Depending on the tape retention parameters in the TS7770 itself, once HSM releases the tapes (and backing disk storage) for reuse, the TS7770 may retain the tapes and storage for a few more days. In your virtual tape area on the VTS GUI, check the categories and look at the scratch categories. If any says "x Days Hold", you will need to wait that additional time before the VTS will release the tapes.
Rex -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Mike Schwab Sent: Thursday, August 22, 2024 12:09 AM To: [email protected] Subject: [EXTERNAL] Re: HSM question There is usually a delay of a few days to allow undeleted of the tape volumes. Best to set an retention period so they expire after so many days / after n versions are created. On Thu, Aug 22, 2024 at 12:03 AM גדי בן אבי <[email protected]> wrote: > > Hi, > We use HSM to backup datasets to virtual tape on a TS7770. > > We are getting close the TS7770's capacity and want to reduce the capacity > used by HSM. > > The current strategy is to find backups we no longer want/need, delete the > from HSM, and then use RECYCLE command to merge the tapes that are not full. > > After we've done that, the used capacity that the TS7770 reports is not > reduced. > > My theory is that HSM does not release the tapes (and cache space they take > up) when they are empty. > > Is this correct? > > Is there a way to tell HSM to release empty tapes to the general SCRATCH pool? > > Gadi > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
