[ceph-users] OSD balancing problems

2014-11-19 Thread Stephane Boisvert
Hi, I know a lot of people already asked these questions but looking at all the answers I'm still having problems with my OSD balancing. Disks size is 4TB drives. We are seeing differences up to 10% Here is a DF from one server: /dev/sdc1 3.7T 3.0T 680G 82%

Re: [ceph-users] PCI-E SSD Journal for SSD-OSD Disks

2014-05-15 Thread Stephane Boisvert
Excellent choice.. we did put 2 of them (350G) in Dell R720xd with 24x 10K 1.2Gb drives... Excellent performance.. we now need to test it on low latency switches .. (we are on regular switches 2x10GB per servers). I know for that amount of OSD we would need 3 cards to max out IO but

[ceph-users] OSD Keep Crashing

2013-08-12 Thread Stephane Boisvert
Hi, It seems my OSD processes keep crashing randomly and I don't know why. It seems to happens when the cluster is trying to re-balance... In normal usange I didn't notice any crash like that. We running ceph 0.61.7 on an up to date ubuntu 12.04 (all packages

Re: [ceph-users] Libvirt, quemu, ceph write cache settings

2013-06-11 Thread Stephane Boisvert
Thanks for your answer that was exactly what I was looking for ! We'll go forward with that cache setting. ! Stephane On 13-06-11 05:24 AM, Wolfgang Hennerbichler wrote: On 06/10/2013 07:35 PM, Stephane Boisvert wrote