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IBM SAN Volume Controller 2145-DH8 Introduction and Implementation

Book Description

Data is the new currency of business, the most critical asset of the modern organization. In fact, enterprises that can gain business insights from their data are twice as likely to outperform their competitors; yet, 72 percent of them have not started or are only planning big data activities. In addition, organizations often spend too much money and time managing where their data is stored. The average firm purchases 24% more storage every year, but uses less than half of the capacity it already has.

A member of the IBM® Storwize® family, IBM SAN Volume Controller (SVC) Data Platform is a storage virtualization system that enables a single point of control for storage resources to help support improved business application availability and greater resource utilization. The objective is to manage storage resources in your IT infrastructure and to make sure they are used to the advantage of your business, and do it quickly, efficiently, and in real time, while avoiding increases in administrative costs.

Virtualizing storage with SVC Data Platform helps make new and existing storage more effective. SVC Data Platform includes many functions traditionally deployed separately in disk systems. By including these in a virtualization system, SVC Data Platform standardizes functions across virtualized storage for greater flexibility and potentially lower costs.

SVC Data Platform functions benefit all virtualized storage. For example, IBM Easy Tier® optimizes use of flash storage. And IBM Real-time Compression™ enhances efficiency even further by enabling the storage of up to five times as much active primary data in the same physical disk space. Finally, high-performance thin provisioning helps automate provisioning. These benefits can help extend the useful life of existing storage assets, reducing costs.

Integrating these functions into SVC Data Platform also means that they are designed to operate smoothly together, reducing management effort.

In this IBM Redbooks® publication, we discuss the latest features and functions of the SVC 2145-DH8 and software version 7.3, implementation, architectural improvements, and Easy Tier.

Table of Contents

  1. Front cover
  2. Notices
    1. Trademarks
  3. Preface
    1. Authors
    2. Now you can become a published author, too!
    3. Comments welcome
    4. Stay connected to IBM Redbooks
  4. Chapter 1. Introduction to IBM storage virtualization
    1. 1.1 Storage virtualization terminology
    2. 1.2 Requirements driving storage virtualization
      1. 1.2.1 Benefits of using IBM SAN Volume Controller
    3. 1.3 SAN Volume Controller architecture
      1. 1.3.1 SAN Volume Controller conceptual model
      2. 1.3.2 SAN Volume Controller components
    4. 1.4 More information
  5. Chapter 2. Change history
    1. 2.1 Enhancements and changes in SAN Volume Controller V7.3
    2. 2.2 Enhancements and changes in SAN Volume Controller V7.2
    3. 2.3 Enhancements and changes in SAN Volume Controller V7.1
    4. 2.4 Enhancements and changes in SAN Volume Controller V6.4
    5. 2.5 Enhancements and changes in SAN Volume Controller V6.3
    6. 2.6 Enhancements and changes in SAN Volume Controller V6.2
    7. 2.7 Enhancements and changes in SAN Volume Controller V6.1
    8. 2.8 Enhancements and changes in SAN Volume Controller V5.1
  6. Chapter 3. 2145-DH8 and SAN Volume Controller software version 7.3
    1. 3.1 New hardware 2145-DH8
      1. 3.1.1 IBM SAN Volume Controller platform
      2. 3.1.2 I/O connectivity
      3. 3.1.3 Dual boot drives
      4. 3.1.4 Compression Accelerator card
      5. 3.1.5 Technician port
      6. 3.1.6 Expansion enclosure
      7. 3.1.7 Battery backup system
    2. 3.2 Software enhancements
      1. 3.2.1 Cache
      2. 3.2.2 Easy Tier
      3. 3.2.3 IBM Real-time Compression
      4. 3.2.4 FlashCopy
    3. 3.3 Upgrade considerations
      1. 3.3.1 Worldwide names scheme
  7. Chapter 4. Planning and configuration
    1. 4.1 General planning rules
    2. 4.2 Physical planning
      1. 4.2.1 Single rack or dual rack configuration
      2. 4.2.2 Cable connections
    3. 4.3 Logical planning
      1. 4.3.1 Management IP addressing plan
      2. 4.3.2 SAN zoning and SAN connections
      3. 4.3.3 iSCSI IP addressing plan
      4. 4.3.4 IP replication
      5. 4.3.5 Backend storage subsystem configuration
      6. 4.3.6 Real-time Compression
      7. 4.3.7 EasyTier version 3
      8. 4.3.8 SAN Volume Controller clustered system configuration
      9. 4.3.9 Stretched System configuration
      10. 4.3.10 Volume configuration
      11. 4.3.11 Host mapping (LUN masking)
      12. 4.3.12 Advanced Copy Services
      13. 4.3.13 SAN boot support
      14. 4.3.14 Data migration from a non-virtualized storage subsystem
      15. 4.3.15 SAN Volume Controller configuration backup procedure
    4. 4.4 Performance considerations
      1. 4.4.1 SAN
      2. 4.4.2 Disk subsystems
      3. 4.4.3 Cache
      4. 4.4.4 Port configuration
      5. 4.4.5 Performance monitoring
  8. Chapter 5. SAN Volume Controller Easy Tier
    1. 5.1 SVC Easy Tier history
      1. 5.1.1 New features in Easy Tier 3
      2. 5.1.2 Storage Pool Balancing
    2. 5.2 Performance and monitoring considerations
      1. 5.2.1 Considerations for optimal performance
      2. 5.2.2 Monitoring tools
  9. Chapter 6. SAN Volume Controller initial configuration
    1. 6.1 Managing the cluster
      1. 6.1.1 Network requirements for SAN Volume Controller
      2. 6.1.2 Prerequisites
      3. 6.1.3 Initial configuration of the SAN Volume Controller cluster
  10. Chapter 7. Real-time Compression and the SVC 2145-DH8 Node
    1. 7.1 Real-time Compression background, overview, and value proposition
      1. 7.1.1 The solution: IBM Real-time Compression
      2. 7.1.2 Common use cases
    2. 7.2 IBM Real-time Compression technology
      1. 7.2.1 Random Access Compression Engine
      2. 7.2.2 RACE in SAN Volume Controller software stack
      3. 7.2.3 Data write flow
      4. 7.2.4 Data read flow
      5. 7.2.5 Compression of existing data
    3. 7.3 SVC 2145-DH8 node software and hardware updates that enhance Real-time Compression
      1. 7.3.1 Software enhancements
      2. 7.3.2 Hardware updates
  11. Chapter 8. Performance data and statistics gathering
    1. 8.1 SAN Volume Controller performance overview
      1. 8.1.1 Performance considerations
      2. 8.1.2 SAN Volume Controller performance perspectives
    2. 8.2 Performance monitoring
      1. 8.2.1 Collecting performance statistics
      2. 8.2.2 Real-time performance monitoring
      3. 8.2.3 Performance data collection and Tivoli Storage Productivity Center for Disk
  12. Chapter 9. SAN Volume Controller operations using the command-line interface
    1. 9.1 Normal operations using CLI
      1. 9.1.1 Command syntax and online help
    2. 9.2 New commands
    3. 9.3 Working with managed disks and disk controller systems
      1. 9.3.1 Viewing disk controller details
      2. 9.3.2 Renaming a controller
      3. 9.3.3 Discovery status
      4. 9.3.4 Discovering MDisks
      5. 9.3.5 Viewing MDisk information
      6. 9.3.6 Renaming an MDisk
      7. 9.3.7 Including an MDisk
      8. 9.3.8 Adding MDisks to a storage pool
      9. 9.3.9 Showing MDisks in a storage pool
      10. 9.3.10 Working with a storage pool
      11. 9.3.11 Creating a storage pool
      12. 9.3.12 Viewing storage pool information
      13. 9.3.13 Renaming a storage pool
      14. 9.3.14 Deleting a storage pool
      15. 9.3.15 Removing MDisks from a storage pool
    4. 9.4 Working with hosts
      1. 9.4.1 Creating a Fibre Channel-attached host
      2. 9.4.2 Creating an iSCSI-attached host
      3. 9.4.3 Modifying a host
      4. 9.4.4 Deleting a host
      5. 9.4.5 Adding ports to a defined host
      6. 9.4.6 Deleting ports
    5. 9.5 Working with the Ethernet port for iSCSI
    6. 9.6 Working with volumes
      1. 9.6.1 Creating a volume
      2. 9.6.2 Volume information
      3. 9.6.3 Creating a thin-provisioned volume
      4. 9.6.4 Creating a volume in image mode
      5. 9.6.5 Adding a mirrored volume copy
      6. 9.6.6 Splitting a mirrored volume
      7. 9.6.7 Modifying a volume
      8. 9.6.8 I/O governing
      9. 9.6.9 Deleting a volume
      10. 9.6.10 Expanding a volume
      11. 9.6.11 Assigning a volume to a host
      12. 9.6.12 Showing volumes to host mapping
      13. 9.6.13 Deleting a volume to host mapping
      14. 9.6.14 Migrating a volume
      15. 9.6.15 Migrating a fully managed volume to an image mode volume
      16. 9.6.16 Shrinking a volume
      17. 9.6.17 Showing a volume on an MDisk
      18. 9.6.18 Showing which volumes are using a storage pool
      19. 9.6.19 Showing which MDisks are used by a specific volume
      20. 9.6.20 Showing from which storage pool a volume has its extents
      21. 9.6.21 Showing the host to which the volume is mapped
      22. 9.6.22 Showing the volume to which the host is mapped
      23. 9.6.23 Tracing a volume from a host back to its physical disk
    7. 9.7 Scripting under the CLI for SAN Volume Controller task automation
      1. 9.7.1 Scripting structure
    8. 9.8 SAN Volume Controller advanced operations using the CLI
      1. 9.8.1 Command syntax
      2. 9.8.2 Organizing on window content
    9. 9.9 Managing the clustered system using the CLI
      1. 9.9.1 Viewing clustered system properties
      2. 9.9.2 Changing system settings
      3. 9.9.3 iSCSI configuration
      4. 9.9.4 Modifying IP addresses
      5. 9.9.5 Supported IP address formats
      6. 9.9.6 Setting the clustered system time zone and time
      7. 9.9.7 Starting statistics collection
      8. 9.9.8 Determining the status of a copy operation
      9. 9.9.9 Shutting down a clustered system
    10. 9.10 Nodes
      1. 9.10.1 Viewing node details
      2. 9.10.2 Adding a node
      3. 9.10.3 Renaming a node
      4. 9.10.4 Deleting a node
      5. 9.10.5 Shutting down a node
    11. 9.11 I/O Groups
      1. 9.11.1 Viewing I/O Group details
      2. 9.11.2 Renaming an I/O Group
      3. 9.11.3 Adding and removing hostiogrp
      4. 9.11.4 Listing I/O Groups
    12. 9.12 Managing authentication
      1. 9.12.1 Managing users using the CLI
      2. 9.12.2 Managing user roles and groups
      3. 9.12.3 Changing a user
      4. 9.12.4 Audit log command
    13. 9.13 Managing Copy Services
      1. 9.13.1 FlashCopy operations
      2. 9.13.2 Setting up FlashCopy
      3. 9.13.3 Creating a FlashCopy Consistency Group
      4. 9.13.4 Creating a FlashCopy mapping
      5. 9.13.5 Preparing (pre-triggering) the FlashCopy mapping
      6. 9.13.6 Preparing (pre-triggering) the FlashCopy Consistency Group
      7. 9.13.7 Starting (triggering) FlashCopy mappings
      8. 9.13.8 Starting (triggering) FlashCopy Consistency Group
      9. 9.13.9 Monitoring the FlashCopy progress
      10. 9.13.10 Stopping the FlashCopy mapping
      11. 9.13.11 Stopping the FlashCopy Consistency Group
      12. 9.13.12 Deleting the FlashCopy mapping
      13. 9.13.13 Deleting the FlashCopy Consistency Group
      14. 9.13.14 Migrating a volume to a thin-provisioned volume
      15. 9.13.15 Reverse FlashCopy
      16. 9.13.16 Split-stopping of FlashCopy maps
    14. 9.14 Metro Mirror operation
      1. 9.14.1 Setting up Metro Mirror
      2. 9.14.2 Creating a SAN Volume Controller partnership between ITSO_SVC1 and ITSO_SVC4
      3. 9.14.3 Creating a Metro Mirror Consistency Group
      4. 9.14.4 Creating the Metro Mirror relationships
      5. 9.14.5 Creating a stand-alone Metro Mirror relationship for MM_App_Pri
      6. 9.14.6 Starting Metro Mirror
      7. 9.14.7 Starting a Metro Mirror Consistency Group
      8. 9.14.8 Monitoring the background copy progress
      9. 9.14.9 Stopping and restarting Metro Mirror
      10. 9.14.10 Stopping a stand-alone Metro Mirror relationship
      11. 9.14.11 Stopping a Metro Mirror Consistency Group
      12. 9.14.12 Restarting a Metro Mirror relationship in the Idling state
      13. 9.14.13 Restarting a Metro Mirror Consistency Group in the Idling state
      14. 9.14.14 Changing the copy direction for Metro Mirror
      15. 9.14.15 Switching the copy direction for a Metro Mirror relationship
      16. 9.14.16 Switching the copy direction for a Metro Mirror Consistency Group
      17. 9.14.17 Creating a SAN Volume Controller partnership among many clustered systems
      18. 9.14.18 Star configuration partnership
    15. 9.15 Global Mirror operation
      1. 9.15.1 Setting up Global Mirror
      2. 9.15.2 Creating a SAN Volume Controller partnership between ITSO_SVC1 and ITSO_SVC4
      3. 9.15.3 Changing link tolerance and system delay simulation
      4. 9.15.4 Creating a Global Mirror Consistency Group
      5. 9.15.5 Creating Global Mirror relationships
      6. 9.15.6 Creating the stand-alone Global Mirror relationship for GM_App_Pri
      7. 9.15.7 Starting Global Mirror
      8. 9.15.8 Starting a stand-alone Global Mirror relationship
      9. 9.15.9 Starting a Global Mirror Consistency Group
      10. 9.15.10 Monitoring the background copy progress
      11. 9.15.11 Stopping and restarting Global Mirror
      12. 9.15.12 Stopping a stand-alone Global Mirror relationship
      13. 9.15.13 Stopping a Global Mirror Consistency Group
      14. 9.15.14 Restarting a Global Mirror relationship in the Idling state
      15. 9.15.15 Restarting a Global Mirror Consistency Group in the Idling state
      16. 9.15.16 Changing the direction for Global Mirror
      17. 9.15.17 Switching the copy direction for a Global Mirror relationship
      18. 9.15.18 Switching the copy direction for a Global Mirror Consistency Group
      19. 9.15.19 Changing a Global Mirror relationship to the cycling mode
      20. 9.15.20 Creating the thin-provisioned Change Volumes
      21. 9.15.21 Stopping the stand-alone remote copy relationship
      22. 9.15.22 Setting the cycling mode on the stand-alone remote copy relationship
      23. 9.15.23 Setting the Change Volume on the master volume
      24. 9.15.24 Setting the Change Volume on the auxiliary volume
      25. 9.15.25 Starting the stand-alone relationship in the cycling mode
      26. 9.15.26 Stopping the Consistency Group to change the cycling mode
      27. 9.15.27 Setting the cycling mode on the Consistency Group
      28. 9.15.28 Setting the Change Volume on the master volume relationships of the Consistency Group
      29. 9.15.29 Setting the Change Volumes on the auxiliary volumes
      30. 9.15.30 Starting the Consistency Group CG_W2K3_GM in the cycling mode
    16. 9.16 Service and maintenance
      1. 9.16.1 Upgrading software
      2. 9.16.2 Running the maintenance procedures
      3. 9.16.3 Setting up SNMP notification
      4. 9.16.4 Setting the syslog event notification
      5. 9.16.5 Configuring error notification using an email server
      6. 9.16.6 Analyzing the event log
      7. 9.16.7 License settings
      8. 9.16.8 Listing dumps
    17. 9.17 Backing up the SAN Volume Controller system configuration
      1. 9.17.1 Prerequisites
    18. 9.18 Restoring the SAN Volume Controller clustered system configuration
      1. 9.18.1 Deleting the configuration backup
    19. 9.19 Working with the SAN Volume Controller Quorum MDisks
      1. 9.19.1 Listing the SAN Volume Controller Quorum MDisks
      2. 9.19.2 Changing the SAN Volume Controller Quorum Disks
    20. 9.20 Working with the Service Assistant menu
      1. 9.20.1 SAN Volume Controller CLI Service Assistant menu
    21. 9.21 SAN troubleshooting and data collection
    22. 9.22 T3 recovery process
  13. Chapter 10. SAN Volume Controller operations using the GUI
    1. 10.1 Introduction to IBM SAN Volume Controller operations using the GUI
      1. 10.1.1 Overview
      2. 10.1.2 Monitoring
      3. 10.1.3 Pools
      4. 10.1.4 Volumes
      5. 10.1.5 Hosts
      6. 10.1.6 Copy Services
      7. 10.1.7 Access
      8. 10.1.8 Settings
    2. 10.2 New functions in 7.3
      1. 10.2.1 Extent size selection during pool creation
    3. 10.3 Storage Tier Advisor Tool
  14. Chapter 11. SAN Volume Controller Stretched System
    1. 11.1 Stretched System overview
      1. 11.1.1 More information
  15. Related publications
    1. IBM Redbooks
    2. Other resources
    3. Referenced websites
    4. Help from IBM
  16. Back cover
  17. IBM System x Reference Architecture for Hadoop: IBM InfoSphere BigInsights Reference Architecture
    1. Introduction
    2. Business problem and business value
    3. Reference architecture use
    4. Requirements
    5. InfoSphere BigInsights predefined configuration
    6. InfoSphere BigInsights HBase predefined configuration
    7. Deployment considerations
    8. Customizing the predefined configurations
    9. Predefined configuration bill of materials
    10. References
    11. The team who wrote this paper
    12. Now you can become a published author, too!
    13. Stay connected to IBM Redbooks
  18. Notices
    1. Trademarks