Hi Gandalf and all,
FYI, I checked sgdisk's man page and it seems that the correct command to
restore should be:
sgdisk --load-backup=/tmp/journal_table /dev/sdg
Will try this next weekend and update again.
Thank you.
On Sat, May 10, 2014 at 10:58 PM, Indra Pramana wrote:
> Hi Gandalf,
>
Hi Gandalf,
I tried to dump journal partition scheme from the old SSD:
sgdisk --backup=/tmp/journal_table /dev/sdg
and then restore the journal partition scheme to the new SSD after it's
replaced:
sgdisk --restore-backup=/tmp/journal_table /dev/sdg
and it doesn't work. :( parted -l doesn't sho
2014-05-09 15:55 GMT+02:00 Sage Weil :
> This looks correct to me!
Some command to automate this in ceph would be nice.
For example, skipping the "mkjournal" step:
ceph-osd -i 30 --mkjournal
ceph-osd -i 31 --mkjournal
ceph should be smarth enough to automatically make journals if missing
so that
On Fri, 9 May 2014, Indra Pramana wrote:
> Hi Gandalf and Sage,
>
> Just would like to confirm if my steps below to replace a journal disk are
> correct? Presuming the journal disk to be replaced is /dev/sdg and the two
> affected OSDs using the disk as journals are osd.30 and osd.31:
>
> - ceph
Hi Gandalf and Sage,
Just would like to confirm if my steps below to replace a journal disk are
correct? Presuming the journal disk to be replaced is /dev/sdg and the two
affected OSDs using the disk as journals are osd.30 and osd.31:
- ceph osd set noout
- stop affected OSDs
sudo stop ceph-osd
Hi Gandalf and Sage,
Many thanks! Will try this and share the outcome.
Cheers.
On Fri, May 9, 2014 at 12:55 AM, Gandalf Corvotempesta <
gandalf.corvotempe...@gmail.com> wrote:
> 2014-05-08 18:43 GMT+02:00 Indra Pramana :
> > Since we don't use ceph.conf to indicate the data and journal paths,
2014-05-08 18:43 GMT+02:00 Indra Pramana :
> Since we don't use ceph.conf to indicate the data and journal paths, how can
> I recreate the journal partitions?
1. Dump the partition scheme:
sgdisk --backup=/tmp/journal_table /dev/sdd
2. Replace the journal disk device
3. Restore the old partition
Hi Sage,
On Fri, May 9, 2014 at 12:32 AM, Sage Weil wrote:
>
>
> On Fri, 9 May 2014, Indra Pramana wrote:
>
> > Hi Sage,
> > Thanks for your reply!
> >
> > Actually what I want is to replace the journal disk only, while I want
> to keep the OSD FS
> > intact.
> >
> > I have 4 OSDs on a node of 4
On Fri, 9 May 2014, Indra Pramana wrote:
> Hi Sage,
> Thanks for your reply!
>
> Actually what I want is to replace the journal disk only, while I want to
> keep the OSD FS
> intact.
>
> I have 4 OSDs on a node of 4 spinning disks (sdb, sdc, sdd, sde) and 2 SSDs
> (sdf and sdg)
>
> osd.28 o
Hi Sage,
Thanks for your reply!
Actually what I want is to replace the journal disk only, while I want to
keep the OSD FS intact.
I have 4 OSDs on a node of 4 spinning disks (sdb, sdc, sdd, sde) and 2 SSDs
(sdf and sdg)
osd.28 on /dev/sdb, journal on /dev/sdf1
osd.29 on /dev/sdc, journal on /de
Hi Indra,
The simplest way to do the fs and journal creation is to use the ceph-disk
tool:
ceph-disk prepare FSDDISK JOURNALDISK
For example,
ceph-disk prepare /dev/sdb # put fs and journal on same disk, or
ceph-disk prepare /dev/sdb /dev/sdc # fs on sdb, journal on (a new part o
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 wrote:
Hi Craig and all,
I checked Sébastien 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 cr
2014-05-06 19:40 GMT+02:00 Craig Lewis :
> 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.
My journals are on SSD. I have to replace that SSD.
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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?
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2014-05-06 16:33 GMT+02:00 Gandalf Corvotempesta
:
> Symlink are pointing to partition UUID this prevent the replacement
> without manual intervetion:
>
> journal -> /dev/disk/by-partuuid/b234da10-dcad-40c7-aa97-92d35099e5a4
>
> is not possible to create symlink pointing to a device ?
> My new disk
2014-05-06 14:09 GMT+02:00 Fred Yang :
> The journal location is not in ceph.conf, check
> /var/lib/ceph/osd/ceph-X/journal, which is a symlink to the osd's journal
> device.
Symlink are pointing to partition UUID this prevent the replacement
without manual intervetion:
journal -> /dev/disk/by-pa
Hi!
I'm not a specialist, but I think it will be better to move journals to other
place first (stopping each OSD, moving it journal file to a HDD, and starting
again), replace SSD and move journals to a new drive, again, one-by-one. The
"no-out" mode can help.
Pavel.
06 мая 2014 г., в 14:34
On May 6, 2014 7:12 AM, "Gandalf Corvotempesta" <
gandalf.corvotempe...@gmail.com> wrote:
>
> 2014-05-06 13:08 GMT+02:00 Dan Van Der Ster :
> > I've followed this recipe successfully in the past:
> >
> >
http://wiki.skytech.dk/index.php/Ceph_-_howto,_rbd,_lvm,_cluster#Add.2Fmove_journal_in_running_
2014-05-06 13:08 GMT+02:00 Dan Van Der Ster :
> I've followed this recipe successfully in the past:
>
> http://wiki.skytech.dk/index.php/Ceph_-_howto,_rbd,_lvm,_cluster#Add.2Fmove_journal_in_running_cluster
I'll try but my ceph.conf doesn't have any "osd journal" setting set
(i'm using ceph-ansibl
I've followed this recipe successfully in the past:
http://wiki.skytech.dk/index.php/Ceph_-_howto,_rbd,_lvm,_cluster#Add.2Fmove_journal_in_running_cluster
On May 6, 2014 12:34 PM, Gandalf Corvotempesta
wrote:
>
> Hi to all,
> I would like to replace a disk used as journal (one partition for eac
If you have dedicated disk for Journal, that you want to replace - consider
(this may be not optimal, but crosses my mind...) stoping OSD (if that is
possible), maybe with "no-out" etc, then DD old disk to new one, and just
resize file system and partitions if needed...
I guess there is more elega
2014-05-06 12:39 GMT+02:00 Andrija Panic :
> Good question - I'm also interested. Do you want to movejournal to dedicated
> disk/partition i.e. on SSD or just replace (failed) disk with new/bigger one
> ?
I would like to replace the disk with a bigger one (in fact, my new
disk is smaller, but this
Good question - I'm also interested. Do you want to movejournal to
dedicated disk/partition i.e. on SSD or just replace (failed) disk with
new/bigger one ?
I was thinking (for moving jorunal to dedicated disk) about changing
symbolic links or similar, on /var/lib/ceph/osd/osd-x/journal... ?
Regar
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?
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