PGM=ADDRDSU
Command CONSOLIDATE.

On Fri, Jun 26, 2015 at 11:43 AM, Paul Gilmartin
<[email protected]> wrote:
> I want to HMIGRATE a data set to consolidate extents.
>
> The data set is routinely browsed by several users.  HMIG fails.
>
> I'm quite willing to get in line and wait my turn.  Something like
> IKJEFT01; DISP=OLD; HMIGRATE DSN.  But will HMIG collide with
> my own ENQ?
>
> Is there a better way to defragment?  Reallocate; copy; delete;
> rename?  I wish z/OS had a preemptive and atomic RENAME.
> With LUW isolation.
>
> And it's a PDSE routinely browsed from several systems; we
> can't sysplex all of them.  Updates routinely fail.
>
> One user has suggested using UNIX files instead of Classic.  (See!
> I'm not the only one!)
>
> I briefly considered using generated opaue DSNs and manifest
> ALIASes.  But that's ugly because of the lurking deferred ABENDs.
> Is there any way to force an ENQ on the RELATED DSN at
> job initiation?  (Would JES3 do that?)
>
> -- gil
>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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