Chris Suich created CLOUDSTACK-5172:
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Summary: Removing disks from VMWare VMs with snapshots causes
problems
Key: CLOUDSTACK-5172
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-5172
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Components: Snapshot, VMware
Affects Versions: 4.3.0
Reporter: Chris Suich
Fix For: 4.3.0
We currently don’t allow volumes to be attached to VMs with snapshots and
allowing volumes to be detached causes quite a bug:
1) Attach a data disk to a VM
2) Snapshot the VM
3) Detach the data disk
4) Attempt to restore the VM from the snapshot — FAILS since the data disk is
no longer there, although it is expected to be
5) Attempt to re-attach the volume to the VM — FAILS since you cannot attach
volumes to VMs with snapshots
6) Attempt to delete the VM snapshot — FAILS since the data disk is no longer
there, although it is expected to be
I have verified the above steps on VMWare, however Xen does not appear to fail
on step 4, presumably because VMWare handles snapshots quite differently than
Xen.
After discussion on the dev list, it sounds like the proper course of action
would be to prohibit disks from being detached from VMWare VMs with snapshots.
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