Rebooting a hung HVM in Citrix XenServer

# Rebooting a hung HVM in Citrix XenServer

1.
Find the UUID of the hung VM.
You can do this via the command line with ‘xe vm-list’ or via XenCenter.

2.
Find the Domain ID of the hung VM.
Run ‘list_domains’ from the command line, and match the UUID with the ID number
id |                                 uuid |  state
 0 | 2fe455fe-3185-4abc-bff6-a3e9a04680b0 |     R
47 | 267227f3-a59e-dafe-b183-82210cf51ec4 |    B
59 | 298817fb-8a3e-7501-11e0-045a8aa860ff |    B
60 | 46e3d5aa-2f02-dfdc-b053-9a8ac56ec5d1 |    B
61 | 16cf3204-eb17-5a12-e8d0-c72087bda690 |    B
62 | 1f9053b5-c6ca-40bb-504e-3017c37e7281 |      H
63 | ddaec491-097a-e271-362b-f2f985e26e4a |     R
65 | 55f3b225-4f65-d1ea-aa19-add44c5acce7 |    B
66 | 7adef6fd-9171-5426-b333-6fb1b57b8e60 |    B H
67 | 6046dc13-f70b-8398-56fb-069c22440a7c |    B
68 | f201cd94-a501-00c2-d21e-8c2f03ea167b |    B H
In our case, UUID 1f9053b5-c6ca-40bb-504e-3017c37e7281 is hung, which is Domain ID 62.

3.
Run destroy_domain on the Domain ID.
# /opt/xensource/debug/destroy_domain -domid 62

4.
The VM will still show itself as running, so now, we need to reboot it.
# xe vm-reboot name-label='name of the VM' --force

5.
The VM is now rebooted, and you can bring it up as if you had just pulled the plug.  That is, check for some disk corruption, etc.