> On 26/03/2015, at 20.38, J-P Methot <[email protected]> wrote: > > Lately I've been going back to work on one of my first ceph setup and now I > see that I have created way too many placement groups for the pools on that > setup (about 10 000 too many). I believe this may impact performances > negatively, as the performances on this ceph cluster are abysmal. Since it is > not possible to reduce the number of PGs in a pool, I was thinking of > creating new pools with a smaller number of PGs, moving the data from the old > pools to the new pools and then deleting the old pools. > > I haven't seen any command to copy objects from one pool to another. Would > that be possible? I'm using ceph for block storage with openstack, so surely > there must be a way to move block devices from a pool to another, right?
What I did a one point was going one layer higher in my storage abstraction, and created new Ceph pools and used those for new storage resources/pool in my VM env. (ProxMox) on top of Ceph RBD and then did a live migration of virtual disks there, assume you could do the same in OpenStack. My 0.02$ /Steffen _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
