Re: [ceph-users] Snapshots and fstrim with cache tiers ?

2015-03-27 Thread Frédéric Nass
Hello, The snapshot with a cache tier part was answered by Greg Farnum (https://www.mail-archive.com/ceph-users@lists.ceph.com/msg18329.html). What about fstrim with a cache tier ? It doesn't seem to work. Also is there a background task that recovers freed blocks ? Best regards,

Re: [ceph-users] Snapshots and fstrim with cache tiers ?

2015-03-27 Thread Gregory Farnum
On Wed, Mar 25, 2015 at 3:14 AM, Frédéric Nass frederic.n...@univ-lorraine.fr wrote: Hello, I have a few questions regarding snapshots and fstrim with cache tiers. In the cache tier and erasure coding FAQ related to ICE 1.2 (based on Firefly), Inktank says Snapshots are not supported in

[ceph-users] Snapshots and fstrim with cache tiers ?

2015-03-25 Thread Frédéric Nass
Hello, I have a few questions regarding snapshots and fstrim with cache tiers. In the cache tier and erasure coding FAQ related to ICE 1.2 (based on Firefly), Inktank says Snapshots are not supported in conjunction with cache tiers. What are the risks of using snapshots with cache