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148 DS6000 Series: Concepts and Architecture
Figure 8-14 Different data migration methods
See Chapter 13, “Data Migration in zSeries environments” on page 251 for a complete
discussion of the different methods available for data migration from any other disk system to
the DS6000 series.
8.6 Planning for performance
The IBM TotalStorage DS6000 is a cost effective, high performance, high capacity series of
disk storage that is designed to support continuous operations and allows your workload to
be easily consolidated into a single storage subsystem. To have a well-balanced disk system
the following components that affect performance need to be considered:
Disk Magic
Number of ports
Remote Copy
Parallel Access Volumes (z/OS only)
I/O priority queuing (z/OS only)
Monitoring performance
Hot spot avoidance
Preferred paths
8.6.1 Disk Magic
An IBM representative or an IBM Business Partner may model your workload using Disk
Magic before migrating to the DS6000. Modelling should be based on performance data
Data migration methods
Environment Data migration method
S/390 IBM TotalStorage Global Mirror, Remote Mirror and Copy (when available)
zSeries IBM TotalStorage Global Mirror, Remote Mirror and Copy (when available)
Linux environment IBM TotalStorage Global Mirror, Remote Mirror and Copy (when available)
z/OS operating system DFSMSdss (simplest method)
DFSMShsm
IDCAMS Export/Import (VSAM)
IDCAMS Repro (VSAM, SAM, BDAM)
IEBCOPY
ICEGENER, IEBGENER (SAM)
Specialized database utilities for CICS, DB2 or IMS
Softek Replicator (previously known as TDMF)
INNOVATION FDR Plug and Swap (FDRPAS)
VM operating system DASD Dump Restore
CMDISK
COPYFILE
PTAPE
VSE operating system VSE fastcopy
VSE ditto
VSE power
VSE REPRO or EXPORT/IMPORT
- The IBM TotalStorage 1
- DS6000 Series: Concepts 1
- Contents ix 11
- LSS X'17' 100
- LSS X'18' 100
- DB2-test 100
- 4.2.7 Address groups 101
- 4.2.8 Volume access 101
- Host attachment 102
- Volume group 102
- 4.2.10 Placement of data 104
- Host LVM volume 105
- 5.1 DS6000 highlights 108
- 5.1.2 DS6000 Model 1750-EX1 109
- Loop 0) 111
- Loop 1) 111
- Controller 0 112
- Controller 1 112
- Copy Services 113
- 6.2 Copy Services functions 114
- Source Target 115
- 6.2.2 FlashCopy options 116
- Incremental FlashCopy 117
- Waiting write operation 119
- FlashCopy to 120
- PPRC Primary 120
- Persistent FlashCopy 121
- Global Copy (PPRC-XD) 122
- Server write 123
- Write to secondary 123
- (non-synchronously) 123
- Write acknowledge 123
- How Global Mirror works 124
- Global Mirror - How it works 125
- 127
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