One of my colleague has wrongly setup the policy to 3 weeks instead of 5 weeks. Then I extend the expired date of the tape (and the images) using bpexpdate. But when i did a vmquery I found out the vault return date is not change. Is it possible to change it using command? How?
bpexpdate makes change in the image-level, not on the tape.
For vault, you will need to do vmchange. So I take it you want to change the "vault return (from offsite) date", is that right?
Check out this command:
(Change the date when a volume returns from the vault)
vmchange [-h <EMM_server> | <volume_database_host>] -vltreturn mm/dd/yyyy HH:MM: SS -m <media_id>