Hi Raymond!
You are running into a known bug. APAR IC28349 fixes this problem and is
included in 3.7.4.6 which you can download from
ftp://service.boulder.ibm.com/storage/tivoli-storage-management/patches/serv
er/AIX/3.7.4.6/
By the way, 3.7 is no longer supported, you should consider upgrading...
Kindest regards,
Eric van Loon
KLM Royal Dutch Airlines