What is your client level?
I ran into a similar problem on the 3.7.0.1 client. There is an APAR
IC24882, that is fixed in 3.7.2.01 (and higher).
If your client is already current, I would call Tivoli.
Here is some text from the apar:
++
This sounds like APAR IC24882. I recommend going to the 3.7.2 client, patch
level 3.7.2.19 in particular, or the 4.1.1 client, patch level 4.1.1.16 in
particular.. You can find them on our anonymous ftp site,
ftp.software.ibm.com. The directories are:
For 3.7.2.19:
/storage/tivoli-storage-managem