Hardware requirements for the FlashCopy feature
To use the FlashCopy® technology in an PowerHA® solution, ensure
that the minimum hardware requirements are met.
The following minimum hardware requirements are needed
for the FlashCopy feature:
- At least one IBM® iattached to an IBM System Storage® device. For a FlashCopy to a IBM i target system or partition
(Where the FlashCopy target
is not *NONE), both the FlashCopy source
and FlashCopy target systems
or partitions must be attached to the same external storage device.
- PowerHA supports FlashCopy on DS8000®, SAN Volume Controller, and Storwize®. For specific Fibre
Channel adapters supported, see IBM System Storage Interoperation
Center (SSIC).
- Appropriate disk sizing for the system storage
should be completed before any configuration.
- For FlashCopy with DS8000 System Storage Devices, you need one set of disks for the source, an equal set of disk units for the target, and another set for each consistency group. Space efficient FlashCopy (FlashCopy SE) can be used to reduce this disk requirement.
- For FlashCopy with SAN Volume Controller (SVC), or Storwize System Storage Devices, you need one set of disks for the source, and an equal set of disk units for the target.
For more information about the storage technologies
that are provided by IBM, see PowerHA supported storage servers.
Related concepts:
