Check out partition type for data partition for ceph.
fdisk -l /dev/sdc
On 07/11/2016 04:03 PM, Dirk Laurenz wrote:
hmm, helps partially ... running
/usr/sbin/ceph-disk trigger /dev/sdc1 or sdb1 works and brings osd up..
systemctl enable does not help....
Am 11.07.2016 um 14:49 schrieb George Shuklin:
Short story how OSDs are started in systemd environments:
Ceph OSD parittions has specific typecode (partition type
4FBD7E29-9D25-41B8-AFD0-062C0CEFF05D). It handled by udev rules
shipped by ceph package:
/lib/udev/rules.d/95-ceph-osd.rules
It set up proper owner/group for this disk ('ceph' instead 'root')
and calls /usr/sbin/ceph-disk trigger.
ceph-disk triggers creation of instance of ceph-disk@ systemd unit
(to mount disk to /var/lib/ceph/osd/...), and ceph-osd@ (i'm not sure
about all sequence of events).
Basically, to make OSD autostart they NEED to have proper typecode in
their partition. If you using something different (like 'directory
based OSD') you should enable OSD autostart:
systemctl enable ceph-osd@42
On 07/11/2016 03:32 PM, Dirk Laurenz wrote:
Hello,
i'm new to ceph an try to do some first steps with ceph to
understand concepts.
my setup is at first completly in vm....
i deployed (with ceph-deploy) three monitors and three osd hosts.
(3+3 vms)
my frist test was to find out, if everything comes back online after
a system restart. this works fine for the monitors, but fails for
the osds. i have to start them manually.
OS is debian jessie, ceph is the current release....
Where can find out, what's going wrong....
Dirk
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