We are running two systems off IBM FlashSystem V5030 All Flash SAN with
Metro Mirror between the primary and DR LPARs. This is over 10G fibre

Only one LPAR is replicated and we have successfully tested failing over to
the DR LPAR and IPL'ing off the replicated volume,

If you had 6 partitions Metro Mirror might have to work a bit harder to
monitor writes from 6 partitions to the disk and keep track of updates to
the 6 LPARs.

I can't comment if the V5035 is more capable than the V5030 but that is
something your hardware business partner can probably help you with.

As as Jim says, it's up to the SAN software to do the work - the Power
server is none the wiser :-)

On Wed, Nov 17, 2021 at 7:21 AM Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>


If you are contemplating replication then you almost must be at the 5035,
the smaller SANs don't have the processor/memory to handle replication
With 6 partitions I'd strongly consider at least the 5035 or more. The P
level has nothing to do with the choice really.

All three of those items will affect your choice. What you need to be
concerned with is the processor/memory on the SAN, not the storage or
connectivity etc.

Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects

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