How can I edit tapes already set to expire INFINITY?
I have recently taken over maintenance of a previously configured NetBackup 6.5.5 server. There are numerous tapes that have their expiration date set as INFINITY, which obviously means that they will never expire. Management has recently agreed a new retention policy that will allow me to expire tapes in months rather than years, although some with classified data will still need to be kept for 7 years from the date of backup.
How can I update these tapes to change the expiration date from INFINITY to something more realistic?