Sometimes, when analysing the “VM Disks” on your NAS, you might see a duplicate. For example, you might see this:
- vm-202-disk-0
- vm-202-disk-1
The format might be raw, and the sizes may often be exactly similar.
This might confuse you if your strategy is to solely deploy a single disk for most of your workloads.
Upon closer inspection of the vm (i.e. 102), you’ll be even more surprised to see that the disk is not attached to the VM. Simply no trace of it. You might even see this: vm-102-disk-1 when you expected vm-102.disk-0
The next step is to evaluate your NAS. When logging into your NAS, there might be iSCSI sharing UI traces that the disk is not linked anymore, e.g., on TrueNAS Scale, you’ll see this:
Solution?
Don’t do this unless you have complete backups.
Delete the disk.