Hi Anthony,
El 22/10/20 a las 18:34, Anthony D'Atri escribió:
Yeah, didn't think about a RAID10 really, although there wouldn't be enough space for 8x300GB = 2400GB WAL/DBs.
300 is overkill for many applications anyway.
Yes, but he has spillover with 1600GB/12 WAL/DB. Seems he can make use
of those 300GB.
Also, using a RAID10 for WAL/DBs will:
- make OSDs less movable between hosts (they'd have to be moved all together - with 2 OSD per NVMe you can move them around in pairs
Why would you want to move them between hosts?
I think the usual case is a server failure, so that won't be a problem.
With small clusters (like ours) you may want to reorganize OSDs to a new
server (let's say, move one OSD of earch server to the new server). But
this is an uncommon corner-case, I agree :)
Cheers
--
Eneko Lacunza | +34 943 569 206
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Zuzendari teknikoa | https://www.binovo.es
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