about ceph pool


Active Member
Apr 23, 2019
maybe this is a easy question.
but i really no understand.
i wish give me a describe.
you see this image
we have 3node
every node have 2 osd.
now we create pool.
i no understande this image every option.
i wish get reply


  • 微信截图_20190531122043.png
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Name... no explanation needed i guess
From the official ceph docs:

Size -> "Sets the number of replicas for objects in the pool"
Min. Size -> "Sets the minimum number of written replicas for objects in the pool in order to acknowledge a write operation to the client. If minimum is not met, Ceph will not acknowledge the write to the client, which may result in data loss."
Crush rule -> "The default CRUSH rule to use when creating a replicated pool"
pg_num -> "The default number of placement groups for a pool"

add storages -> Enable this if you want to add this pool to the Datacenter storage configure (which you probably want)

for more information see our docs and for even more look at the ceph docs:



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