Den mån 13 jan. 2020 kl 08:09 skrev Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx>:
Hello,
i'm plannung to split the block db to a seperate flash device which i
also would like to use as an OSD for erasure coding metadata for rbd
devices.
If i want to use 14x 14TB HDDs per Node
https://docs.ceph.com/docs/master/rados/configuration/bluestore-config-ref/#sizing
recommends a minimum size of 140GB per 14TB HDD.
Is there any recommandation of how many osds a single flash device can
serve? The optane ones can do 2000MB/s write + 500.000 iop/s.
Greets,
Stefan
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