Hi Jeff,

You can try "dsmadmc -id=xxxx -pa=xxxx q occu nodename" to check the
filespace name, then
dsmc q baclup "/filespace/*" -inact -sudir=yes -virtualn=xxxxx
-password=xxxx
on the filespace to check if old backup is gone.
on the filespace to check if old backup is gone.

You can refer to redbook SG24-4335 "Using ADSM to Back Up Databases" for
more info.

Regards,
Eric Tang