[ovirt-devel] OVF_STORE volumes are not updated

Christopher Pereira kripper at imatronix.cl
Mon Oct 5 08:35:17 UTC 2015


Hi,

I noticed that OVF_STORE volumes are not generated periodically as 
expected [1].
It seems like the OVF_STORE volumes are only generated when the Storage 
Domain is detached from Engine, which is not feasible if we want to keep 
the VMs running.

1) Is there any way to force the OVF_STORE volume creation without 
detaching the Storage Domain?

This would be very usefull for disaster recovery, since Storage Domains 
can be backed up and VM can be reimported.
But if the OVF_STORE volumes are not updated, critical information like 
the ID of the VM active snapshot will get lost.
If the VM is restored with a previous snapshot (not the last one), all 
information written after the last snapshot known by the OVF_STORE will 
get lost.

2) On the other hand, the only way I know to re-read the OVF_STORE 
content with the VM information contained in a Storage Domain, is by 
detaching and re-attaching it.
I wonder if there is also any way to re-read the OVF_STORE?

[1] : This is can be verified very easily by changing a running VM 
properties (change its name or create a snapshot), copying the whole 
storage domain and importing it into another Engine (POOL_UID and 
CHECKSUM must be removed from metadata in order to be able to attach to 
another Datacenter).

PS: I'm on 3.6 RC. 1.



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