NWSD and NWSSTG recommendations

New P9, 9009-42A, V7R3.

I will be virtualizing about 20 TB of SSD to client R&D LPAR.
The entire R&D LPAR will virtualized.
My plan was 10 NWSD each consisting of 5 200gb NWSSTG.
This would give me 50 arms, each about 200gb each, one would be the load source.

Some rules and guidelines from previous posts.
More arms the better.
For performance - at least 6 NWSSTG per system, max 16 (32?) NWSSTG per NWSD
Consistently sized and at least 70GB ??

Goal is for optimal performance on both the host and the client LPARs.

1) Does anyone have any history on the optimal number of NWSD?
2) Can too many NWSD cause a performance issue.

Also, I will be repeating this process for 2 additional sandbox LPARS, each about 5 TB.

When complete, host LPAR will have about 20 NWSD.

Any thoughts from the group?

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
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