Den ons 20 maj 2020 kl 12:00 skrev Ignazio Cassano <ignaziocass...@gmail.com
>:

> Hello All,
> We have 6 servers.
> Configuration for each server:
> 1 ssd for mon (only on three servers)
> 1 ssd 1.9 TB for db/wal
> 1 nvme 1.6 TB for db/wal
> 10 SAS  hdd  3.6 TB for osd
> We decided to create a pool of 30 osd (5x6) with db/wal on ssd and a pool
> of 30 (5x6) osd with db/wal on nvme.
> So we create a vm on the pool with db.wal on ssd and a vm on the pool with
> db/wal on nvme.
> Fio performances are almost the same on both .
> What do you think about it ?
> I expect better performance on pool with db/wal on pci express nvme
>

Perhaps most of the time is lost talking over the network, making the small
differences in how well ssd -vs- nvme perform not visible.

-- 
May the most significant bit of your life be positive.
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