Hello, after migrating our Fiber Channel to a new Ovirt 4.2
environment, we over the years and through experimenting and mistakes
have ended up with some stale LVM's/disks on our fibre channel storage
that Ovirt no longer is able to manage correctly or is unaware of. I am
looking for a reliable to way to do a few different things.
The first is figuring out precisely what LVM ids belong to a VM and is
being used by that VM.
The second is figuring out if a LVM I have found on the Storage domain
is being used at all by any VM or if ovirt is even aware of it.
I have fumbled around a bit. And using a combination of the following I
have been able to figure out some of them. But now I am finding
information that does not match or may not be correct or I am
interpreting the data wrong. Anyway this is a big deal, because we want
to remove the stale unused LVMs and it would obviously be disastrous if
I deleted the wrong LVM from the FC.
So I know its not recommend but since I am not actually telling
vdsm-client to do anything other than get information I figure its
harmless. So here is what I have found so far.
*vdsm-client Host getVMFullList vmname=<VM_NAME_HERE> | grep volumeID*
*lvs | grep <noted volumeID here>*
With the above I have had some success verifying what LVMs a device is
using. However now I am having trouble figuring out a particular windows
server VMs LVM id's.
what I want to know is there a better way?
Also two more things.
You could call these feature requests, however it would be nice if there
was a way to see all the unused LVMs on a storage domain that are not
Tied to a VM. And it would also be nice to be able to remove un-imported
VMs that reside on a storage domain without importing them.
Anyway trying to get rid of un-imported vms and getting rid of unused
LVMs has been a chore. I wish there was an easier way.
--
Jacob Green
Systems Admin
American Alloy Steel
713-300-5690
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