On Mon, Apr 20, 2015 at 3:31 PM, Blair Bethwaite <[email protected]> wrote: > Hi all, > > I understand the present pool tiering infrastructure is intended to work for >>2 layers? We're presently considering backup strategies for large pools and > wondered how much of a stretch it would be to have a base tier sitting in > e.g. an S3 store... I imagine a pg in the base+1 tier mapping straight to a > bucket/container, so placement seems pretty straight forward. > > Is this a capability that's not far away or even very close today? > > Hopefully this isn't too naïve! I understand that as a backup strategy it's > likely useless without write-through all the way to the base, but I am > thinking of interDC fiber rather than Internet.
It's definitely not a naive thought — a system supporting this was our initial design — but the cache pool system as it exists today is nowhere close to supporting third-party storage systems. :( It would require a bunch of work to go from the existing cache pools with an embedded "agent" to a tiering system with redirects and an external agent that can make layer movement decisions and execute them. -Greg > > Cheers, > Blair > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
