You are previewing IBM System Storage DCS3700 Introduction and Implementation Guide.
O'Reilly logo
IBM System Storage DCS3700 Introduction and Implementation Guide

Book Description

The IBM® System Storage® DCS3700 consists of IBM System Storage DCS3700 storage subsystem and IBM System Storage DCS3700 expansion unit. The DCS3700 features the latest technologies, including 6 Gbps SAS and 8 Gbps Fibre Channel host interfaces, along with 6 Gbps SAS drives. The DCS3700 also features a 10 Gbps iSCSI host interface with an optional Performance Modules system.

The DCS3700 provides a simple, efficient, and flexible approach to storage that is based on seven generations of design knowledge and firmware development. The DCS3700 can act as a cost-effective and fully integrated complement to IBM System x® servers, IBM BladeCenter®, and IBM Power Systems™ for various intensive computing environments.

This IBM Redbooks® publication specifically addresses the hardware features, configuration, and implementation of the DCS3700. It presents detailed descriptions of the hardware configurations and options that are offered with the DCS3700. It then presents the concepts and functions that are used in planning and managing the storage subsystems, such as multipathing and path failover. This book offers a step-by-step guide to using the IBM Storage Manager to create arrays, logical drives, and other basic (and advanced) management tasks.

This publication also contains practical information about diagnostic tests and troubleshooting, and includes practical examples about how to use scripts and the command-line interface (CLI).

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 System Storage DCS3700
    1. 1.1 IBM System Storage Portfolio
    2. 1.2 IBM System Storage DCS3700
      1. 1.2.1 DCS3700 components
    3. 1.3 IBM System Storage DCS3700 expansion unit
    4. 1.4 Premium Features
      1. 1.4.1 Partition Expansion License
      2. 1.4.2 FlashCopy expansion license
      3. 1.4.3 VolumeCopy license
      4. 1.4.4 FlashCopy VolumeCopy license
      5. 1.4.5 Try and Buy Premium Features
    5. 1.5 DCS3700 and DS3700P comparison
    6. 1.6 IBM System Storage DS Storage Manager
      1. 1.6.1 In-band management
      2. 1.6.2 Out-of-band management
      3. 1.6.3 Storage Manager Client (SMclient)
      4. 1.6.4 Storage Manager Agent (SMagent)
      5. 1.6.5 Storage Manager Utility (SMutil)
      6. 1.6.6 Multipath driver support
      7. 1.6.7 Java Access Bridge
  5. Chapter 2. IBM System Storage DCS3700 storage subsystem planning tasks
    1. 2.1 Planning your SAN and storage server
      1. 2.1.1 SAN zoning for the DCS3700 storage subsystem
      2. 2.1.2 Zoning considerations for Enhanced Remote Mirroring
    2. 2.2 Planning for physical components
      1. 2.2.1 Rack considerations
      2. 2.2.2 SAS cables and connectors
      3. 2.2.3 Ethernet cable and connections
      4. 2.2.4 Fibre Channel cables and connectors
      5. 2.2.5 Fibre Channel adapters
      6. 2.2.6 Disk expansion units
    3. 2.3 High Performance Module (DCS3700P)
    4. 2.4 Planning your storage structure
      1. 2.4.1 Selecting drives
      2. 2.4.2 Understanding RAID types
      3. 2.4.3 Array configuration
      4. 2.4.4 Dynamic Disk Pooling
      5. 2.4.5 Thin provisioning
      6. 2.4.6 Hot spare drives
      7. 2.4.7 Data loss protection planning
      8. 2.4.8 Logical drives and controller ownership
      9. 2.4.9 Storage partitioning
      10. 2.4.10 Segment size
      11. 2.4.11 Media scan
      12. 2.4.12 Cache parameters
    5. 2.5 Planning for Premium Features
      1. 2.5.1 VolumeCopy
      2. 2.5.2 FlashCopy
      3. 2.5.3 Enhanced FlashCopy
      4. 2.5.4 Enhanced Remote Mirroring
      5. 2.5.5 Obtaining Premium Features key
    6. 2.6 Additional planning considerations
      1. 2.6.1 Planning for systems with Logical Volume Manager: AIX example
      2. 2.6.2 Planning for systems without LVM: Windows example
      3. 2.6.3 Virtualization
      4. 2.6.4 SAN Volume Controller overview
    7. 2.7 Host support and multipathing
      1. 2.7.1 Supported server platforms
      2. 2.7.2 Supported operating systems
      3. 2.7.3 Clustering support
      4. 2.7.4 Multipathing
      5. 2.7.5 Microsoft Windows MPIO
      6. 2.7.6 AIX MPIO
      7. 2.7.7 AIX Subsystem Device Driver Path Control Module
      8. 2.7.8 Linux: RHEL/SLES
      9. 2.7.9 Function of the Auto-Logical Drive Transfer feature
      10. 2.7.10 Asymmetric logical unit access
    8. 2.8 Operating system considerations
      1. 2.8.1 Maximum capacity for a logical drive
      2. 2.8.2 Maximum number of LUNs per host
  6. Chapter 3. IBM System Storage DCS3700 and DCS3700 expansion unit cabling
    1. 3.1 DCS3700 controller connectors
      1. 3.1.1 DCS3700 controller with standard port configuration
      2. 3.1.2 The DCS3700 controller with an optional SAS host port adapter
      3. 3.1.3 DCS3700 controller with an optional Fibre Channel host port adapter
      4. 3.1.4 DCS3700 Performance Module
      5. 3.1.5 DCS3700 expansion unit ports
    2. 3.2 Enclosure ID settings
    3. 3.3 SAS cables
    4. 3.4 Fibre Channel cabling
      1. 3.4.1 SFP transceiver modules
      2. 3.4.2 Fibre Channel cables
      3. 3.4.3 Interoperability of 2 Gbps, 4 Gbps, 8 Gbps, and 16 Gbps devices
    5. 3.5 iSCSI Ethernet cabling
    6. 3.6 DCS3700 expansion unit attachment
      1. 3.6.1 Redundant drive channels
      2. 3.6.2 Drive channel cabling rules
      3. 3.6.3 Connecting the DCS3700 expansion unit
      4. 3.6.4 Adding a DCS3700 expansion unit to a running dual-controller configuration
      5. 3.6.5 SAS drive channel miswires
    7. 3.7 Management connections
      1. 3.7.1 Out-of-band management
      2. 3.7.2 In-band management
    8. 3.8 Host attachment
      1. 3.8.1 SAS attachment
      2. 3.8.2 Direct attached Fibre Channel
      3. 3.8.3 SAN fabric-attached DCS3700
      4. 3.8.4 iSCSI attachment
    9. 3.9 Power cabling
      1. 3.9.1 The DCS3700 power supply
      2. 3.9.2 Powering on and off
  7. Chapter 4. IBM System Storage DS Storage Manager installation
    1. 4.1 Installing DS Storage Manager on Microsoft Windows 2008
      1. 4.1.1 Installation preparation
      2. 4.1.2 Installing the Storage Manager Client on Microsoft Windows 2008
    2. 4.2 Installing DS Storage Manager on Linux
      1. 4.2.1 Preparing for the installation
      2. 4.2.2 Installing Storage Manager by using the GUI
      3. 4.2.3 Installing DS Storage Manager by using a text console
      4. 4.2.4 Uninstalling DS Storage Manager on Linux
    3. 4.3 Installing DS Storage Manager on AIX
      1. 4.3.1 Preparing for the installation
    4. 4.4 Completing the DS Storage Manager installation
      1. 4.4.1 Performing an automatic discovery of storage subsystems
      2. 4.4.2 Performing a manual discovery of storage subsystems
      3. 4.4.3 Adding a Storage Subsystem verification
  8. Chapter 5. Administration: Enterprise Management
    1. 5.1 Enterprise Management window overview
      1. 5.1.1 Initial Setup Tasks
      2. 5.1.2 Enterprise Management window
    2. 5.2 Functions in the Enterprise Management window
      1. 5.2.1 Subsystem menu
      2. 5.2.2 The Enterprise Management window menu bar
      3. 5.2.3 The Quick Access icons
  9. Chapter 6. Administration: Summary tab
    1. 6.1 DS Storage Manager: Summary tab
    2. 6.2 Monitor
      1. 6.2.1 Storage subsystem status
      2. 6.2.2 Storage Subsystem communication error
      3. 6.2.3 Operations in Progress
      4. 6.2.4 View Firmware Inventory
      5. 6.2.5 View Storage Subsystem Profile
      6. 6.2.6 View Event Log
      7. 6.2.7 Collect Support Data
    3. 6.3 Capacity
      1. 6.3.1 Create Storage
      2. 6.3.2 Create Logical Drive
    4. 6.4 Storage & Copy Services
    5. 6.5 Host Mappings
      1. 6.5.1 Host-to-Logical Drive Mappings
    6. 6.6 Premium Features
      1. 6.6.1 Manage Premium Features
    7. 6.7 Hardware
    8. 6.8 Information Center
  10. Chapter 7. Administration: Subsystem Management
    1. 7.1 DS Storage Manager: Subsystem Management
    2. 7.2 Drop-down menu
      1. 7.2.1 Storage Subsystem menu
    3. 7.3 Toolbar
    4. 7.4 Status bar
    5. 7.5 Tabs
  11. Chapter 8. Administration: Storage & Copy Services tab
    1. 8.1 Storage & Copy Services tab
    2. 8.2 Working with unconfigured capacity
      1. 8.2.1 View Associated Physical Components
      2. 8.2.2 Disk pool
      3. 8.2.3 Create Array
    3. 8.3 Working with arrays
      1. 8.3.1 Locate and View Associated Components
      2. 8.3.2 Add Free Capacity (Drives)
      3. 8.3.3 Replace Drive
      4. 8.3.4 Change Ownership and RAID level
      5. 8.3.5 Deleting and renaming arrays
    4. 8.4 Creating a disk pool
    5. 8.5 Working with a disk pool
      1. 8.5.1 Locate and View Associated Components
      2. 8.5.2 Add Free Capacity (Drive)
    6. 8.6 Working with free capacity in arrays
      1. 8.6.1 Creating a logical drive
    7. 8.7 Working with free capacity in a disk pool
      1. 8.7.1 Creating a standard logical drive
      2. 8.7.2 Thin logical drive
      3. 8.7.3 Creating a thin logical drive
    8. 8.8 Working with logical drives
      1. 8.8.1 Create option
      2. 8.8.2 Increase Capacity option
      3. 8.8.3 Increase Repository Capacity
      4. 8.8.4 Change
      5. 8.8.5 Change Modification Priority
      6. 8.8.6 Change Cache Settings
      7. 8.8.7 Change Media Scan Settings
      8. 8.8.8 Change Pre-Read Redundancy Check
      9. 8.8.9 Change Ownership/Preferred Path
      10. 8.8.10 Change Segment Size
      11. 8.8.11 Change Repository settings
      12. 8.8.12 Add to Consistency Group and Remove from Consistency Group
      13. 8.8.13 Convert FlashCopy to Enhanced FlashCopy Group
      14. 8.8.14 View Associated Physical Component
      15. 8.8.15 Delete and Rename
      16. 8.8.16 Advanced
    9. 8.9 Consistency groups
      1. 8.9.1 Creating a consistency group
      2. 8.9.2 Work with Consistency Group
  12. Chapter 9. Administration: Hardware tab
    1. 9.1 Hardware tab
    2. 9.2 Discovering component properties and location
      1. 9.2.1 Showing the disk type
      2. 9.2.2 View Enclosure Components
      3. 9.2.3 Disk Drive menu
      4. 9.2.4 Controller menu
    3. 9.3 Setting a hot spare drive
    4. 9.4 Failed disk drive replacement
    5. 9.5 Setting a preferred loop ID
    6. 9.6 Setting remote access
    7. 9.7 Setting the Ethernet management ports
      1. 9.7.1 Initial settings for the default IP addresses in DS Storage Manager
      2. 9.7.2 Configuring the Ethernet management ports
  13. Chapter 10. Administration: Mappings tab
    1. 10.1 Mappings tab
    2. 10.2 Defining a host
      1. 10.2.1 Adding a host to an existing host group
    3. 10.3 Defining storage partitioning
    4. 10.4 Defining a host group
    5. 10.5 Manage Host Port Identifiers option
    6. 10.6 Define Additional Mapping option
    7. 10.7 Viewing unassociated ports
    8. 10.8 Moving, removing, and renaming a host
      1. 10.8.1 Move option
      2. 10.8.2 Remove option
      3. 10.8.3 Rename option
    9. 10.9 Changing a host type
    10. 10.10 Changing and removing mapping
      1. 10.10.1 Change Mapping option
      2. 10.10.2 Remove Mapping option
  14. Chapter 11. Administration: Setup tab
    1. 11.1 Setup tab
      1. 11.1.1 Locate Storage Subsystem
      2. 11.1.2 Rename Storage Subsystem
      3. 11.1.3 Change Hardware View Order
      4. 11.1.4 Set a Storage Subsystem Password
      5. 11.1.5 Manage Premium Features
      6. 11.1.6 Configure iSCSI Host Ports
      7. 11.1.7 Create Storage
      8. 11.1.8 Save Configuration
      9. 11.1.9 Manually Define Hosts
      10. 11.1.10 Map Logical Drives
      11. 11.1.11 Configure Ethernet Management Ports
      12. 11.1.12 Manage iSCSI Setting
  15. Chapter 12. Administration: iSCSI
    1. 12.1 Planning for iSCSI attachment
      1. 12.1.1 Hardware initiators
      2. 12.1.2 Software initiators
      3. 12.1.3 Storage partitioning
      4. 12.1.4 Network settings
      5. 12.1.5 Security
    2. 12.2 iSCSI configuration summary
    3. 12.3 Manage iSCSI protocol settings
      1. 12.3.1 Target authentication
      2. 12.3.2 Mutual authentication
      3. 12.3.3 Target identification
      4. 12.3.4 Target discovery
    4. 12.4 Configuring iSCSI host ports
    5. 12.5 View/End iSCSI Sessions
    6. 12.6 Viewing iSCSI statistics
    7. 12.7 Defining iSCSI hosts
      1. 12.7.1 Viewing unassociated iSCSI initiators
      2. 12.7.2 Defining a new iSCSI host
      3. 12.7.3 Managing iSCSI host ports
  16. Chapter 13. Administration: Monitor
    1. 13.1 The Subsystem Management Monitor menu
    2. 13.2 View Health (Recovery Guru)
    3. 13.3 Performance Monitor
      1. 13.3.1 Performance Monitor: Table View
      2. 13.3.2 Graphical Performance Monitor
    4. 13.4 Collect Support Data
      1. 13.4.1 Saving the support data
      2. 13.4.2 Automatic Support Data Collection settings
    5. 13.5 Retrieve Trace Buffers
    6. 13.6 Storage subsystem diagnostic tests
      1. 13.6.1 Read Link Status
      2. 13.6.2 Collecting I/O Path Statistics
      3. 13.6.3 Validating the configuration database
    7. 13.7 Collecting drive data
    8. 13.8 Collecting state capture
    9. 13.9 Operations in Progress
    10. 13.10 Storage Subsystem Profile
    11. 13.11 Cable connection
    12. 13.12 Event Log
    13. 13.13 Unreadable Sectors Log
    14. 13.14 Maintenance: Persistent Reservations
    15. 13.15 IBM Remote Support Manager for Storage
  17. Chapter 14. Administration: Upgrade
    1. 14.1 The Subsystem Management Upgrade menu
    2. 14.2 Downloading firmware
      1. 14.2.1 Before you upgrade
      2. 14.2.2 Firmware inventory
      3. 14.2.3 Updating the host
    3. 14.3 Upgrading the DCS3700 controller firmware
      1. 14.3.1 Staged upgrades and activation
      2. 14.3.2 Pre-upgrade checks
      3. 14.3.3 Major and minor firmware upgrades
      4. 14.3.4 Using the Enterprise Management upgrade tool
      5. 14.3.5 Using the DCS3700 Storage Manager (Subsystem Management)
    4. 14.4 Controller NVSRAM
    5. 14.5 Drive firmware
    6. 14.6 ESM firmware
    7. 14.7 Enclosure configuration settings
  18. Chapter 15. Command-line interface (CLI)
    1. 15.1 Introduction to the command-line interface
    2. 15.2 How to use the command-line interface
      1. 15.2.1 Usage notes
    3. 15.3 Running the command-line interface
      1. 15.3.1 Script Editor
    4. 15.4 General SMcli syntax
    5. 15.5 Adding a storage subsystem to the Storage Manager configuration
    6. 15.6 Showing the defined subsystems in the Storage Manager configuration
    7. 15.7 Configuring alerts
      1. 15.7.1 Defining the mail server and email address to send out the email alerts
      2. 15.7.2 Defining email alert recipients
      3. 15.7.3 Deleting email alert recipients
      4. 15.7.4 SNMP alert recipients
    8. 15.8 Issuing commands to the storage subsystem
      1. 15.8.1 Sample command: Save configuration script file
    9. 15.9 More information
  19. Chapter 16. Windows SAS configuration guide for IBM BladeCenter
    1. 16.1 Required equipment
    2. 16.2 IBM BladeCenter setup
      1. 16.2.1 Installing Windows Server 2008 R2
      2. 16.2.2 HS23 SAS Expansion Cards
      3. 16.2.3 Recording the SAS Expansion Card WWPN
      4. 16.2.4 HS23 SAS Expansion Card device driver
      5. 16.2.5 SAS Connectivity Modules
      6. 16.2.6 SAS Connectivity Module firmware update
      7. 16.2.7 Configuring the SAS Connectivity Module
      8. 16.2.8 SAS Connectivity Module zoning
    3. 16.3 Installing the DS Storage Manager host software
    4. 16.4 Configuring the disk space in Windows Server 2008 R2
  20. Chapter 17. Windows Fibre Channel configuration guide
    1. 17.1 Fibre Channel storage configuration
      1. 17.1.1 Planning for the installation
      2. 17.1.2 Installing the HBA drivers
      3. 17.1.3 Installing QLogic SANSurfer
      4. 17.1.4 Installing the Windows multipath driver
      5. 17.1.5 Discovering devices (logical disk drives)
  21. Chapter 18. Linux configuration guide
    1. 18.1 Fibre Channel storage configuration
      1. 18.1.1 Planning for the installation
      2. 18.1.2 Installing HBA drivers
      3. 18.1.3 Installing QLogic SANSurfer
      4. 18.1.4 Installing the Linux multipath driver
    2. 18.2 SAS storage configuration
      1. 18.2.1 Preparing for the installation
      2. 18.2.2 Getting SAS Adapters address
      3. 18.2.3 Installing the Linux multipath driver
      4. 18.2.4 Discovering devices (disk drives)
    3. 18.3 Managing the disk space by using IBM DS Storage Manager and LVM
    4. 18.4 Troubleshooting guide
      1. 18.4.1 rescan_scsi_bus.sh is not showing any new device
      2. 18.4.2 multipath –ll output does not show all the LUNs.
      3. 18.4.3 multipath does not show paths that are equal to the number of LUNs that are mapped
      4. 18.4.4 multipath -ll output is showing the paths as [failed][faulty]
  22. Chapter 19. IBM AIX V7.1 configuration guide
    1. 19.1 Planning for the installation
      1. 19.1.1 Zoning considerations
      2. 19.1.2 Planning MPIO
    2. 19.2 Configuring MPIO
    3. 19.3 Setting up the DCS3700 logical drives and host mapping
    4. 19.4 Scanning and managing the storage logical drive from AIX
      1. 19.4.1 Ways to manage the paths
    5. 19.5 SAS attachment
      1. 19.5.1 Equipment required
      2. 19.5.2 IBM BladeCenter setup
      3. 19.5.3 SAS Connectivity Modules
      4. 19.5.4 SAS card installation
      5. 19.5.5 SAS Connectivity Module firmware update
      6. 19.5.6 SAS Connectivity Module zoning
      7. 19.5.7 Mapping a LUN from IBM DS Storage Manager
      8. 19.5.8 Adding a LUN in AIX
  23. Appendix A. IBM Support Portal website
    1. Sample navigation procedure
    2. Downloading code updates
    3. My notifications
  24. Related publications
    1. IBM Redbooks
    2. Other publications
    3. Online resources
    4. Help from IBM
  25. Back cover