How to find disk to extend if you have 20 same size disks?

Hi everyone,

I have a windows 2008 r2 VM, and it has 20 same size disks. All disks are vmdk disk on a single datastore.

How would you recognize which disk to extend/delete if required?

Please see captured images attached, disk properties from disk manager does not give any clue.

if disks are not formated in order how would you find it ?

Target id or lun id doesnt tell you anything

Thanks