Le 05/11/2015 20:15, Evan Harris a écrit :
We have been doing some lab work on PowerHA and the technologies around it
and have a question regarding IASP storage:.
Is it possible to attach an IASP to a new system and keep the contents of
the IASP intact, and if so h ow ?
If I had 3 LUNs defined in an IASP and copied that storage to 3 other LUNs
is it possible to then attach that storage as an IASP to a new system and
bring the IASP up on the different system ?
The source and destination systems must be members of the same cluster and
must be defined in the device domain. You do have to have one destination
system per target system until 7.2. There are improvments in 7.2 regarding
this sentence but I did no tested them yet.
While the target IASP is varied off, you can then use a flashcopy from the
source volumes to the target volumes and then, vary on the IASP on the
target system. PowerHA provide STRxxxSSN commands to initiate the
flashcopy. xxx is SVC for an SVC (and brothers like V7000) external
storage. xxx is ASP for DS8x00 external storage.
I am not aware of any possibility to do the same clone operation with
We do it every night on around 20 clusters to perform the backup to tape
operation on the target systems.
The PowerHA SystemMirror for i redbook as a chapter for this kind of
I realize there could be some application dependencies missing like user
profiles, JOBDs or whatever, but from a pure data/storage perspective is
possible to do what I am asking.
Yes. The administrative domain provided by PowerHA can help you to
synchronize user profiles, job descriptions, job queue definition (not the
content), and so ....
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