Ibm Total Storage Ds8000 Users Manual SG246452

2015-02-02

• Front cover
• Contents
• Notices
  • Trademarks
• Preface
  • The team that wrote this redbook
  • Become a published author
  • Comments welcome
• Part 1 Introduction
• Chapter 1. Introduction to the DS8000 series
  • 1.1 The DS8000, a member of the TotalStorage DS family
    • 1.1.1 Infrastructure Simplification
    • 1.1.2 Business Continuity
    • 1.1.3 Information Lifecycle Management
  • 1.2 Overview of the DS8000 series
    • 1.2.1 Hardware overview
    • 1.2.2 Storage capacity
    • 1.2.3 Storage system logical partitions (LPARs)
    • 1.2.4 Supported environments
    • 1.2.5 Resiliency Family for Business Continuity
    • 1.2.6 Interoperability
    • 1.2.7 Service and setup
  • 1.3 Positioning
    • 1.3.1 Common set of functions
    • 1.3.2 Common management functions
    • 1.3.3 Scalability and configuration flexibility
    • 1.3.4 Future directions of storage system LPARs
  • 1.4 Performance
    • 1.4.1 Sequential Prefetching in Adaptive Replacement Cache (SARC)
    • 1.4.2 IBM TotalStorage Multipath Subsystem Device Driver (SDD)
    • 1.4.3 Performance for zSeries
  • 1.5 Summary
• Part 2 Architecture
• Chapter 2. Components
  • 2.1 Frames
    • 2.1.1 Base frame
    • 2.1.2 Expansion frame
    • 2.1.3 Rack operator panel
  • 2.2 Architecture
    • 2.2.1 Server-based SMP design
    • 2.2.2 Cache management
  • 2.3 Processor complex
    • 2.3.1 RIO-G
    • 2.3.2 I/O enclosures
  • 2.4 Disk subsystem
    • 2.4.1 Device adapters
    • 2.4.2 Disk enclosures
  • 2.5 Host adapters
    • 2.5.1 FICON and Fibre Channel protocol host adapters
  • 2.6 Power and cooling
  • 2.7 Management console network
  • 2.8 Summary
• Chapter 3. Storage system LPARs (Logical partitions)
  • 3.1 Introduction to logical partitioning
    • 3.1.1 Virtualization Engine technology
    • 3.1.2 Partitioning concepts
    • 3.1.3 Why Logically Partition?
  • 3.2 DS8000 and LPAR
    • 3.2.1 LPAR and storage facility images
    • 3.2.2 DS8300 LPAR implementation
    • 3.2.3 Storage facility image hardware components
    • 3.2.4 DS8300 Model 9A2 configuration options
  • 3.3 LPAR security through POWER™ Hypervisor (PHYP)
  • 3.4 LPAR and Copy Services
  • 3.5 LPAR benefits
  • 3.6 Summary
• Chapter 4. RAS
  • 4.1 Naming
  • 4.2 Processor complex RAS
  • 4.3 Hypervisor: Storage image independence
    • 4.3.1 RIO-G - a self-healing interconnect
    • 4.3.2 I/O enclosure
  • 4.4 Server RAS
    • 4.4.1 Metadata checks
    • 4.4.2 Server failover and failback
    • 4.4.3 NVS recovery after complete power loss
  • 4.5 Host connection availability
    • 4.5.1 Open systems host connection
    • 4.5.2 zSeries host connection
  • 4.6 Disk subsystem
    • 4.6.1 Disk path redundancy
    • 4.6.2 RAID-5 overview
    • 4.6.3 RAID-10 overview
    • 4.6.4 Spare creation
    • 4.6.5 Predictive Failure Analysis® (PFA)
    • 4.6.6 Disk scrubbing
  • 4.7 Power and cooling
    • 4.7.1 Building power loss
    • 4.7.2 Power fluctuation protection
    • 4.7.3 Power control of the DS8000
    • 4.7.4 Emergency power off (EPO)
  • 4.8 Microcode updates
  • 4.9 Management console
  • 4.10 Summary
• Chapter 5. Virtualization concepts
  • 5.1 Virtualization definition
  • 5.2 Storage system virtualization
  • 5.3 The abstraction layers for disk virtualization
    • 5.3.1 Array sites
    • 5.3.2 Arrays
    • 5.3.3 Ranks
    • 5.3.4 Extent pools
    • 5.3.5 Logical volumes
    • 5.3.6 Logical subsystems (LSS)
    • 5.3.7 Volume access
    • 5.3.8 Summary of the virtualization hierarchy
    • 5.3.9 Placement of data
  • 5.4 Benefits of virtualization
• Chapter 6. IBM TotalStorage DS8000 model overview and scalability
  • 6.1 DS8000 highlights
    • 6.1.1 Model naming conventions
    • 6.1.2 DS8100 Model 921
    • 6.1.3 DS8300 Models 922 and 9A2
  • 6.2 Model comparison
  • 6.3 Designed for scalability
    • 6.3.1 Scalability for capacity
    • 6.3.2 Scalability for performance
    • 6.3.3 Model upgrades
• Chapter 7. Copy Services
  • 7.1 Introduction to Copy Services
  • 7.2 Copy Services functions
    • 7.2.1 Point-in-Time Copy (FlashCopy)
    • 7.2.2 FlashCopy options
    • 7.2.3 Remote Mirror and Copy (Peer-to-Peer Remote Copy)
    • 7.2.4 Comparison of the Remote Mirror and Copy functions
    • 7.2.5 What is a Consistency Group?
  • 7.3 Interfaces for Copy Services
    • 7.3.1 Storage Hardware Management Console (S-HMC)
    • 7.3.2 DS Storage Manager Web-based interface
    • 7.3.3 DS Command-Line Interface (DS CLI)
    • 7.3.4 DS Open application programming Interface (API)
  • 7.4 Interoperability with ESS
  • 7.5 Future Plans
• Part 3 Planning and configuration
• Chapter 8. Installation planning
  • 8.1 General considerations
  • 8.2 Delivery requirements
  • 8.3 Installation site preparation
    • 8.3.1 Floor and space requirements
    • 8.3.2 Power requirements
    • 8.3.3 Environmental requirements
  • 8.4 Host attachment
    • 8.4.1 Attaching to open systems hosts
    • 8.4.2 ESCON-attached S/390 and zSeries hosts
    • 8.4.3 FICON-attached S/390 and zSeries hosts
    • 8.4.4 Where to get the updated information for host attachment
  • 8.5 Network and SAN requirements
    • 8.5.1 S-HMC network requirements
    • 8.5.2 Remote support connection requirements
    • 8.5.3 Remote power control requirements
    • 8.5.4 SAN requirements
• Chapter 9. Configuration planning
  • 9.1 Configuration planning overview
  • 9.2 Storage Hardware Management Console (S-HMC)
    • 9.2.1 External S-HMC
    • 9.2.2 S-HMC software components
    • 9.2.3 S-HMC network topology
    • 9.2.4 FTP Offload option
  • 9.3 DS8000 licensed functions
    • 9.3.1 Operating environment license (OEL) - required feature
    • 9.3.2 Point-in-Time Copy function (2244 Model PTC)
    • 9.3.3 Remote Mirror and Copy functions (2244 Model RMC)
    • 9.3.4 Remote Mirror for z/OS (2244 Model RMZ)
    • 9.3.5 Parallel Access Volumes (2244 Model PAV)
    • 9.3.6 Ordering licensed functions
    • 9.3.7 Disk storage feature activation
    • 9.3.8 Scenarios for managing licensing
  • 9.4 Capacity planning
    • 9.4.1 Logical configurations
    • 9.4.2 Sparing rules
    • 9.4.3 Sparing examples
    • 9.4.4 IBM Standby Capacity on Demand (Standby CoD)
    • 9.4.5 Capacity and well-balanced configuration
  • 9.5 Data migration planning
    • 9.5.1 Operating system mirroring
    • 9.5.2 Basic commands
    • 9.5.3 Software packages
    • 9.5.4 Remote copy technologies
    • 9.5.5 Migration services and appliances
    • 9.5.6 z/OS data migration methods
  • 9.6 Planning for performance
    • 9.6.1 Disk Magic
    • 9.6.2 Size of cache storage
    • 9.6.3 Number of host ports/channels
    • 9.6.4 Remote copy
    • 9.6.5 Parallel Access Volumes (z/OS only)
    • 9.6.6 I/O priority queuing (z/OS only)
    • 9.6.7 Monitoring performance
    • 9.6.8 Hot spot avoidance
• Chapter 10. The DS Storage Manager - logical configuration
  • 10.1 Configuration hierarchy, terminology, and concepts
    • 10.1.1 Storage configuration terminology
    • 10.1.2 Summary of the DS Storage Manager logical configuration steps
  • 10.2 Introducing the GUI and logical configuration panels
    • 10.2.1 Connecting to the DS8000
    • 10.2.2 The Welcome panel
    • 10.2.3 Navigating the GUI
  • 10.3 The logical configuration process
    • 10.3.1 Configuring a storage complex
    • 10.3.2 Configuring the storage unit
    • 10.3.3 Configuring the logical host systems
    • 10.3.4 Creating arrays from array sites
    • 10.3.5 Creating extent pools
    • 10.3.6 Creating FB volumes from extents
    • 10.3.7 Creating volume groups
    • 10.3.8 Assigning LUNs to the hosts
    • 10.3.9 Deleting LUNs and recovering space in the extent pool
    • 10.3.10 Creating CKD LCUs
    • 10.3.11 Creating CKD volumes
    • 10.3.12 Displaying the storage unit WWNN
  • 10.4 Summary
• Chapter 11. DS CLI
  • 11.1 Introduction
  • 11.2 Functionality
  • 11.3 Supported environments
  • 11.4 Installation methods
  • 11.5 Command flow
  • 11.6 User security
  • 11.7 Usage concepts
    • 11.7.1 Command modes
    • 11.7.2 Syntax conventions
    • 11.7.3 User assistance
    • 11.7.4 Return codes
  • 11.8 Usage examples
  • 11.9 Mixed device environments and migration
    • 11.9.1 Migration tasks
  • 11.10 DS CLI migration example
    • 11.10.1 Determining the saved tasks to be migrated
    • 11.10.2 Collecting the task details
    • 11.10.3 Converting the saved task to a DS CLI command
    • 11.10.4 Using DS CLI commands via a single command or script
  • 11.11 Summary
• Chapter 12. Performance considerations
  • 12.1 What is the challenge?
    • 12.1.1 Speed gap between server and disk storage
    • 12.1.2 New and enhanced functions
  • 12.2 Where do we start?
    • 12.2.1 SSA backend interconnection
    • 12.2.2 Arrays across loops
    • 12.2.3 Switch from ESCON to FICON ports
    • 12.2.4 PPRC over Fibre Channel links
    • 12.2.5 Fixed LSS to RAID rank affinity and increasing DDM size
  • 12.3 How does the DS8000 address the challenge?
    • 12.3.1 Fibre Channel switched disk interconnection at the back end
    • 12.3.2 Fibre Channel device adapter
    • 12.3.3 New four-port host adapters
    • 12.3.4 POWER5 - Heart of the DS8000 dual cluster design
    • 12.3.5 Vertical growth and scalability
  • 12.4 Performance and sizing considerations for open systems
    • 12.4.1 Workload characteristics
    • 12.4.2 Cache size considerations for open systems
    • 12.4.3 Data placement in the DS8000
    • 12.4.4 LVM striping
    • 12.4.5 Determining the number of connections between the host and DS8000
    • 12.4.6 Determining the number of paths to a LUN
    • 12.4.7 Determining where to attach the host
  • 12.5 Performance and sizing considerations for z/OS
    • 12.5.1 Connect to zSeries hosts
    • 12.5.2 Performance potential in z/OS environments
    • 12.5.3 Appropriate DS8000 size in z/OS environments
    • 12.5.4 Configuration recommendations for z/OS
  • 12.6 Summary
• Part 4 Implementation and management in the z/OS environment
• Chapter 13. zSeries software enhancements
  • 13.1 Software enhancements for the DS8000
  • 13.2 z/OS enhancements
    • 13.2.1 Scalability support
    • 13.2.2 Large Volume Support (LVS)
    • 13.2.3 Read availability mask support
    • 13.2.4 Initial Program Load (IPL) enhancements
    • 13.2.5 DS8000 definition to host software
    • 13.2.6 Read control unit and device recognition for DS8000
    • 13.2.7 New performance statistics
    • 13.2.8 Resource Management Facility (RMF)
    • 13.2.9 Migration considerations
    • 13.2.10 Coexistence considerations
  • 13.3 z/VM enhancements
  • 13.4 z/VSE enhancements
  • 13.5 TPF enhancements
• Chapter 14. Data migration in zSeries environments
  • 14.1 Define migration objectives in z/OS environments
    • 14.1.1 Consolidate storage subsystems
    • 14.1.2 Consolidate logical volumes
    • 14.1.3 Keep source and target volume size at the current size
    • 14.1.4 Summary of data migration objectives
  • 14.2 Data migration based on physical migration
    • 14.2.1 Physical migration with DFSMSdss and other storage software
    • 14.2.2 Software- and hardware-based data migration
    • 14.2.3 Hardware- or microcode-based migration
  • 14.3 Data migration based on logical migration
    • 14.3.1 Data Set Services Utility
    • 14.3.2 Hierarchical Storage Manager, DFSMShsm
    • 14.3.3 System utilities
    • 14.3.4 Data migration within the System-managed storage environment
    • 14.3.5 Summary of logical data migration based on software utilities
  • 14.4 Combine physical and logical data migration
  • 14.5 z/VM and VSE/ESA data migration
  • 14.6 Summary of data migration
• Part 5 Implementation and management in the open systems environment
• Chapter 15. Open systems support and software
  • 15.1 Open systems support
    • 15.1.1 Supported operating systems and servers
    • 15.1.2 Where to look for updated and detailed information
    • 15.1.3 Differences to the ESS 2105
    • 15.1.4 Boot support
    • 15.1.5 Additional supported configurations (RPQ)
    • 15.1.6 Differences in interoperability between the DS8000 and DS6000
  • 15.2 Subsystem Device Driver
  • 15.3 Other multipathing solutions
  • 15.4 DS CLI
  • 15.5 IBM TotalStorage Productivity Center
    • 15.5.1 Device Manager
    • 15.5.2 TPC for Disk
    • 15.5.3 TPC for Replication
  • 15.6 Global Mirror Utility
  • 15.7 Enterprise Remote Copy Management Facility (eRCMF)
  • 15.8 Summary
• Chapter 16. Data migration in the open systems environment
  • 16.1 Introduction
  • 16.2 Comparison of migration methods
    • 16.2.1 Host operating system-based migration
    • 16.2.2 Subsystem-based data migration
    • 16.2.3 IBM Piper migration
    • 16.2.4 Other migration applications
  • 16.3 IBM migration services
  • 16.4 Summary
• Appendix A. Open systems operating systems specifics
  • General considerations
    • The DS8000 Host Systems Attachment Guide
    • Planning
  • UNIX performance monitoring tools
    • IOSTAT
    • System Activity Report (SAR)
    • VMSTAT
  • IBM AIX
    • Other publications
    • The AIX host attachment scripts
    • Finding the World Wide Port Names
    • Managing multiple paths
    • LVM configuration
    • AIX access methods for I/O
    • Boot device support
    • AIX on IBM iSeries
    • Monitoring I/O performance
  • Linux
    • Support issues that distinguish Linux from other operating systems
    • Existing reference material
    • Important Linux issues
    • Linux on IBM iSeries
    • Troubleshooting and monitoring
  • Microsoft Windows 2000/2003
    • HBA and operating system settings
    • SDD for Windows
    • Windows Server 2003 VDS support
  • HP OpenVMS
    • FC port configuration
    • Volume configuration
    • Command Console LUN
    • OpenVMS volume shadowing
• Appendix B. Using DS8000 with iSeries
  • Supported environment
    • Hardware
    • Software
  • Logical volume sizes
  • Protected versus unprotected volumes
    • Changing LUN protection
  • Adding volumes to iSeries configuration
    • Using 5250 interface
    • Adding volumes to an Independent Auxiliary Storage Pool
  • Multipath
    • Avoiding single points of failure
    • Configuring multipath
    • Adding multipath volumes to iSeries using 5250 interface
    • Adding volumes to iSeries using iSeries Navigator
    • Managing multipath volumes using iSeries Navigator
    • Multipath rules for multiple iSeries systems or partitions
    • Changing from single path to multipath
  • Sizing guidelines
    • Planning for arrays and DDMs
    • Cache
    • Number of iSeries Fibre Channel adapters
    • Size and number of LUNs
    • Recommended number of ranks
    • Sharing ranks between iSeries and other servers
    • Connecting via SAN switches
  • Migration
    • OS/400 mirroring
    • Metro Mirror and Global Copy
    • OS/400 data migration
  • Copy Services for iSeries
    • FlashCopy
    • Remote Mirror and Copy
    • iSeries toolkit for Copy Services
  • AIX on IBM iSeries
  • Linux on IBM iSeries
• Appendix C. Service and support offerings
  • IBM Web sites for service offerings
  • IBM service offerings
  • IBM Operational Support Services - Support Line
• Related publications
  • IBM Redbooks
  • Other publications
  • Online resources
  • How to get IBM Redbooks
  • Help from IBM
• Index
• Back cover