On Wednesday, 15 September 2021 14:52:27 CEST nicolas@devels.es wrote:
Hi,
We're running oVirt 4.3.8 and we recently had a oVirt crash after moving too much disks between storage domains.
Concretely, one of the Storage Domains reports status "Unknown", "Total/Free/Guaranteed free spaces" are "[N/A]".
After trying to activate it in the Domain Center we see messages like these from all of the hosts:
VDSM hostX command GetVGInfoVDS failed: Volume Group does not exist: (u'vg_uuid: Usi3y8-S4eq-EXtl-FA58-MA3K-b4vE-4d9SCp',)
I tried putting the Storage Domain in maintenance and it fails with messages like:
Storage Domain iaasb13 (Data Center KVMRojo) was deactivated by system because it's not visible by any of the hosts. Failed to update OVF disks 8661acd1-d1c4-44a0-a4d4-ddee834844e9, OVF data isn't updated on those OVF stores (Data Center KVMRojo, Storage Domain iaasb13). Failed to update VMs/Templates OVF data for Storage Domain iaasb13 in Data Center KVMRojo.
I'm sure the storage domain backend is up and running, and the LUN being exported.
Any hints how can I debug this problem and restore the Storage Domain?
I'd suggest to ssh to any of the host from given data center and investigate manually, if the device is visible to the host (e.g. using lsblk) and eventually check /var/log/messages to determine where the problem could be.
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