Knowing Tapes are still on Rack SIL0 command

While refreshing from production to test we need backup tape of production.
How do you confirm that it is still on the rack or already valuted out:
Here is the command you need to fire on console:

/F SLS0,D VOL 800165

800165 is the volume number of the tape which you require.
the output is like:
RESPONSE=MVS1 SLS0600I VOLUME 800165 ; 00:00:04:02:23, UNSELECTED,RESPONSE=SCRATCH

Which means it is in the rack.

If you get any out like:Here I have searched for volume 100165

RESPONSE=MVS1 SLS0603I VOLUME(S) 100165 NOT IN ACS
which means it is not in the rack.

It's a proactive thing which we can follow to prevent any failure which is resulting from using tapes in current job.

Cheers...
Prakash
IBM Certified DB2 DBA.