tverkade opened a new issue, #12761:
URL: https://github.com/apache/cloudstack/issues/12761
### problem
I'm running into an issue in Cloudstack where when using ceph RBD as primary
storage, and having snapshot-based mirroring in Ceph, I cannot delete and
expunge the image without manually disabling mirroring:
```
Request failed. (530)
Failed to expunge the volume Volume
{"id":1751,"instanceId":null,"name":"TV-REP-02","uuid":"6ad0914e-9172-45d3-87a0-1f34661b1d3f","volumeType":"DATADISK"}
in Primary data store : com.cloud.utils.exception.CloudRuntimeException:
com.ceph.rbd.RbdException: Failed to find out if snapshot
.mirror.primary.625a7cf1-1946-48a3-8fc3-5a4de98bec29.b8365252-c64b-4862-850b-cb29e333ceb7
is protected - No such file or directory
```
### versions
ACS: 4.22.0.0
KVM: Ubuntu 22.04
Ceph: version 18.2.7 (6b0e988052ec84cf2d4a54ff9bbbc5e720b621ad) reef (stable)
### The steps to reproduce the bug
1. Create a disk image in Cloudstack on the RBD storage pool
2. Enable mirroring on the image in ceph
3. Either define a schedule for snapshots at the pool level, define a
snapshot schedule for the image itself, or manually initiate a snapshot of the
image in ceph
4. Attempt to delete the image in Cloudstack with the expunge flag enabled
(or without, it will just fail to delete it later)
5. Get the error
`Failed to find out if snapshot <Image and snapshot IDs> is protected - No
such file or directory`
### What to do about it?
It would be excellent if when trying to delete an RBD image from Cloudstack
if the command could be passed through first determine whether or not mirroring
is enabled, and if so, disable it prior to attempting to delete it:
```
rbd info <pool>/<image ID>
rbd mirror image disable <pool>/<image ID>
```
And then run the actual delete command.
So for example, if the image ID is `df1e2a8b-00ff-4854-b2d4-f8a2d685fa1e'`:
```
root@ceph:/# rbd info cloudstack/df1e2a8b-00ff-4854-b2d4-f8a2d685fa1e
rbd image 'df1e2a8b-00ff-4854-b2d4-f8a2d685fa1e':
size 25 GiB in 6400 objects
order 22 (4 MiB objects)
snapshot_count: 2
id: 3ad0e7be094cd5
block_name_prefix: rbd_data.3ad0e7be094cd5
format: 2
features: layering, exclusive-lock, object-map, fast-diff,
deep-flatten, journaling
op_features:
flags:
create_timestamp: Fri Mar 6 20:14:52 2026
access_timestamp: Fri Mar 6 20:14:52 2026
modify_timestamp: Fri Mar 6 20:14:52 2026
journal: 3ad0e7be094cd5
mirroring state: enabled
mirroring mode: snapshot
mirroring global id: a29acb3e-0d54-4de9-ac62-c98e435462ca
mirroring primary: true
root@ceph:/# rbd mirror image disable
cloudstack/df1e2a8b-00ff-4854-b2d4-f8a2d685fa1e
Mirroring disabled
```
It would also be excellent to include an option to enable mirroring on an
image when it's created in Cloudstack, but that's a little bit outside of the
scope of this issue.
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