Re: [ceph-users] use ZFS for OSDs

2015-04-14 Thread Quenten Grasso
-users-boun...@lists.ceph.com] On Behalf Of Michal Kozanecki Sent: Friday, 10 April 2015 5:15 AM To: Christian Balzer; ceph-users Subject: Re: [ceph-users] use ZFS for OSDs I had surgery and have been off for a while. Had to rebuild test ceph+openstack cluster with whatever spare parts I had. I

Re: [ceph-users] use ZFS for OSDs

2015-04-09 Thread Michal Kozanecki
-Original Message- From: Christian Balzer [mailto:ch...@gol.com] Sent: November-01-14 4:43 AM To: ceph-users Cc: Michal Kozanecki Subject: Re: [ceph-users] use ZFS for OSDs On Fri, 31 Oct 2014 16:32:49 + Michal Kozanecki wrote: I'll test this by manually inducing corrupted data

Re: [ceph-users] use ZFS for OSDs

2014-11-01 Thread Christian Balzer
for a single hot 4KB of data is hardly efficient. Regards, Christian Cheers, -Original Message- From: Christian Balzer [mailto:ch...@gol.com] Sent: October-30-14 4:12 AM To: ceph-users Cc: Michal Kozanecki Subject: Re: [ceph-users] use ZFS for OSDs On Wed, 29 Oct 2014 15

Re: [ceph-users] use ZFS for OSDs

2014-10-31 Thread Michal Kozanecki
Subject: Re: [ceph-users] use ZFS for OSDs On Wed, 29 Oct 2014 15:32:57 + Michal Kozanecki wrote: [snip] With Ceph handling the redundancy at the OSD level I saw no need for using ZFS mirroring or zraid, instead if ZFS detects corruption instead of self-healing it sends a read failure

Re: [ceph-users] use ZFS for OSDs

2014-10-30 Thread Christian Balzer
On Wed, 29 Oct 2014 15:32:57 + Michal Kozanecki wrote: [snip] With Ceph handling the redundancy at the OSD level I saw no need for using ZFS mirroring or zraid, instead if ZFS detects corruption instead of self-healing it sends a read failure of the pg file to ceph, and then ceph's scrub

[ceph-users] use ZFS for OSDs

2014-10-29 Thread Kenneth Waegeman
Hi, We are looking to use ZFS for our OSD backend, but I have some questions. My main question is: Does Ceph already supports the writeparallel mode for ZFS ? (as described here: http://www.sebastien-han.fr/blog/2013/12/02/ceph-performance-interesting-things-going-on/) I've found this, but

Re: [ceph-users] use ZFS for OSDs

2014-10-29 Thread Sage Weil
On Wed, 29 Oct 2014, Kenneth Waegeman wrote: Hi, We are looking to use ZFS for our OSD backend, but I have some questions. My main question is: Does Ceph already supports the writeparallel mode for ZFS ? (as described here:

Re: [ceph-users] use ZFS for OSDs

2014-10-29 Thread Michal Kozanecki
-users-boun...@lists.ceph.com] On Behalf Of Michal Kozanecki Sent: October-29-14 11:33 AM To: Kenneth Waegeman; ceph-users Subject: Re: [ceph-users] use ZFS for OSDs Hi Kenneth, I run a small ceph test cluster using ZoL (ZFS on Linux) ontop of CentOS 7, so I'll try and answer any questions

Re: [ceph-users] use ZFS for OSDs

2014-10-29 Thread Stijn De Weirdt
Of Michal Kozanecki Sent: October-29-14 11:33 AM To: Kenneth Waegeman; ceph-users Subject: Re: [ceph-users] use ZFS for OSDs Hi Kenneth, I run a small ceph test cluster using ZoL (ZFS on Linux) ontop of CentOS 7, so I'll try and answer any questions. :) Yes, ZFS writeparallel support

Re: [ceph-users] use ZFS for OSDs

2014-10-29 Thread Michal Kozanecki
] On Behalf Of Michal Kozanecki Sent: October-29-14 11:33 AM To: Kenneth Waegeman; ceph-users Subject: Re: [ceph-users] use ZFS for OSDs Hi Kenneth, I run a small ceph test cluster using ZoL (ZFS on Linux) ontop of CentOS 7, so I'll try and answer any questions. :) Yes, ZFS writeparallel support