How to find the volumes used in VSAM file.

VU is the command to verify the Volumes Used in  a VSAM file. you have to eneter in 3.4

VU   PDS.PDS.XXXX.

It will give the result as 

PDS.PDS.XXXX.             XX.X% of XXX tracks in   X extent
Allocated: X,XXX,XXX KB, Used: X,XXX,XXX KB         (XXXX cylinders,  X tracks)