IBM TotalStorage DS8000 User Manual

Required hardware components to build a storage image . . . . . . . . .96
I/O resources . . . . . . . . . . . . . . . . . . . . . . . .97
Processor and memory allocation . . . . . . . . . . . . . . . . .97
RIO-G interconnect separation . . . . . . . . . . . . . . . . . .98
Chapter 8. Optional feature codes for the DS8000 . . . . . . . . . . .99
Using parallel access volumes for S/390 and zSeries hosts . . . . . . . .99
Parallel access volumes . . . . . . . . . . . . . . . . . . . . 100
PAV requirements for the DS8000 . . . . . . . . . . . . . . . . 100
Overview of the input/output configuration program for the DS8000 . . . . 101
Guidelines for defining the logical control unit for the DS8000 . . . . . . 103
Reconfiguring an LCU with larger capacity 3390 volumes . . . . . . . . 104
Increasing the number of 3390s formatted within an LSS . . . . . . . . 104
Copy Services . . . . . . . . . . . . . . . . . . . . . . . . . 104
Copy Services overview . . . . . . . . . . . . . . . . . . . . 104
IBM TotalStorage Resiliency Family . . . . . . . . . . . . . . . . 105
Disaster recovery using Copy Services . . . . . . . . . . . . . . 106
Copy Services functions across a 2105 and 2107 . . . . . . . . . . 107
FlashCopy . . . . . . . . . . . . . . . . . . . . . . . . . .110
Reverse FlashCopy relationships . . . . . . . . . . . . . . . . . 111
FlashCopy to Metro Mirror source volumes . . . . . . . . . . . . .112
Multiple relationship FlashCopy . . . . . . . . . . . . . . . . .113
Persistent FlashCopy . . . . . . . . . . . . . . . . . . . . .113
Re-synchronizing FlashCopy volume pairs . . . . . . . . . . . . .114
Creating a Remote FlashCopy operation (Inband FlashCopy on the ESS
2105) . . . . . . . . . . . . . . . . . . . . . . . . . .114
Path connections . . . . . . . . . . . . . . . . . . . . . . . .116
Remote Mirror and Copy . . . . . . . . . . . . . . . . . . . . .116
Global Copy . . . . . . . . . . . . . . . . . . . . . . . .117
Global Mirror . . . . . . . . . . . . . . . . . . . . . . . .118
Metro Mirror . . . . . . . . . . . . . . . . . . . . . . . . 121
Consistency groups . . . . . . . . . . . . . . . . . . . . . . 122
Failover and failback operations . . . . . . . . . . . . . . . . . 123
z/OS Copy Services . . . . . . . . . . . . . . . . . . . . . . 124
z/OS Global Mirror . . . . . . . . . . . . . . . . . . . . . . 124
z/OS Metro/Global Mirror . . . . . . . . . . . . . . . . . . . . 125
Chapter 9. Migrating data to a storage unit . . . . . . . . . . . . . 127
How to select a data migration method . . . . . . . . . . . . . . . 127
Considerations for replacing existing storage . . . . . . . . . . . . . 128
Reformatting open systems host DDMs . . . . . . . . . . . . . . . 128
Overview of the logical volume management software . . . . . . . . . . 129
Copying a complete logical volume . . . . . . . . . . . . . . . . 129
Using mirroring to migrate data . . . . . . . . . . . . . . . . . 130
Using the migratepv command . . . . . . . . . . . . . . . . . 131
Using the direct copy method . . . . . . . . . . . . . . . . . . 132
Using backup and restore methods to migrate data . . . . . . . . . . . 133
Migrating data from an eServer i5 400 or iSeries host system to the DS8000 134
Migrating data from an S/390 or zSeries host system to the DS8000 storage
unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Data migration from a UNIX-based host system to a DS8000 storage unit 135
Migrating data to a DS8000 storage unit using volume management
methods . . . . . . . . . . . . . . . . . . . . . . . . . 136
Migrating data using the direct copy method . . . . . . . . . . . . 137
Migrating data using backup and restore methods . . . . . . . . . . 137
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IBM TotalStorage DS8000 Specifications

General

Brand	IBM
Model	TotalStorage DS8000
Category	Storage
Language	English