The TMC has two fields. Full tape dataset name
And a second field that contains the last 17 characters. Lizette > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Paul Gilmartin > Sent: Thursday, May 11, 2017 9:36 AM > To: [email protected] > Subject: Re: rename datasets > > On Thu, 11 May 2017 08:40:47 -0500, Scott Barry wrote: > > > >Any datasets on tape or all DASD (any with more than 17 character tape > dataset name?) TMC consideration possibly depending on the tape management > subsystem (i.e., CA-1 has a utility but last 17 characters are recorded in > the TMC)? Otherwise depending on security/authority, IDCAMS ALTER should > likely satisfy. > > > So renaming a tape data set might involve updating the HDR1 label? > > Let's not go there. Or not attempt a rename to alter those last 17 > characters. > > I'd expect TMC to record the entire 44 characters so it could deal with DSNs > identical in the last 17 but with different prefixes. > > -- gil > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
