Yesterday we've had three of our LUNs report 0Bs available which is causing some of our VMs to become inacessible. A talk to with VMWare showed that the LUNs aren't able to connected to our ESXi hosts at all, likely because of this.
All LUNs are from the same vol and aggregate.
Is there a possible way to reclaim some of the unused space in order to regain connectivity? Or some alternative way to access the data on the disks? My method of last resort would be to take one of the LUNs offline and delete it, but would that free up the space and allow the others to expand in size? Or would that even be worth it?
I'm very new to NetApp so sorry if these questions are beginner level!
Looks like our Aggregate and Volume are showing 0B available as well.
We don't have any snapshots.
Even though it would result in losing the data and VMs stored on it, would it be possible to delete a LUN to regain space, expand the aggregate with the freed up space and expand the volume, and allow access to the other two LUNs? My thinking is to expand the size on LUN that has the most important VM stored on it.
Or is this just crazy thinking? It's my last resort.
You did confirm that the LUN is set to not reserve space (thin provisioned basically), and the volume has no space guarantee? Also the snapshot reserve is at zero on everything?
If this system is sending AutoSupports, what is serial #? I'll review configuration to see if I can find anything else. Even if it isn't under active entitlements we should still be able to view AutoSupports.