The answer likely varies by the TMS in use. CA-1 will keep the tape until every dataset on it is expired. This can be confusing as the volume record is also the first file on the tape. CA-1 will adjust its expiration to be equal the highest on the tape. If you manually expire the first file (volume record) then the entire tape will scratch regardless of the expiration of the rest of the files. That is one reason that I am very carful about changing the expiration of volume records.
In CA-1 there is an expiration called CATALOG. It will expire the file when it is no longer cataloged. If a cataloged tape file has a Julian expiration, then uncataloging the file will not affect expiration. But scratching the tape will uncatalog the file. Thank you and have a Terrific day! Jonathan Goossen, DTM ACT Mainframe Storage Group Personal: 651-361-4541 Department Support Line: 651-361-5555 For help with communication and leadership skills checkout Woodwinds Toastmasters IBM Mainframe Discussion List <[email protected]> wrote on 03/29/2012 08:51:19 AM: > From: Uriel Carrasquilla <[email protected]> > To: [email protected] > Date: 03/29/2012 08:52 AM > Subject: Re: catalogued datasets in tapes and expiration dates > Sent by: IBM Mainframe Discussion List <[email protected]> > > Let's say I have a tape with multiple datasets inside. > Some datasets may be catalogued, some may not. > I can understand the once not catalogued when they expire they no > longer hold the tape from going to the scratch pool. > But what about those cases when the catalogued datasets hit their > expiration date? what happens? > am I also correct in assuming that the entire tape with all the > stacked datasets is being held until the last dataset in it expires? > Please share your thoughts. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN This e-mail message and all attachments transmitted with it may contain legally privileged and/or confidential information intended solely for the use of the addressee(s). If the reader of this message is not the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, forwarding or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message and all copies and backups thereof. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
