[gpfsug-discuss] Preferred NSD

[Lukas Hejtmanek]

Hello,

I'm thinking about the following setup:
~ 60 nodes, each with two enterprise NVMe SSDs, FDR IB interconnected

I would like to setup shared scratch area using GPFS and those NVMe SSDs. Each
SSDs as on NSD.

I don't think like 5 or more data/metadata replicas are practical here. On the
other hand, multiple node failures is something really expected.

Is there a way to instrument that local NSD is strongly preferred to store
data? I.e. node failure most probably does not result in unavailable data for
the other nodes?

Or is there any other recommendation/solution to build shared scratch with
GPFS in such setup? (Do not do it including.)

-- 
Lukáš Hejtmánek