I'm guessing that somehow the GDG base is the differentiator as I've
seen the same sequential behavior as you in allocating multiple,
disparate datasets. 

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of O'Brien, David W. (NIH/CIT) [C]
Sent: Monday, April 09, 2007 11:22 AM
To: [email protected]
Subject: Re: Recalling GDG generations

That's interesting because on my 1.4 system, HSM recalls invoked by
Iefbr14 are done sequentially as each dataset is allocated by Jes. I
have not tried nor observed how a base gdg is handled. 

________________________________

From: Pommier, Rex R. [mailto]
Sent: Mon 4/9/2007 12:00 PM
To: [email protected]
Subject: Re: Recalling GDG generations



1.4.  

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of O'Brien, David W. (NIH/CIT) [C]
Sent: Monday, April 09, 2007 10:11 AM
To: [email protected]
Subject: Re: Recalling GDG generations

Rex,

What release of Zos are you on?

________________________________

From: Pommier, Rex R. [mailto:]
Sent: Mon 4/9/2007 11:05 AM
To: [email protected]
Subject: Re: Recalling GDG generations



 Actually I just tried this (the IEFBR14 job) because I have seen the
issue that Gil mentioned, where HSM recalls 1 dataset at a time for a
normal batch job.  I just recalled 31 generations out of a 91 generation
GDG. I thought it would single reload the migrated generations but it
didn't.  Using the IEFBR14 job, HSM grouped the datasets by tape, and
reloaded all the generations that were on that tape, then while
rewinding tape 1, went to tape 2 and loaded all the generations on that
tape.  A pleasant surprise.

Now that I learned something, can I go home?  :-)

Rex

BTW, my MAXRECALLTASKS is 5 and my TAPEMAXRECALLTASKS is 2.

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