Thanks, Sage. This is what I was looking for, but what version of
ceph do I need for this to work (it isn't there in Argonaut)? See
below:
# ceph-osd -c /etc/ceph/ceph.conf --fsid
8296cc23-9c11-44d7-84c1-16866ef9c4f7 -i 50 --mkfs --osd-fsid
e1097bd8-c931-4e2e-8ccb-332a954adace
--conf/-c Read configuration from the given configuration file
-d Run in foreground, log to stderr.
-f Run in foreground, log to usual location.
--id/-i set ID portion of my name
--name/-n set name (TYPE.ID)
--version show version and quit
--debug_ms N
set message debug level (e.g. 1)
2012-08-21 23:26:50.774858 7f1be9ac1780 -1 unrecognized arg --osd-fsid
2012-08-21 23:26:50.774864 7f1be9ac1780 -1 usage: ceph-osd -i osdid
[--osd-data=path] [--osd-journal=path] [--mkfs] [--mkjournal]
[--convert-filestore]
2012-08-21 23:26:50.774915 7f1be9ac1780 -1 --debug_osd N set
debug level (e.g. 10)
# ceph --version
ceph version 0.48.1argonaut (commit:a7ad701b9bd479f20429f19e6fea7373ca6bba7c)
Tommi - Thank you for the suggestion of ceph-disk-prepare and
ceph-disk-activate, but they work at too high of a level for our
usage. We need finer control of the block devices.
Regards,
Mandell Degerness
On Tue, Aug 21, 2012 at 11:15 AM, Sage Weil <sage@xxxxxxxxxxx> wrote:
> On Tue, 21 Aug 2012, Mandell Degerness wrote:
>> OK. I think I'm getting there.
>>
>> I want to be able to generate the fsid to be used in the OSD (from the
>> file system fsid, if that matters). Is there a way to inject the fsid
>> when initializing the OSD directory? It doesn't seem to be
>> documented. The alternative would require that we mount the OSD in a
>> temp dir to read the fsid file, determine the OSD number, and then
>> re-mount it where it belongs, which seems the wrong way to go.
>
> You can feed in the fsid to ceph-osd --mkfs with --osd-fsid <uuid>.
>
> sage
>
>>
>> Regards,
>> Mandell Degerness
>>
>> On Mon, Aug 20, 2012 at 4:26 PM, Tommi Virtanen <tv@xxxxxxxxxxx> wrote:
>> > On Mon, Aug 20, 2012 at 3:53 PM, Mandell Degerness
>> > <mandell@xxxxxxxxxxxxxxx> wrote:
>> >> We're running Argonaut and it only has the OSD id in the whoami file
>> >> and nothing else.
>> >
>> > My bad, I meant the file "fsid" (note, not "ceph_fsid").
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