I'd like to remove an unuseful media ID from a pool that could be reused in other pool.

Dear all,

My purpose is to reuse the unuseful media, however, I'm not sure my command is right or not to remove the unuseful media.

Ex: the unuseful media is called W100 with some data in A pool, I'd like to move it to Scratch.

So the W100 could be reused by other policies to other pools.

The command is bpexpdate -m W100 -d 0

Am i right? or GUI is helpful as well?

Please advise, thanks all.