Hi all,
I have a question regarding a possible scenario to put both wal and db
in a separate SSD device for an OSD node composed by 22 OSDs (HDD SAS
10k 1,8 To).
I'm thinking of 2 options (at about the same price) :
- add 2 SSD SAS Write Intensive (10DWPD)
- or add a unique SSD NVMe 800 Go (it's the minimum capacity currently
on the market !..)
In both case, that's a lot of partitions on each SSD disk, especially on
the second solution where we would have 44 partitions (22 WAL and 22 DB) !
Is this solution workable (I mean in term of i/o speeds), or is it
unsafe despite the high PCIe bus transfer rate ?
I just want to talk here about throughput performances, not data
integrity on the node in case of SSD crashes...
Thanks in advance for your advices,
Hervé
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