Здравствуйте! On Fri, Apr 22, 2016 at 09:30:15AM +0200, martin.wilderoth wrote: > >> I have a ceph cluster and I will change my journal devices to new SSD's. > >> > >> In some instructions of doing this they refer to a journal file (link to > >> UUID of journal ) > >> > >> In my OSD folder this journal don’t exist. > >> >> If your cluster is "years old" and not created with ceph-disk, then yes, >> that's not surprising. >> Mind, I created a recent one of mine manually and still used that scheme: >> --- ls -la /var/lib/ceph/osd/ceph-12/ >> total 80 >> drwxr-xr-x 4 root root 4096 Mar 1 14:44 . >> drwxr-xr-x 8 root root 4096 Sep 10 2015 .. >> -rw-r--r-- 1 root root 37 Sep 10 2015 ceph_fsid >> drwxr-xr-x 320 root root 24576 Mar 2 20:24 current >> -rw-r--r-- 1 root root 37 Sep 10 2015 fsid >> lrwxrwxrwx 1 root root 44 Sep 10 2015 journal -> >> /dev/disk/by-id/wwn-0x55cd2e404b77573c-part5 >> -rw------- 1 root root 57 Sep 10 2015 keyring >> --- >> >> Ceph isn't magical, so if that link isn't there, you probably have >> something like this in your ceph.conf, preferably with UUID instead of thet >> possibly changing device name: >> --- >> [osd.0] >> host = ceph-01 >> osd journal = /dev/sdc3 >> --- > Yes that is my setup, Would that mean i could either create symlink journal > -> /dev/disk/...... > remove the osd journal in ceph.conf. > or change my ceph.conf with osd journal = /dev/.... > And the recommended way is actually to use journal symlink ? I'm using symlinks to /dev/disk/by-partlabel/ It saves me from any troubles when replacing journal SSDs. The same for mounts: I use LABEL= in fstab because of changing device names when replacing HW in storage nodes. Of cause, any can set proper udev rules, but I'm too lazy for this exercises :) -- WBR, Max A. Krasilnikov _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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