Re: [ceph-users] OSD: Newbie question regarding ceph-deploy odd create

2013-09-28 Thread Piers Dawson-Damer
Another question: What is the best practice for partitioning SSDs for journals? I think my journal partitions might be the preventing ceph-deploy odd create from working. I have a single Intel 910 PCIe SSD in each storage node. The 910 is two (or four) Hitachi 200GB SSDs and an LSI SAS switc

Re: [ceph-users] performance and disk usage of snapshots

2013-09-28 Thread Olivier Bonvalet
Hi, Le mardi 24 septembre 2013 à 18:37 +0200, Corin Langosch a écrit : > Hi there, > > do snapshots have an impact on write performance? I assume on each write all > snapshots have to get updated (cow) so the more snapshots exist the worse > write > performance will get? > Not exactly : the

Re: [ceph-users] Can't mount CephFS - where to start troubleshooting?

2013-09-28 Thread Aaron Ten Clay
Okay, looks like I was a bit hasty in my examination of log files. I discovered this line in the monitor log: 2013-09-27 23:54:25.089967 7fe04e454700 1 mon.chekov@1(peon).auth v15 unknown.0 10.42.6.159:0/2985411387 supports cephx but not signatures and 'cephx [service] require signatures = true';