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Sébastien Han b70b098405 ceph: add support for stretched cluster crush rule

The pool spec has now a new property called "replicasPerFailureDomain"
which essentially represents the number of replicas to store in each
failure domain.
Assuming the failure domain is a datacenter (if the cluster is
stretched) then you will have 2 replicas per datacenter where each
replica ends up on a different host. This gives you a total of 4
replicas and for this, the "size" must be set to 4.

Closes: https://github.com/rook/rook/issues/5591
Signed-off-by: Sébastien Han <seb@redhat.com>

2020-10-13 16:33:34 +02:00

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v1.5...

K8s Version Support

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Breaking Changes

Ceph

Ceph mons require an odd number for a healthy quorum. An even number of mons is now disallowed.

Features

Ceph

Ceph Block Pool: add mirroring support
Ceph Block Pool: add replicasPerFailureDomain to set the number of replica in a failure domain (#5591)

413 B Raw Blame History

Major Themes

K8s Version Support

Upgrade Guides

Breaking Changes

Ceph

Features

Ceph

413 B

Raw Blame History