On Tue, 18 Oct 2005 14:52:58 -0500, McKown, John
<[EMAIL PROTECTED]> wrote:

>Many people now are saying that DASD is so cheap that even using HSM to
>migrate to ML2 is counter productive. Just leave it on ML1 and make ML1
>very, very large. Or don't even migrate stuff at all.
>

Hmmm... just the opposite.  Why push all that data around from disk
to disk and add the CPU overhead of compression?  Instead of "ML1 very
very large", make that "referenced days until migrate" large (FSVO large)
and migrate directly to ML2.  Tape migration has it's place (especially
with the large capacity of tape now) but it doesn't make sense to
constantly migrate and recall the same data.

Didn't we just discuss this recently?

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America and Farmers Insurance Group
mailto: [EMAIL PROTECTED]
Systems Programming expert at http://Search390.com/ateExperts/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html

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