I would add that the use of cache tiering, though still possible, is not recommended and comes with its own challenges.
On Mon, Apr 29, 2019 at 11:49 AM Igor Podlesny <[email protected]> wrote: > On Mon, 29 Apr 2019 at 16:19, Rainer Krienke <[email protected]> > wrote: > [...] > > - Do I still (nautilus) need two pools for EC based RBD images, one EC > > data pool and a second replicated pool for metadatata? > > The answer is given at > > http://docs.ceph.com/docs/nautilus/rados/operations/erasure-code/#erasure-coding-with-overwrites > "... > Erasure coded pools do not support omap, so to use them with RBD and > CephFS you must instruct them to store their data in an ec pool, and > their metadata in a replicated pool > ..." > > Another option is using tiered pools, specially when you can dedicate > fast OSDs for that: > > > http://docs.ceph.com/docs/nautilus/rados/operations/erasure-code/#erasure-coded-pool-and-cache-tiering > > -- > End of message. Next message? > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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