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import existing cinder volumes from ceph into newly installed openstack

asked 2020-04-23 01:52:09 -0500

gtr_kebab gravatar image

Hi I wiped my install of openstack, so basically its showing no instances, volumes, images anymore, basically factory reset. However the ceph cluster has not been touched and still has a few cinder volumes that I would like to re-import and use on some instances as data drives.

I can't seem to find a way to import an existing cinder volume from ceph which I can see still exists as an RBD image in there.

I know it probably possible to mount the drives to the host and copy data manually but I thought there might be a more elegant way of just telling cinder to re-import them.

Many thanks,

Jon.

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Not sure if it works with Ceph, but this is the API you are looking for: https://docs.openstack.org/api-ref/bl....

This is equivalent to the command cinder manage as far as I know.

Bernd Bausch gravatar imageBernd Bausch ( 2020-04-23 03:31:06 -0500 )edit

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answered 2020-04-23 16:17:07 -0500

gtr_kebab gravatar image

Was easier than I thought! Just had to do the following,

cinder manage --name=newdata300 p70@rbd-1#rbd-1 volume-5029f6d0-753b-417d-991d-2ea4f61bbe96 where volume-5029f6d0-753b-417d-991d-2ea4f61bbe96 is the name of the existing rbd image I wanted to import (found that in the ceph UI).

p70@rbd-1#rbd-1 I just got from running OpenStack volume list and OpenStack volume show on one of the volumes. It's basically stating the ceph host and the rbd pool name.

Cheers! Jon.

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Asked: 2020-04-23 01:52:09 -0500

Seen: 44 times

Last updated: Apr 23