Is there an enumerated list of issues with snapshots on cache pools. We currently have snapshots on a cache tier and haven't seen any issues (development cluster). I just want to know what we should be looking for. On Tue, Mar 24, 2015 at 9:21 AM, Stéphane DUGRAVOT <stephane.dugravot@xxxxxxxxxxxxxxxx> wrote: > > > ________________________________ > > Hi Markus, > > On 24/03/2015 14:47, Markus Goldberg wrote: >> Hi, >> this is ceph version 0,93 >> I can't create an image in an rbd-erasure-pool: >> >> root@bd-0:~# >> root@bd-0:~# ceph osd pool create bs3.rep 4096 4096 replicated >> pool 'bs3.rep' created >> root@bd-0:~# rbd create --size 1000 --pool bs3.rep test >> root@bd-0:~# >> root@bd-0:~# ceph osd pool create bs3.era 4096 4096 erasure >> pool 'bs3.era' created >> root@bd-0:~# rbd create --size 1000 --pool bs3.era tapes2 >> rbd: create error: (95) Operation not supported2015-03-24 13:57:31.018411 >> 7fc186b77840 -1 >> librbd: error adding image to directory: (95) Operation not supported > > RBD won't work with erasure coded pools. Instead you could try adding a > replicated cache pool and use it. > > See http://docs.ceph.com/docs/master/rados/operations/cache-tiering/ for > more information. > > > Hi Loic and Markus, > By the way, Inktank do not support snapshot of a pool with cache tiering : > > https://download.inktank.com/docs/ICE%201.2%20-%20Cache%20and%20Erasure%20Coding%20FAQ.pdf > > What's wrong exactly with that ? i suppose that some features is not > possible ? > Do you know what ? > Thanks, > Stephane. > > > Cheers > >> >> Is this not possible at the moment or am i mistyping? >> >> BTW: Deleting or shrinking an empty image takes very, very looooooooonng >> >> Thank you, >> Markus >> >> -------------------------------------------------------------------------- >> Markus Goldberg Universität Hildesheim >> Rechenzentrum >> Tel +49 5121 88392822 Universitätsplatz 1, D-31141 Hildesheim, Germany >> Fax +49 5121 88392823 email goldberg@xxxxxxxxxxxxxxxxx >> -------------------------------------------------------------------------- >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- > Loïc Dachary, Artisan Logiciel Libre > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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