If a tape dataset name is 17 characters or longer (and the last 17
characters do not change), I believe that it can be renamed, using a DEFINE
NVSAM command (with DEVTYPE, VOLUMES and optionally FSEQN), along with the
requisite DELETE '<dsn>' NOSCRATCH command. At least with CA-1, there are
TMC update utilities TMSUPDTE and TMSUDSNB ("restricted use" though), as
well, to consider using with this activity, where any DSN length is a
candidate for change.
Scott Barry
SBBWorks, Inc.
On Fri, 5 Nov 2010 14:37:21 -0700, Ulrich Krueger <u...@pacbell.net> wrote:
>Martin,
>Unless something changed since the last time I looked at this ...
>You cannot rename a dataset on tape.
>1) Your tape management system probably wouldn't like it.
>2) The physical tape label info can not be changed after the tape has been
>created.
>
>AFAIK, your only way to "rename a tape dataset" is to copy it to a new tape.
>
>
>Regards,
>Ulrich Krueger
>
>-----Original Message-----
>From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf
>Of Martin Packer
>Sent: Friday, November 05, 2010 12:54 PM
>To: IBM-MAIN@bama.ua.edu
>Subject: IDCAMS ALTER and GDGs - From A(0) to B(+1) - Relative Generations
>
>I'm looking at a customer batch job and they are rolling over 12 monthly
>files by 1 - the oldest going off to another data set on tape. They are
>doing this with ICEGENER copy steps. Each monthly file is a different GDG.
>Rather than do the actual copying I'd like them to explore using some form
>of rename.
>
>In this case it boils down to renaming FILE1(0) to FILE2(+1). IDCAMS ALTER
>will do it with hardcoded generations and versions. I checked this and
>that the structure of the target GDG was intact - by coding some JCL on my
>own system.
>
>However, I'd prefer not to have to recommend absolute generations and
>versions. Does anyone know how to do this with (0) and (+1)?
>
>Yes, I'm aware there may be some operational difficulties with this
>approach - we didn't keep n generations this way. I'm not convinced the
>customer actually wants to. I want to present them with options.
>
>Thanks, Martin
>
>Martin Packer,
>Mainframe Performance Consultant, zChampion
>Worldwide Banking Center of Excellence, IBM
>
>+44-7802-245-584
begin_of_the_skype_highlighting +44-7802-245-584 end_of_the_skype_highlighting
>
>email: martin_pac...@uk.ibm.com
>
>Twitter / Facebook IDs: MartinPacker
>
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