet iSCSI module for this target portal group to use. After the portals associated with the selected logical port are displayed, select the TCP portals to use. Conﬁguration status - after creating storage targets Figure 12 illustrates the current conﬁguration.
Page 49: Adding Authorized Initiators
Figure 12 Sample system conﬁguration—after conﬁguring targets NOTE: Figure 12 illustrates the following for Target 1: • One logical drive (Logical Drive 1) is mapped to this target. • Primary and redundant paths are deﬁned for this target: • Portal Group “pg1” uses two portals on data port SA0 of the primary Ethernet iSCSI module. •...
Page 50: Conﬁguration Status - After Adding Initiators
Enter the requested information for the iSCSI initiator. NOTE: • The iSCSI Initiator Name is assigned when deﬁning the initiator on the server, and is usually in the format of “iqn.xxx”. Obtain initiator names from your network administrator or as displayed in the iSCSI initiator software on the server.
Page 51: Security Tasks
Figure 13 Sample conﬁguration—after adding initiators IMPORTANT: Perform the following tasks to complete the conﬁguration: • Enter security settings (optional, but recommended). (For more information, see “Security tasks” on page 51.) • Enter conﬁguration settings in the iSCSI initiator conﬁguration software utility (on the server), including: •...
Page 52 Select Target > Enable/Disable Access Control. Expand the ACL State drop-down box, and enable access control. The following warning message is displayed: Conﬁrm that there is no active I/O on the target, and then click OK. IMPORTANT: • To prevent loss of access to the storage, ACLs should not be modiﬁed if there is an active session between the initiator and the target.
Page 53: Setting Up Chap Authentication
Select Mapped Logical Drive > Update Access Control. NOTE: Update Access Control is listed as a common task only if Access Control is enabled (Step Select the initiators that can access this mapped logical drive. Repeat Step 6 through Step 7 for each mapped logical drive of the target.
Page 54: Setting Up Target-Speciﬁc Initiator-To-Target Chap Authentication
In the SMU, select Storage System > Canonical Target CHAP Settings. Expand the CHAP State drop-down box and change the setting to Enabled. NOTE: If Canonical Target CHAP settings have already been entered, the display is contracted and protected by a gateway check box. To change existing CHAP settings, clear the Use Existing CHAP Settings check box.
Page 55: Setting Up Mutual Chap Authentication
In the SMU, select Target > CHAP Settings. Expand the CHAP State drop-down box and change the setting to Enabled. NOTE: If CHAP settings have already been entered for this target, the display is contracted and protected by a gateway check box. To change existing CHAP settings, clear the Use Existing CHAP Settings check box.
Page 56: Setting The Ssl Certiﬁcate
To enter an initiator-speciﬁc CHAP secret in both the SMU and in the iSCSI initiator software utility: a. On the server, open the iSCSI initiator software utility. Navigate through the iSCSI initiator software utility and either assign a CHAP secret to the initiator or record the existing CHAP secret.
Page 57: Additional Management And Conﬁguration Tasks
Select Management Port > Set SSL Certiﬁcate. Expand the SSL Certiﬁcate Type drop-down box and select Upload PEM Certiﬁcate. Enter the requested information. Additional management and conﬁguration tasks In addition to the tasks already described, the following tasks are also available: •...
Page 58: Adding A Route (Add Route)
Adding a route (Add Route) To add an entry to the route table for this controller: Select a data port from the system component list, and then select the Add Route task. Enter the IP information for the route. Changing array or logical drive characteristics Changes to existing storage arrays or logical drives include: •...
Page 59: Disabling The Array Accelerator (Array Accelerator Settings)
IMPORTANT: • Completion time of an array expansion, logical drive extension, or logical drive migration varies, depending on the drive speed and type, system array controller settings, and existing storage conﬁguration. (Process times of 36 to 72 hours are common.) •...
Page 60: Extending A Logical Drive (Extend Logical Drive)
• Create new logical drives on the array. (For more information, see “Creating logical drives” on page 41.) • Migrate the RAID level or stripe size of existing logical drives on the array (For more information, see“Migrating to a different RAID level or stripe size (Migrate RAID/Stripe Size)”...
Page 61: Changing Global Settings (Storage System Settings)
Select Logical Drive > Migrate Logical Drive. Enter the new settings for the logical drive. Changing global settings (Storage System Settings) The default global settings are adequate for most environments. If needed, use this option to: • Change the ratio of memory allocated to read and write operations. •...
Page 62: Changing Target Login Parameters (Set Login Parameters)
Enter the new values. NOTE: • The Cache Ratio determines the amount of memory allocated to read and write operations. For improved performance, you may want to change this ratio to allocate more memory to write operations, as high as 10% read/90% write. •...
Page 63: Deleting A Component (Delete)
Select Storage System > Clear Conﬁguration. Select the conﬁguration components to clear. NOTE: • Select all—Clears all iSCSI, storage, and management conﬁguration settings. • iSCSI Conﬁguration—Clears iSCSI conﬁguration settings only. • Management Conﬁguration—Clears management conﬁguration settings only. • Storage Conﬁguration—Clears storage conﬁguration settings only. •...
Page 64: Disabling Automatic Path Switching (Redundancy Settings)
NOTE: Some of the components that can not be deleted while in use include: • Removing a portal from a portal group • Deleting a portal group • Deleting a target Disabling automatic path switching (Redundancy Settings) NOTE: This task is available for dual-controller conﬁgurations only. Select Storage System >...
Page 65: Enabling Isns Discovery
Enabling iSNS discovery Enabling iSNS discovery of storage targets includes: • Enabling iSNS discovery (iSNS Discovery Settings) • Enabling iSNS discovery of speciﬁc targets (Discovery Settings) Enabling iSNS discovery (iSNS Discovery Settings) Select Storage System > iSNS Discovery Settings. Expand the drop-down boxes to enable iSNS discovery and enter other iSNS settings. NOTE: •...
Page 66: Enabling Isns Discovery Of Speciﬁc Targets (Discovery Settings)
Enabling iSNS discovery of speciﬁc targets (Discovery Settings) Select Target > Discovery Settings. Expand the drop-down boxes to Enable SLP and/or iSNS Discovery. Identifying devices (Identify Device) To locate a system component by lighting up its LEDs, select the item from the component list, and then select Identify Device.
Page 67: Setting The Preferred Path For A Lun (Preferred Path)
Setting the preferred path for a LUN (Preferred Path) NOTE: This task is available for dual-controller conﬁgurations only. To manually (explicitly) set controller ownership of a LUN: Select an already-conﬁgured logical drive from the system component list, and then select the Preferred Path task.
Page 68: Viewing Status Alerts (View All Status Alerts)
NOTE: Make note of the icon displayed next to each system component. Icons provide at-a-glance status of each component. (For more information about status icons, see “Icon descriptions” on page 91.) Viewing status alerts (View All Status Alerts) Available in both the Conﬁgure and View tabs, View All Status Alerts shows the following alerts: •...
Page 69: Wizards
4 Wizards The Initial System Conﬁguration Wizard is the easiest and simplest method to initially conﬁgure your system. You are prompted in a logical sequence for storage, iSCSI, logon, and management settings. The wizard then uses those settings to conﬁgure the storage as an iSCSI target and make it available to the iSCSI initiator.
Page 70 In the initial Welcome page, expand the drop-down box on the left side of the page to display the steps included in the wizard. When prompted, click Next. Wizards...
Page 71 In the Storage Conﬁguration page, enter conﬁguration settings for the logical drive. NOTE: • The wizard suggests a Fault Tolerance (RAID) level, unique to each installation, based on the detected number of storage enclosures, enclosure type (SATA or SCSI), number of available hard drives, drive generation, speed, and size.
Page 72 In the iSCSI Conﬁguration page, enter values for one of the data ports. NOTE: • By default, the wizard recommends conﬁguring Data Port SA0. HP recommends accepting the default. • Assign an IP Address to the data port. • VLANs are set up on the switch and are used as one method of controlling access to the storage.
Page 73 In the Logon Settings page, specify if you want to change access information. NOTE: To change the logon username and password, clear Use Existing Administrator ID and Password. The Logon Settings page expands, with options to change the Admin ID and Password.
Page 74 In the Management Settings window, enter settings for the management port. NOTE: Enabled • Port State must be (default) to use the SMU. To re-enable SMU management, you must use a Command Line Interface (CLI) command. For more information, see the Command Line Interface user guide.
Page 75 After completing all steps of the wizard, a ﬁnal conﬁrmation window is displayed. • Click Finish to apply the conﬁguration settings. • Click Back to change settings. • Click Cancel to exit the wizard. Wait for the utility to apply your settings. 1 1.
Page 76 Wizards...
Page 77: Diagnose
5 Diagnose The Storage Management Utility (SMU) Diagnose tab is used to generate diagnostic information about the array controller. Click Generate Report. HP Storage Management Utility user guide...
Page 78 After a few moments, the report is displayed in a separate window. As needed, use the options available in the report window menu bar to edit or save the diagnostic information to a ﬁle. Diagnose...
Page 79: Update
6 Update Updating system ﬁrmware (Flash Firmware) Available tasks As shown in Figure 14, the Update tab includes two options: • Updating MSA ﬁrmware • Updating hard drive ﬁrmware Figure 14 Update tab—task listing Prerequisites Before updating system ﬁrmware, make note of the following: •...
Page 80: Updating Msa Firmware
• If it has been more than six months since you restarted your MSA storage system, HP recommends that you power-cycle the MSA (power off, and then power on) before updating the ﬁrmware to ensure that you are working with a fresh system. •...
Page 81 Obtain the latest ﬁrmware ﬁles and save to a temporary location on the host: a. Go to the MSA1510i Support page: http://www.hp.com/support b. Select your language. Select your operating system. The display is updated to include a list of available downloads for the speciﬁed operating system. d.
Page 82 From within the SMU, select Update > Controller > Flash Firmware. Under the Flash Firmware banner, click Browse and navigate to the location of the previously-obtained ﬁrmware ﬁle, and then click OK. Wait for a completion message to display. For example, the following messages are displayed on the MSA controller LCD panel: MSA1510i updates: 307 FIRMWARE FLASH DONE 313 FIRMWARE FLASH DONE ON BOX <n>...
Page 83: Updating Hard Drive Firmware
1 1. View the messages displayed on the array controller LCD panel during startup to conﬁrm that the ﬁrmware was installed successfully and that the array controller restarts successfully. NOTE: In dual-controller conﬁgurations, ﬁrmware on the two controllers is compared each time the MSA chassis is restarted.
Page 84 Open a browser and access the SMU. Select Update > Storage System > Flash Firmware. Under the Upload Inventory Firmware XML File banner, click Browse, navigate to the location of the previously-obtained XML ﬁrmware ﬁle, select an updating option, and then click OK. Wait for the MSA1510i to process the XML ﬁle and update the display with a list of all Smart Components that need updating.
Page 85: A Storage Overview
A Storage overview • Arrays and logical drives • Fault-tolerance levels • Comparison of RAID Methods • Choosing a RAID level Arrays and logical drives The capacity and performance of a single physical hard drive is adequate for home users. However, business users demand higher storage capacities, higher data transfer rates, and greater protection against data loss when a hard drive fails.
Page 86: Fault-Tolerance Levels
15312 Figure 17 Data striping (S1-S4) and data blocks (B1-B12) on multiple physical drives (D1, D2, D3) For data in the logical drive to be readable, the data block sequence must be the same in every stripe. This sequencing process is performed by the array controller, which sends the data blocks to the drive write heads in the correct order.
Page 87: Raid 0-No Fault Tolerance
that was originally on the failed drive to the online spare. The system is quickly restored to full RAID-level data protection. (In the unlikely event that another drive in the array fails while data is being rewritten to the spare, the logical drive will still fail.) A spare is assigned to an array and is automatically assigned to all logical drives in the same array.
Page 88: Raid 5-Distributed Data Guarding
15315 Figure 20 RAID 1+0 array, with eight physical hard drives (D1 through D8) In each mirrored pair, the physical drive that is not busy answering other requests answers any read request sent to the array. (This behavior is called load balancing.) If a physical drive fails, the remaining drive in the mirrored pair can still provide all the necessary data.
Page 89: Raid 6-Advanced Data Guarding
Table 5 RAID 5 features Advantages Disadvantages High read performance. Relatively low write performance. Loss of data if a second drive fails before data from No loss of data if one physical drive fails. the ﬁrst failed drive is rebuilt. More usable drive capacity than RAID 1+0, because parity information requires the storage space equivalent to one physical drive.
Page 90: Summary Of Raid Methods
Table 7 Summary of RAID methods RAID 5 RAID 6 RAID 0 RAID 1+0 Distributed Data Advanced Data Alternative name Striping Mirroring Guarding (DDG) Guarding (ADG) Usable drive 100% 67% to 93% 50% to 96% space* Usable drive space (n-1)/n (n-2)/n formula Minimum number...
Page 91: Smu Icons
B Icon descriptions Table 9 describes SMU icons. Table 9 SMU icons Icon Meaning Top-level storage system Controller—Active Controller—Standby Management or data port—Disabled Management or data port—Enabled IP address Portal Connection Session Route Target Mapped logical drive Portal group HP Storage Management Utility user guide...
Page 92 Icon Meaning Initiator Logical drive Logical drive—Being expanded (animated icon) Logical drive—Being rebuilt (animated icon) SATA array SATA hard drive SATA hard drive—Spare SATA hard drive—Active spare (animated icon) SATA hard drive—Being rebuilt (animated icon) SATA hard drive—Active spare—Being rebuilt (animated icon) SCSI array SCSI hard drive SCSI hard drive—Spare drive...
Page 93 Icon Meaning Status—Critical Status—Degraded Status—Okay Status - Pause/standby Help More information is available for this component. View the status alerts. HP Storage Management Utility user guide...
Page 94 Icon descriptions...
Page 95 Index conﬁguration, installation Access Control Lists (ACLs), 51 assistance, 1 1 access permissions, default settings, 15 conﬁguration, sample accessing SMU device and cabling, 30 ﬁrst time, 16 path/accessibility diagram, 32 accessing the SMU, 15 storage diagram, 31 Add IP Address task, described, 36 Conﬁgure tab Add iSCSI Initiator task,...
Page 96 data protection methods (See also RAID levels.), Flash Firmware task, described, 79 ﬂashing the ﬁrmware, 79 data stripes, deﬁned, 85 default access permissions, 15 Delete task, described, 63 deleting components, 63 hard drives DHCP Setting, 35, 36 conﬁguring, 38 Diagnose tab protecting against failure of, 86 described, 77...
Page 97 prerequisites, 9 ﬁrmware, updating, 79 management port priority settings, 62 changing through MSA1510i display, 16 conﬁguration , dual-controller, 35 conﬁguring, 33, 33 RAID 0 (no fault tolerance), 87 initial IP address, 15 RAID 1+0 (drive mirroring), 87 IP address RAID 5, 88 changing, 16 RAID 5 (distributed data...
Page 98: Described
task listing accessing, 15 Add IP Address, 36 best practices, 17 Add iSCSI Initiator, 49 feature list, 13 Array Accelerator Settings, 59 icons, 91 Assign Portals, 46 overview, 13 Canonical Target CHAP Settings, 54, 55 descriptions, 25 Clear Conﬁguration, 62 SMU hard drive Create Array, 39...
Page 99 View tab described, 19 websites page description, 19 , 1 1 viewing component information, 67 documentation, 9 viewing options, 20 Storage, 9 viewing system event log, 22 HP Subscriber's Choice for Business, 1 1 viewing system status alerts, 21 product manuals, 9 VLAN Wizard tab...

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HP StorageWorks 1510i - Modular Smart Array User Manual

About this Guide

Overview

Page Description

Conﬁgure

Wizards

Diagnose

Update

A Storage Overview

B Icon Descriptions