amedi 15 Mars 2014 19:07:56
Objet: Re: [ceph-users] No more Journals ?
Hello Everyone
If you see ceph day presentation delivered by Sebastien ( slide number 23 )
http://www.slideshare.net/Inktank_Ceph/ceph-performance
It looks like Firefly has dropped support to Journals , How concrete is th
Hello Everyone
If you see ceph day presentation delivered by Sebastien ( slide number 23 )
http://www.slideshare.net/Inktank_Ceph/ceph-performance
It looks like Firefly has dropped support to Journals , How concrete is this
news ???
-Karan-
On 14 Mar 2014, at 15:35, Jake Young wrote:
>
Journals will default to being on-disk with the OSD if there is nothing
specified on the ceph-deploy line. If you have a separate journal device,
then you should specify it per the original example syntax.
Michael J. Kidd
Sr. Storage Consultant
Inktank Professional Services
On Fri, Mar 14, 2014
You should take a look at this blog post:
http://ceph.com/community/ceph-performance-part-2-write-throughput-without-ssd-journals/
The test results shows that using a RAID card with a write-back cache
without journal disks can perform better or equivalent to using journal
disks with XFS.
*As to
Sorry,
i should have asked a little bit clearer:
Can ceph (or OSDs) be used without journals now ?
The Journal-Parameter seems to be optional ( because of '[...]' )
Markus
Am 14.03.2014 12:19, schrieb John Spray:
Journals have not gone anywhere, and ceph-deploy still supports
specifying them wit
Journals have not gone anywhere, and ceph-deploy still supports
specifying them with exactly the same syntax as before.
The page you're looking at is the simplified "quick start", the detail
on osd creation including journals is here:
http://eu.ceph.com/docs/v0.77/rados/deployment/ceph-deploy-osd/
Hi,
i'm a little bit surprised. I read through the new manuals of 0.77
(http://eu.ceph.com/docs/v0.77/start/quick-ceph-deploy/)
In the section of creating the osd the manual says:
/Then, from your admin node, use //ceph-deploy//to prepare the OSDs./
//
/ceph-deploy osd prepare {ceph-node}:/pa
