Hi Sage, Sorry to chip you in, do you have any comments on this? Since I noted you advised Tim Snider on similar situation before. :) http://www.spinics.net/lists/ceph-users/msg05142.html Looking forward to your reply, thank you. Cheers. On Wed, May 7, 2014 at 11:31 AM, Indra Pramana <indra at sg.or.id> wrote: > Hi Craig and all, > > I checked S?bastien Han's blog post, it seems that the way how the journal > was mounted is a bit different, is it because the article was based on > older version of Ceph? > > ==== > $ sudo mount /dev/sdc /journal > > $ ceph-osd -i 2 --mkjournal > 2012-08-16 13:29:58.735095 7ff0c4b58780 -1 created new journal > /journal/journal for object store /srv/ceph/osd2 > > $ sudo service ceph start osd.2 > === osd.2 === > Starting Ceph osd.2 on ceph03... > starting osd.2 at :/0 osd_data /srv/ceph/osd2 /journal/journal > ==== > > From what I can see, on all my OSD nodes in my Ceph cluster, the journal > is mounted on this folder (or file?) instead of /journal: > > /var/lib/ceph/osd/ceph-X/journal > > which in turns is a symbolic link to this file: > > lrwxrwxrwx 1 root root 58 Apr 6 23:45 journal -> > /dev/disk/by-partuuid/3ff2c20c-6b58-41d3-9e7e-b3ec63c62c2f > > which in turns is a symbolic link to the journal partition on the device: > > lrwxrwxrwx 1 root root 10 May 3 23:48 > 3ff2c20c-6b58-41d3-9e7e-b3ec63c62c2f -> ../../sdf1 > > I am using one SSD for journals for multiple OSDs within a node. Any > advise on the correct way how to mount and create the journal? Do I need to > mount first, or create first? Because I supposed that we need to mount to > the partition *after* the journal is created? > > I am using latest stable version of Dumpling (v0.67.7). > > Any advice is greatly appreciated. > > Thank you. > > > > On Wed, May 7, 2014 at 1:40 AM, Craig Lewis <clewis at centraldesktop.com>wrote: > >> On 5/6/14 03:34 , Gandalf Corvotempesta wrote: >> >> Hi to all, >> I would like to replace a disk used as journal (one partition for each OSD) >> >> Which is the safest method to do so? >> _______________________________________________ >> ceph-users mailing listceph-users at lists.ceph.comhttp://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> >> I haven't tried this yet, but I imagine that the process is similar to >> moving your journal from the spinning disk to an SSD. >> >> S?bastien Han had a blog post about this: >> http://www.sebastien-han.fr/blog/2012/08/17/ceph-storage-node-maintenance/ >> >> >> >> -- >> >> *Craig Lewis* >> Senior Systems Engineer >> Office +1.714.602.1309 >> Email clewis at centraldesktop.com >> >> *Central Desktop. Work together in ways you never thought possible.* >> Connect with us Website <http://www.centraldesktop.com/> | Twitter<http://www.twitter.com/centraldesktop> | >> Facebook <http://www.facebook.com/CentralDesktop> | LinkedIn<http://www.linkedin.com/groups?gid=147417> | >> Blog <http://cdblog.centraldesktop.com/> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users at lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140509/dc5d358d/attachment.htm>
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