At 11:55 +0000 on 10/11/2012, Hervey Martinez wrote about Re: DFHSM
Recalls and Tape:
If you have CRQ(Common Recall Queue) set up, then HSM will "look
ahead" and recall all files that are on the same tape. Also, with
CRQ, you can limit which LPARS will perform recalls and limit them
in that manner and all recalls will be routed to that LPAR.
Otherwise, the recalls happen one at a time in a FIFO manner.
Regards,
Hervey
Thank You. Looks like CRQ is the right way to go since it insures
that once a tape has been mounted, it will be used to restore all the
files on that tape before moving on to another tape. I can see that
this has a downside since a high priority recall can be postponed
since it is coming from a different tape (a situation that might not
occur with a FIFO if there was the ability to insert the request at
the top of the queue). You note that CRQ can restrict which LPAR does
the recall. Can it be set to allow more than one LPAR to run the
recalls (each with its only tape volume to process).
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