Related Manuals for EMC CX700
Summary of Contents for EMC CX700
- Page 1 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems CONFIGURATION PLANNING GUIDE P/N 300-001-273 REV A04 EMC Corporation Corporate Headquarters : Hopkinton, MA 01748 -9103 -508 -435 -1000 www.EMC.com...
- Page 2 , EMC, CLARiiON, Navisphere, PowerPath, and Symmetrix are registered trademarks and Access Logix, FLARE, MirrorView, Powerlink, SAN Copy, SnapView, and TimeFinder are trademarks of EMC Corporation. All other trademarks used herein are the property of their respective owners. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 3: Table Of Contents
Disk Striping................2-2 Mirroring..................2-2 RAID Groups and LUNs ............2-3 RAID Types..................2-4 RAID 5 Group (Individual Access Array) ......2-4 RAID 3 Group (Parallel Access Array)........2-5 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 4 MirrorView Planning Worksheet......... 4-15 What Is MirrorView/A? ............... 4-17 MirrorView/A Example............4-18 MirrorView/A Features and Benefits ......... 4-19 MirrorView/A Planning Worksheets ......... 4-22 What Is EMC SAN Copy? ............4-24 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 5 Fibre Channel Front-End Hardware Planning Worksheets ..6-12 Chapter 7 iSCSI Configuration Storage System iSCSI Data Port Worksheet ....... 7-2 iSCSI Initiator Port Worksheet ............. 7-3 Index ..........................i-1 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 6 Contents EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 7 Sample SAN Copy Over IP Configuration ..........4-29 Sample Shared Switched Storage Configuration ........5-3 Unshared Direct Storage System ..............5-5 Types of Fibre Channel Storage-System Installations ......6-2 CX700 Storage System .................. 6-4 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 8 Contents Shared Storage Systems ................6-5 Disks and Their IDs ..................6-7 viii EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 9: Preface
After reading this guide, you will be able to Determine the best storage-system components for your installation Determine your site requirements Configure storage systems correctly EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 10 A note presents information that is important, but not hazard-related. CAUTION A caution contains information essential to avoid data loss or damage to the system or equipment. The caution may apply to hardware or software. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 11 Your suggestions will help us continue to improve the accuracy, organization, and overall quality of the user publications. Please send a message to techpub_comments@EMC.com with your opinions of this guide. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 12 Preface EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 13: About Cx300, Cx500, Cx500I, And Cx700 Storage Systems
Invisible Body Tag About CX300, CX500, CX500i, and CX700 Storage Systems This chapter introduces CLARiiON® CX300, CX500, CX500i, and CX700 disk-array storage systems and storage area networks (SANs). Major sections are Introducing CX300, CX500, CX500i, and CX700 Storage Systems..................1-2 Fibre Channel..................1-4 iSCSI ....................1-10... -
Page 14: Introducing Cx300, Cx500, Cx500I, And Cx700 Storage Systems
Two types of DAE2s are available: a standard DAE2 version with high-performance Fibre Channel disks a DAE2-ATA version with economical ATA (Advanced Technology Attachment) disks. Figure 1-1 shows a typical CX700 storage system. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 15: Cx700 Storage System
About CX300, CX500, CX500i, and CX700 Storage Systems Rackmount Cabinet DAE2s EMC2737 CX700 Storage System Figure 1-1 A storage-system package includes storage management software, Fibre Channel interconnect hardware, and one or more storage systems. The host bus adapter driver hardware and software are available from outside vendors. -
Page 16: Fibre Channel
Figure 1-2 shows a node and initiator. Server Adapter (Initiator) Node Storage System (Target) Connection Node EMC1802 Nodes - Initiator and Target Figure 1-2 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 17: Fibre Channel Storage Components
Fibre Channel switches. The maximum length of optical cable between a CX300, CX500, and CX700 storage system and a server or switch ranges from 150 to 500 meters (165 to 550 yards), depending on the type of cable and operating speed. -
Page 18: Switch And Point-To-Point Connections
(initiator). The current connection limits are outlined in Table 1-2. Connection Limits Table 1-2 Maximum HBA Ports Maximum HBA Ports Storage System per SP per Storage System CX300 CX500 CX700 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 19: A Switch Zone
About CX300, CX500, CX500i, and CX700 Storage Systems In Figure 1-4, Server 1 has access to one SP in storage systems 1 and 2; it has no access to any other SP. Server 1 Server 2 Server 3 Zone Switch... -
Page 20: Storage Component (Storage System Enclosures)
Table 1-3 lists the number of ports per SP for each system. Number of Storage System Ports per SP Table 1-3 Storage System Front End Ports Back End Ports CX300 CX500 CX700 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 21 About CX300, CX500, CX500i, and CX700 Storage Systems The front-end ports communicate with switches or servers and the back-end ports communicate with disks. Hardware details appear later in Chapter 6. Fibre Channel...
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Page 22: Iscsi
LAN components: LAN cables and LAN devices such as switches and routers. Target components: storage systems with storage processors, power supply, cooling hardware, and disks. 1-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 23: Initiator Components
About CX300, CX500, CX500i, and CX700 Storage Systems Initiator Components The network interface card (NIC) or host bus adapter (HBA) is a printed-circuit board that slides into an I/O slot in the server’s cabinet. It transfers data between server memory and one or more storage systems over the LAN using the iSCSI protocol. -
Page 24: Target Components
(DPE2). Each CX500i (DPE2) has two SPs, each with two 1-gigabit iSCSI ports. The iSCSI front-end (data) ports communicate with switches or servers and the Fibre Channel back-end ports communicate with disks. 1-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 25: Types Of Storage-System Installations
About CX300, CX500, CX500i, and CX700 Storage Systems Types of Storage-System Installations You can use a storage system in any of several types of installation: Unshared direct with one server is the simplest and least costly. Shared-or-clustered direct, with a limit of two servers, lets two servers share storage resources with high availability. -
Page 26: About Switched Shared Storage And Sans (Storage Area Networks)
Components of a SAN Figure 1-10 Fibre Channel switches can control data access to storage systems through the use of switch zoning, explained earlier on page 1-6. 1-14 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 27: Storage Groups
About CX300, CX500, CX500i, and CX700 Storage Systems However, switch zoning cannot selectively control data access to LUNs in a storage system, because each SP appears as a single Fibre Channel device to the switch fabric. So switch zoning can prevent or allow communication with an SP, but not with specific disks or LUNs attached to an SP. -
Page 28: Sample Shared Storage Configuration
LUNs on the storage system. Therefore, it cannot access or modify data on LUNs that are not part of its Storage Group. However, you can define a Storage Group as 1-16 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 29: Data Access Control With Shared Storage
About CX300, CX500, CX500i, and CX700 Storage Systems sharable (accessible by more than one server), if, as shown above in Figure 1-11, the servers run cluster software. Figure 1-12 shows access control through Storage Groups. Each server has exclusive read and write access to its designated Storage Group. - Page 30 To plan LUNs and file systems, go to Chapter 5. For details on the storage-system hardware, go to Chapter 6. For worksheets and a description of iSCSI configurations, go to Chapter 7. 1-18 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 31: Raid Types And Trade-Offs
RAID Types and Trade-offs This chapter explains the RAID types you can choose for your storage-system LUNs. If you already know about RAID types and know which ones you want, you can skip this background information and go to the LUN planning chapter (Chapter 5). Major sections are Introducing RAID ................2-2 RAID Types ..................2-4... -
Page 32: Introducing Raid
With a storage system, you can create a hardware mirror by binding disks as a RAID 1 mirrored pair or a RAID 1/0 Group (a mirrored RAID 0 Group); the hardware will then mirror the disks automatically. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 33: Raid Groups And Luns
RAID Types and Trade-offs With a LUN of any RAID type, a storage system can maintain a remote copy using the optional MirrorView or MirrorView/Asynchronous data replication software. This software, primarily useful for disaster recovery, is explained in Chapter 4. RAID Groups and LUNs Some RAID types let you create multiple LUNs on one RAID Group. -
Page 34: Raid Types
Notice that the disk block addresses in the stripe proceed sequentially from the first disk to the second, third, and fourth, then back to the first, and so on. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 35: Raid 3 Group (Parallel Access Array)
RAID Types and Trade-offs Stripe Blocks First Disk Stripe Parity 0-127 512-639 1024-11511536-1663 Element … Size Second Disk 128-255 640-767 1152-1279 2048-2175 Parity … Third Disk Parity 256-383 768-895 1664-1791 2176-2303 … Stripe Size Fourth Disk User Data Parity 384-511 1280-1407 1792-1919 2304-2431 …... -
Page 36: Raid 3 Group
RAID 3, RAID 3 is more flexible than in previous releases, and can handle some level of concurrency. A RAID 3 Group works well for applications that use I/Os of blocks 64 Kbytes and EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 37: Raid 1 Mirrored Pair
RAID Types and Trade-offs larger. By using both the read and write cache, a RAID 3 group can handle several concurrent streams of access. RAID 3 Groups do not require any special buffer area. No fixed memory is required to use write cache with RAID 3. Simply allocate write cache as you would for RAID 5, and ensure that caching is turned on for the LUNs in the RAID 3 Groups. -
Page 38: Raid 1/0 Group (Mirrored Raid 0 Group)
(first and fourth disks) to the second mirrored disks (second and fifth disks), to the third mirrored disks (third and sixth disks), and then from the first mirrored disks, and so on. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 39 RAID Types and Trade-offs Stripe First Disk of Primary Image Blocks Stripe 0-127 384-511 768-895 1152-1279 1536-1663 Element … Size Second Disk of Primary Image 128-255 512-639 896-1023 1280-1407 1664-1791 Stripe … Size Third Disk of Primary Image 256-383 640-767 1024-1151 1408-1535 1792-1919...
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Page 40: Raid 0 Group (Nonredundant Array)
You can create one LUN per individual disk unit. If you want to apportion the disk space, you can do so using partitions, file systems, or user directories. 2-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 41: Hot Spare
If you use hot spares of different sizes, the storage system will automatically use the hot spare of the proper size in place of a failed disk. An example of hot spare usage for a CX700 storage system follows. 2-11 RAID Types... -
Page 42: How A Hot Spare Works
System operator replaces failed module 3 with a functional module. Once again, RAID 5 Group consists of modules 0-4 and the hot spare is 14. EMC2432 How a Hot Spare Works Figure 2-6 2-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 43: Raid Benefits And Trade-Offs
RAID Types and Trade-offs RAID Benefits and Trade-offs This section reviews RAID types and explains their benefits and trade-offs. You can bind disks into seven types of logical units (LUNs): RAID 5 Group (individual access array) RAID 3 Group (parallel access array) RAID 1 mirrored pair RAID 1/0 Group (mirrored RAID 0 Group);... -
Page 44: Performance
RAID 5 LUN. We do not recommend using RAID 3 in the same storage-system chassis with RAID 5 or RAID 1/0. 2-14 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 45: Storage Flexibility
RAID Types and Trade-offs A RAID 1 mirrored pair has its disks locked in synchronization, but the SP can read data from the disk whose read/write heads are closer to it. Therefore, RAID 1 read performance can be twice that of an individual disk while write performance remains the same as that of an individual disk. -
Page 46: Data Availability And Disk Space Usage
For a LUN in any RAID Group, you can provide for disaster recovery by establishing a remote mirror at a distant site. Figure 2-7 illustrates RAID type disk space usage. 2-16 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 47: Disk Space Usage In The Raid Configuration
RAID Types and Trade-offs RAID 0 Group RAID 5 Group RAID 3 Group (Nonredundant Array) 1st Disk 1st Disk 1st Disk User and Parity Data User Data User Data 2nd Disk 2nd Disk 2nd Disk 100% User Data User and Parity Data User Data User Data 3rd Disk... -
Page 48: Guidelines For Raid Groups
Speed of write access is important and write activity is heavy. Use a RAID 1/0 Group (mirrored nonredundant array) for applications where Data availability is critically important. Overall performance is very important. 2-18 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 49 RAID Types and Trade-offs Use a RAID 0 Group (nonredundant individual access array) for applications where High availability is not important. You can afford to lose access to all data stored on a LUN if a single disk fails. Overall performance is very important. Use an individual unit for applications where High availability is not important.
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Page 50: Sample Applications For Raid Types
RAID 5 Group, and then, during off-peak hours, copy the updates to the database on the RAID 5 Group. 2-20 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 51: Raid 1/0 Group
RAID Types and Trade-offs RAID 0 Group (nonredundant individual access array) — Use a RAID 0 Group where the best overall performance is important. A RAID 0 Group (like a RAID 5 Group) requires a minimum of three disks. A RAID 0 Group is useful for applications using short-term data to which you need quick access. - Page 52 RAID Types and Trade-offs 2-22 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 53: Chapter 3 Storage-System Management
Invisible Body Tag Storage-System Management This chapter describes the storage-system management ports, asks you to fill out a management port worksheet, and describes applications you can use to manage storage systems from servers. Major sections are Management Ports ................3-2 Navisphere Management Suites ............3-4 Using Navisphere Software..............3-6 Storage-System Management... -
Page 54: Management Ports
The subnet mask for the LAN to which the storage system is connected for management. For example, 255.255.255.0. Gateway The gateway address for the LAN to which the storage-system management port is connected. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 55 Storage-System Management Use the Management Ports - Login Information section to record the username and password to login to each management port. Your network administrator may provide these. If not, then you need to create one or both. Username A valid username for the management interface must start with a letter and may contain 1 to 32 letters and numbers.
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Page 56: Navisphere Management Suites
Group, you select the LUNs it contains. If multiple servers are connected to a storage system, you should connect them to different Storage Groups, unless they are part of a cluster. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 57: Navisphere Manager
Storage-System Management Navisphere Manager Navisphere Manager (called Manager) lets you manage multiple storage systems on multiple servers simultaneously. It includes an Event Monitor that checks storage systems for fault conditions and can notify you and/or customer service if any fault condition occurs. With Manager you can create RAID groups, LUNs, and Storage Groups, manipulate caches, examine storage-system status and logged events, transfer control from one SP to another, and examine... -
Page 58: Using Navisphere Software
The 13 servers that use the storage may be connected to the same or a different network, but the intranet shown is the one used to manage the storage systems. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 59: Storage Domains On The Internet
Storage-System Management Server Server Server Server Server Server Switch Fabric Switch Fabric Switch Fabric Switch Fabric Server Storage Storage Storage System System Storage System Storage System System Domain 1 - U.S. Division Internet Browser Domain 2 - European Division Storage Storage Storage System... -
Page 60: Navisphere Management Worksheet
Storage System Name ___________________________________ Domain Name ___________________________________ Storage System Name ___________________________________ Domain Name ___________________________________ Storage System Name ___________________________________ Domain Name ___________________________________ Storage System Name ___________________________________ Domain Name ___________________________________ EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 61 Storage-System Management Sample Storage Management Worksheet for Navisphere cpcnyc1 Windows Server 2003 Server Name Operating System Navisphere Workgroup Navisphere Departmental Navisphere Enterprise Navisphere Analyzer hwdeng1 nychwd Storage System Name Domain Name hwdeng2 nychwd Storage System Name Domain Name Storage System Name ___________________________________ Domain Name ___________________________________ Storage System Name ___________________________________ Domain Name ___________________________________...
- Page 62 Storage-System Management 3-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 63: Data Mobility Software
MirrorView/Asynchronous ™ software) and the EMC data mobility software (SAN Copy software) for the CX500 and CX700 storage systems. These software applications allow you to create copies of logical units (LUNs). This chapter refers to the EMC MirrorView/Asynchronous software as MirrorView/A. -
Page 64: Data Replication And Data Mobility Software Overview
For a full copy, SAN Copy must be installed on either the storage system with the source logical unit or the storage system with the target logical unit. For an incremental copy, SAN Copy must be installed on the storage system with the source logical unit. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 65: What Is Snapview
Data Replication and Data Mobility Software What Is SnapView? SnapView is storage-system-based software that allows you to create a copy of a LUN by using either clones or snapshots. A clone (BCV) is an actual copy of a LUN and takes time to create, depending on the size of the source LUN. -
Page 66: Clones Example
LUN records information that identifies these writes. Second Production Host Host Continuous I/O Storage System Source Fractured Clone LUN EMC2438 Clones Example Figure 4-1 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 67: Snapshots Overview And Example
Data Replication and Data Mobility Software Snapshots Overview and Example A snapshot is a virtual LUN that allows a second host to view a point-in-time copy of a source LUN. You determine the point in time when you start a SnapView session. The session keeps track of how the source LUN looks at a particular point in time. -
Page 68: Snapshot Example
LUN and the reserved LUN in the SP’s LUN pool Production Second Host Host Continuous Storage System Source Snapshot EMC2764 Snapshot Example Figure 4-2 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 69: Clone And Snapshot Trade-Offs
Data Replication and Data Mobility Software Clone and Snapshot Trade-offs The following table describes the benefits and trade-offs of using clones, snapshots, and snapshots of clones. Table 4-2 A Comparison of Clones and Snapshots Clones Snapshots Snapshots of Clones Benefits •... -
Page 70: Snapview Worksheets
Clone Planning Worksheet Source Production Host Application, File System, or Database Name LUN ID Storage Group ID Size (Gbytes) Name EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 71 Data Replication and Data Mobility Software Snapshot Planning Worksheet For each SnapView session, you must complete a snapshot session worksheet. Note that you must assign the LUN and snapshot to different Storage Groups. One Storage Group must include the production host and source LUN; another Storage Group must include the second host and the snapshot.
- Page 72 Reserved LUN Pool Parent RAID Group (Gbytes) binding) This worksheet is also provided in the MirrorView/A and incremental SAN Copy sections. EMC recommends 20% of the source LUN size. 4-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 73: What Is Mirrorview
Data Replication and Data Mobility Software What Is MirrorView? EMC MirrorView is storage-system-based software that maintains a copy of an image of a logical unit (LUN) at separate locations. The images are far enough apart to provide for disaster recovery, that is, to let one image continue if a serious accident or natural disaster disables the other. -
Page 74: Sample Mirrorview Configuration
Storage Group Storage Group Accounts Server Database Server Storage Group Storage Group Secondary Images (Primary Images) Storage system 1 Storage system 2 EMC2000a Sample MirrorView Configuration Figure 4-3 4-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 75: Mirrorview Features And Benefits
Data Replication and Data Mobility Software MirrorView Features and Benefits MirrorView mirroring adds value to customer systems by offering the following features: Provision for disaster recovery with minimal overhead CLARiiON environment Bidirectional (cross) mirroring Integration with EMC SnapView LUN snapshot and clone copy software CLARiiON Environment MirrorView operates in a highly available environment, leveraging... - Page 76 4-14 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 77: Mirrorview Planning Worksheet
Data Replication and Data Mobility Software MirrorView Planning Worksheet The following two worksheets help you plan your remote mirrors. The first worksheet is for remote mirror planning, and the second is for the optional write intent log planning. You must assign each primary image LUN to a Storage Group (as with any normal LUN), but you must not assign a secondary image LUN to a Storage Group. - Page 78 LUNs of at least 128 Mbytes for the write intent log. Optional Write Intent Log Worksheet LUN Size LUN Name or ID (128 Mbytes minimum) First LUN Second LUN 4-16 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 79: What Is Mirrorview/A
Data Replication and Data Mobility Software What Is MirrorView/A? MirrorView/A is storage-system-based software for periodically updating remote copies of production data. It keeps a point-in-time copy of a logical unit (LUN) and periodically replicates the copy to a separate location to provide disaster recovery; that is, to let one image continue to be active if a serious accident or natural disaster disables the other. -
Page 80: Mirrorview/A Example
SPs are still connected as shown.) This server can also run applications that access other data stored on Storage System 2. 4-18 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 81: Mirrorview/A Features And Benefits
Data Replication and Data Mobility Software Highly available cluster Database Accounts Database File Server Mail Server Server 1 Server Server 2 Operating Operating Operating Operating Operating system A system B system A system A system B FC Switch FC Switch FC Switch FC Switch Extended Distance Connections... - Page 82 SnapView in conjunction with MirrorView/A to create a snapshot of a secondary image on a secondary storage system to perform data verification and run parallel processes. 4-20 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 83 Data Replication and Data Mobility Software Before taking a snapshot, make sure that the secondary LUN is in a normal condition and not updating. A snapshot of a secondary LUN when MirrorView/A is updating the secondary will not give consistent data. To provide for disaster recovery, the primary and secondary storage systems should be geographically separated.
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Page 84: Mirrorview/A Planning Worksheets
Storage Group Secondary Production Size, and File Number or Remote Mirror Secondary Image Group Name Host Name System Name Name (A/B) Name Host Name LUN ID (if applicable) 4-22 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 85 Data Replication and Data Mobility Software Since MirrorView/A uses the reserve LUN pool, you need the following information for system setup so you can bind LUNs for the reserved LUN pool. The number of reserved LUNs should always be twice the number of source LUNs. A MirrorView/A primary image LUN is a source LUN.
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Page 86: What Is Emc San Copy
(see Implementing SAN Copy Over Extended Distances on page 4-28). SAN Copy runs in the SPs of a CX400, CX500, CX600, CX700, or FC4700 - Series storage system (called a SAN Copy storage system), and not on the host servers connected to the storage systems. As a result, the host processing resources are free for production applications while the SPs copy data. - Page 87 Data Replication and Data Mobility Software For full and incremental sessions, the source and destination logical units must be the same size, or the destination logical unit must be larger. for use by the same operating system. owned by the same SP, for a copy within one storage system. In addition, for full sessions: The source and destination logical units must be inactive (offline and/or unmounted) during the copy process.
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Page 88: San Copy Example
LUN 14 Volume 32 FC5300 LUN 15 Volume 33 Storage System CX600 Symmetrix Storage System Storage System EMC2448 Sample SAN Copy Sessions Between Storage Systems Figure 4-5 4-26 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 89: San Copy Features And Benefits
Data Replication and Data Mobility Software SAN Copy Features and Benefits SAN Copy adds value to customer systems by offering the following features: Storage-system-based data mover application that offloads the host, thereby improving host performance Software that you can use in conjunction with replication software, allowing I/O with the source logical unit to continue during the copy process Simultaneous sessions that copy data to multiple CLARiiON and... -
Page 90: Implementing San Copy Over Extended Distances
FC-IP converters. Depending on the direction of the data transfer, the FC-to-IP converter either converts Fibre Channel data to IP data or IP data to Fibre Channel data. 4-28 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 91: Sample San Copy Over Ip Configuration
Data Replication and Data Mobility Software Server Server FC-IP FC-IP IP Network Converter Converter Switch Fabric Switch Fabric Destination LUN Source LUN Source LUN Destination LUN SAN Copy Storage System Remote Storage System EMC2694 Figure 4-6 Sample SAN Copy Over IP Configuration 4-29 What Is EMC SAN Copy? -
Page 92: San Copy Planning Worksheet
SP must own the logical units. SAN Copy Worksheet for A Session Within Storage System Session Name: Source Storage-System Name: Source Logical Unit Name: Destination Logical Unit Names: 4-30 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 93 Data Replication and Data Mobility Software Incremental SAN Copy uses the reserve LUN pool, so if you want to use this type of SAN Copy, you need the following information for system setup so you can bind LUNs for the reserved LUN pool. The number of reserved LUNs should always be twice the number of source LUNs.
- Page 94 Data Replication and Data Mobility Software 4-32 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 95: Planning File Systems And Luns
Invisible Body Tag Planning File Systems and LUNs This chapter shows sample installations with shared switched and unshared direct storage, and then provides worksheets for planning your own storage installation. Major sections are Multiple Paths to LUNs ..............5-2 Sample Shared Switched Installation..........5-2 Sample Unshared Direct Installation ..........5-5 Planning Applications, LUNs, and Storage Groups .....5-6 Planning File Systems and LUNs... -
Page 96: Multiple Paths To Luns
Note that Figure 5-1 shows a single-cabinet storage system. You can configure a storage system with two cabinets so that all the disks in EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 97: Sample Shared Switched Storage Configuration
Planning File Systems and LUNs the first cabinet reside on loop 0 (so all the disk IDs in the first cabinet begin with 0) and the disks in the second cabinet are on loop 1 (so their disk IDs begin with 1). Highly Available Cluster Database Server (DS) File Server (FS) - Page 98 100, 101, 102 – Hot spare (automatically replaces a failed disk in any server’s LUN) Note: The available storage is 50% for a RAID 1 LUN and 80% for a 5-disk RAID 5 LUN. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 99: Sample Unshared Direct Installation
Planning File Systems and LUNs Sample Unshared Direct Installation This section shows the disks and LUNs in an unshared direct storage-system installation. Server SP A SP B 100-1014 Specs Specs 000-0014 Dbase1 Dbase2 Mail EMC2404 Unshared Direct Storage System Figure 5-2 The example below describes a storage system with two back-end loops. -
Page 100: Planning Applications, Luns, And Storage Groups
Make as many copies of each blank worksheet as you need. You will need this information later when you configure the storage system(s). Sample worksheets appear later in this chapter. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 101: Application And Lun Planning
Planning File Systems and LUNs Application and LUN Planning Use the following worksheet to list the applications you will run, and the RAID type and size of LUN to hold them. For each application that will run, write the application name, file system (if any), RAID type, LUN ID (ascending integers, starting with 0), disk space required, and finally the name of the servers and operating systems that will use the LUN. - Page 102 Server hostname and operating system. Enter the server hostname (or, if you don’t know the name, a short description that identifies the server) and the operating system name, if you know it. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 103: Lun And Storage Group Planning Worksheet
DAE2 enclosures for a total of 60 disks; a CX500/CX500i storage system can include up to seven DAE2 enclosures for a total of 120 disks; a CX700 storage system can include up to l6 DAE2 enclosures for a total of 240 disks. Unshared storage systems do not use Storage Groups. - Page 104 LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ 5-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 105 Planning File Systems and LUNs LUN and Storage Group Worksheet for CX700 - Single Cabinet DAE2 DAE2 DAE2 DAE2 Loop 3 DAE2 enclosures Loop 2 DAE2 enclosures Loop 1 enclosures DAE2 Loop 0 DAE2 enclosures Vault disks Storage-system number or name:_______________ Storage Group ID or name:______ Server hostname:_________________ LUN ID or name_______RAID type ___ Cap.
- Page 106 LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ LUN ID or name_______RAID type ___ Cap. (Gb) _____ Disk IDs_____________________________________ 5-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 107 Disk Configuration Rules and Recommendations The following rules and recommendations apply to CX300, CX500, CX500i, and CX700 systems: You cannot use any of the disks 000 through 004 (enclosure 0, loop 0, disks 0-4) as a hot spare in a CX-Series system.
- Page 108 LUN worksheets follow. Complete as many blank worksheets as needed for all LUNs in storage systems. For unshared storage, skip the Storage Group entries. 5-14 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 109: Lun Details Worksheet
Planning File Systems and LUNs LUN Details Worksheet Storage system (complete this section once for each storage system) Storage-system number or name:______ Storage-system installation type Unshared Direct o Shared-or-Clustered Direct Shared Switched SP information: SP A: IP address or hostname:_______Port ALPA ID:_____ Memory (Mbytes):______ SP B: IP address or hostname:________Port ALPA ID:_____ Memory (Mbytes)____ Caching Read cache:____% Write cache: ____%... - Page 110 2 Gbytes of memory. Each CX500/CX500i SP has a minimum of 2 Gbytes and maximum of 4 Gbytes of memory. Each CX700 SP has a minimum of 4 Gbytes and maximum of 8 Gbytes of memory. Caching. You can use SP memory for read/write caching or RAID 3.
- Page 111 Each CX500/CX500i SP supports two physical loops that are paired with its counterpart SP to create four redundant loops (loop 0 and 1). Each CX700 SP supports four physical loops that are paired with its counterpart SP to create eight redundant loops (loop 0, 1, 2, and 3).
- Page 112 If this is a RAID 3 Group, specify the amount of SP memory for that group. To work efficiently, each RAID 3 Group needs at least 6 Mbytes of memory. 5-18 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 113 Planning File Systems and LUNs Caching. If you want to use caching (entry on page 5-16), you can specify the type of caching you want — read and write, read, or write for this LUN. Generally, write caching improves performance far more than read caching. The ability to specify caching on a LUN basis provides additional flexibility, since you can use caching for only the units that will benefit from it.
- Page 114 Hot spare Caching: Read and write Write Read None Servers that can access this LUN’s Storage Group: Server1 Operating system information: Device name: File system, partition, or drive: 5-20 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 115 Planning File Systems and LUNs What Next? If you have completed the worksheets to your satisfaction, you are ready to learn about the hardware needed for these systems as explained in Chapter 6. For worksheets and a description of iSCSI configurations, go to Chapter 7.
- Page 116 Planning File Systems and LUNs 5-22 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 117: Storage-System Hardware
Storage-System Hardware This chapter describes the storage-system hardware components. Major sections are Storage-System Installation Types...........6-2 Hardware for CX300, CX500, CX500i, and CX700 Storage Systems..................6-3 Planning Your Hardware Components ..........6-8 Hardware Dimensions and Requirements ........6-9 Cabinets for Enclosures..............6-10 Fibre Channel Data Cable and Configuration Guidelines ..6-11 Fibre Channel Front-End Hardware Planning Worksheets ..6-12... -
Page 118: Storage-System Installation Types
SP B SP B Component Storage System Storage System Storage System Storage System Storage System Path 1 Path 2 EMC1826a Figure 6-1 Types of Fibre Channel Storage-System Installations EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 119: Hardware For Cx300, Cx500, Cx500I, And Cx700 Storage Systems
Table 1-1 on page 1-2 outlines each storage-system enclosure and disk capacity. Storage Hardware A CX300, CX500, and CX500i DPE2 or a CX700 SPE enclosure is a sheet-metal housing with a front door, midplane, and slots for the two storage processors (SPs), two power supplies, and fan modules. -
Page 120: Cx700 Storage System
DAE2 Standby Power Supply B (SPS B) Mounting Tray with Standby Power Supplies Standby Power (Behind the Bezel) Supply A (SPS A) EMC2381 CX700 Storage System Figure 6-2 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 121: Storage Processor (Sp)
A CX300 DPE2 SP has two front-end ports and one back-end port; a CX500/CX500i DPE2 SP has two front-end ports and two back-end ports; a CX700 SPE SP has four front-end ports and four back-end ports. For CX500i storage systems, each SP has two iSCSI front-end ports... - Page 122 Each iSCSI port connects to a Gigabit Ethernet port on a network device such as a switch or router, or directly to an initiator iSCSI port on an HBA or NIC. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 123: Disks
Disks with IDs 000 through 004 must be Fibre Channel disks. For a CX300 or a CX500/CX500i storage system, the slots for these disks are in the DPE2. For a CX700 storage system, the slots for these disks must be in a standard DAE2 and not a DAE2-ATA. -
Page 124: Planning Your Hardware Components
The minimum hardware required for unshared direct storage is one server with two host bus adapters and one storage system with two SPs. You can choose more storage systems (up to four are allowed). EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 125: Hardware Dimensions And Requirements
Storage-System Hardware Hardware Dimensions and Requirements The DPE2, SPE and SPS units, DAE2s, and switches require the following amounts of space and power in a standard 19-inch cabinet. CX300, CX500, CX500i, and CX700 Hardware Dimensions and Table 6-1 Requirements Device... -
Page 126: Cabinets For Enclosures
The cabinets require 200–240 volts ac at 50/60 Hz, and include two to four power strips with compatible outlets. Plug options are L6–30P and IEC 309 30 A. Filler panels of various sizes are available. 6-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 127: Fibre Channel Data Cable And Configuration Guidelines
Storage-System Hardware Fibre Channel Data Cable and Configuration Guidelines CX300, CX500, and CX700 storage systems require optical cable between servers, switches, and SPs. The cabling between SPE or DPE2 and DAE2 enclosures is copper. EMC standard multimode optical configurations use 50 micron cable. -
Page 128: Fibre Channel Front-End Hardware Planning Worksheets
Path 3 Not Cabled SP A Path 4 Not Cabled EMC2449 Note: The cable identifiers apply to all storage systems, and are described on the following worksheet. 6-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 129 ,Optical: Number:____ ..............Length________m or ft Cables between switch ports and storage-system SP ports - Cable D Cable D CX300/500, up to 2/SP; CX700, up to 4/SP, Optical:Number:_____ Length________m or ft Cable D CX300/500, up to 2/SP; CX700, up to 4/SP, Optical:Number:_____ Length________m or ft...
- Page 130 Switch and Storage System DAE2 DAE2 DAE2 Path 1 SP B Path 2 SPE or DPE2 Path 3 Not Cabled SP A Path 4 Not Cabled EMC2436 6-14 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 131 Cable D CX300/500, up to 2/SP; CX700, up to 4/SP, Optical:Number:__ ___ Length__ ____m or ft CX300/500, up to 2/SP; CX700, up to 4/SP, Optical: Number:_____ Length________m or ft Cable D Cables between enclosures Cable F (Copper, 1.0 m): Number (2 per DAE): ___...
- Page 132 Storage-System Hardware 6-16 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 133: Iscsi Configuration
Invisible Body Tag iSCSI Configuration This chapter provides worksheets for configuring iSCSI initiator servers and iSCSI target storage systems in IP networks using the iSCSI protocol. This chapter contains the following major sections: Storage System iSCSI Data Port Worksheet ........7-2 iSCSI Initiator Port Worksheet ............7-3 CX500i storage systems (targets) connect to iSCSI NICs or HBAs (initiators) through internet SCSI (iSCSI) interfaces. -
Page 134: Storage System Iscsi Data Port Worksheet
The subnetwork mask for the LAN subnet to which the 1-gigabit iSCSI data port is connected. Default Gateway for LAN The default gateway address for the LAN to which the 1-gigabit iSCSI data port is connected. EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... -
Page 135: Iscsi Initiator Port Worksheet
iSCSI Configuration iSCSI Initiator Port Worksheet Port Identifier Record an identifier for the port. IP Address for iSCSI Initiator Port The network IP (Internet Protocol) address of the initiator port. Subnet Mask for iSCSI Initiator Port The subnet mask for the LAN to which the initiator port is connected. Default Gateway for iSCSI Initiator Port The default gateway address for the LAN to which the initiator port is connected. - Page 136 Configuration EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
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Page 137: Index
(BCVs), see clone DAE2 (2-gigabit disk-array enclosure) ATA 1-2, 6-7 cabinets for rackmount storage systems 6-10 dimensions and weight 6-9 standard 1-2, 6-7 types of 1-2, 6-7 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide... - Page 138 DPE2 (Disk Processor Enclosure, 2-Gbit) defined 2-11 dimensions and weight 6-9 restrictions 5-14 statistics 6-9 sample applications 2-21 dual paths to LUNs 5-2 when to use 2-19 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 139 4-11 defined 1-10 high availability 4-14 iSCSl integration with SnapView 4-14 adapter 1-11 planning worksheet 4-15 primary image 4-11 remote mirroring, promotion 4-12 secondary image, promotion 4-12 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 140 SP ALPA ID 5-16 power requirements, storage system 6-9 primary image MirrorView 4-11 SAN Copy MirrorView/A 4-17 benefit 4-27 benefits 4-27 example of 4-26 planning worksheets 4-30 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 141 2-11 IP address 5-16 volume name 5-19 port ALPA ID 5-16 storage-system cache size 5-16 SPE (Storage Processor Enclosure) components 6-3 weight, storage system 6-9, 6-10 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...
- Page 142 CHAP worksheet 7-3 iSCSI port worksheet 7-2 LUN 5-7, 5-14 management port worksheet 3-2 MirrorView 4-15 MirrorView/A 4-22 SAN Copy 4-30 SnapView 4-8 write cache 6-6 zone, switch 1-6 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide...