Am 09.07.2015 um 19:35 schrieb Wido den Hollander:
On 07/09/2015 09:15 AM, Stefan Priebe - Profihost AG wrote:
Am 08.07.2015 um 23:33 schrieb Somnath Roy:
Yes, I am able to reproduce that too..Not sure if this is a bug or change.
That's odd. Can someone from inktank comment?
Not from Inktank, but here we go.
When you add a OSD again it has to match the OSDs UUID as in the OSDMap.
So when running mkfs for the OSD run it like this:
$ ceph-osd -i <id> --mkfs --mkjournal --keyring /path/to/keyring
--osd-uuid <uuid>
You can find the UUID in the OSDMap:
$ ceph osd dump|grep osd\.<id>
At the end you'll find the UUID of that OSD.
Without a matching UUID the OSD will refuse to start.
The OSD stores it's UUID in the datadir in the 'fsid' file.
Great!!
Thanks!
Stefan
Wido
Thanks & Regards
Somnath
-----Original Message-----
From: Stefan Priebe [mailto:[email protected]]
Sent: Wednesday, July 08, 2015 1:09 PM
To: Somnath Roy; ceph-users
Subject: Re: [ceph-users] replace OSD disk without removing the osd from crush
Hi,
Am 08.07.2015 um 22:03 schrieb Somnath Roy:
Run 'ceph osd set noout' before replacing....
sure but that didn't worked since firefly for me.
I did:
# set noout
# ceph stop osd.5
# removed disk
# inserted new disk
# format disk and mount disk
# start mkjournal mkkey mkkfs
# remove old osd auth key add new key
I can start the osd but i never comes up.
It only works for me if i completely remove the osd and create a new one:
ceph osd crush remove osd.5
ceph auth del osd.5
ceph osd rm osd.5
ceph osd create
...
Stefan
-----Original Message-----
From: ceph-users [mailto:[email protected]] On Behalf Of Stefan
Priebe
Sent: Wednesday, July 08, 2015 12:58 PM
To: ceph-users
Subject: [ceph-users] replace OSD disk without removing the osd from crush
Hi,
is there any way to replace an osd disk without removing the osd from crush,
auth, ...
Just recreate the same OSD?
Stefan
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