where you used "today=today-500" is saying you only want to delete entries
OLDER than 500 days ago... In other words, you are asking it to KEEP things
that are less than about 1.5 years, probably not what you want...
Use "del volhist t=dbb tod=today-7" or some number smaller than 500...
I only keep one weeks worth of tsm data base backups.
ALSO you can't delete the ONLY data base backup tape no matter how hard you
try.
TSM is very nice and won't let you shoot yourself in the foot...
hope this helps...

Dwight


-----Original Message-----
From: jiangguohong1 [mailto:jiangguohong1 AT ETANG DOT COM]
Sent: Thursday, February 20, 2003 8:18 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject:


hi,
in our practice application,i have a question for tivoli storage
manamger.the version of tsm software that we used is 5.1.0.0,in order to
protect tsm server database,we use the tsm administrator command "backup db
<BR>type=full devc=ltodevclass" to perform database full backup,the backup
database located into one scratch volume in ibm 3584 tape library,use the
command "q libv" to check the upon scratch volumes status that is dbbackup
status.i want to let the dbbackup volume turn into scratch or private
volume, in other words,as normally data backup.verify the volume history
file during performing "q volh" command,the following information is
contained:
database backup time:09/29/2002
i use "del volh type=dbb toda=today-500" and attemp to delete the dbbackup
volume in the
volume history file,the result shows that zero sequential volume history
entries were successfully deleted,then i use "q volh" command to verify the
volume history file,the entry that described database backup is always
exist,so i dont't delete the dbbackup volume. can you help me how to delete
the dbbackup volume?
please write back me ASAP.