Renaming the Hard Disk in VM Settings?

Is it possible to rename the "name" of the virtual hard disks in the VM Guest Settings?

For example, when you add virtual hard disks, VMware defaults to something like:

Hard Disk 1

Hard Disk 2

Hard Disk 3

etc. etc.

Is there any way to add a label or something more meaningful so you know which one is which (otherwise you have to go into the guest OS and decipher some things)

The guest OS in this case is SLES11 SP1 64-bit, if it matters.

We're using VMware ESXi 5.1