Just curious how you select for migration base on size. Do you set
special management class based on primary space at allocation time? Or
are there HSM commands that help with this selection process?
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Mike Wickman
Technical Services
email mwickman at waddell dot com
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-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Ted MacNEIL
Sent: Thursday, July 24, 2008 4:56 PM
To: [email protected]
Subject: Re: [IBM-MAIN] HSM Recalls
>We do not migrate anything smaller than 5mb since the overhead of
migrating them and having them recalled later was greater than the cost
of just leaving them on disk!
I mentioned this on IBM-Main many years ago.
I was told I was full of s**t.
Back then, it was any dataset a cylinder (.8 MB) or smaller.
Now, I think even 5MB is probably small.
Analysis is required, but the concept is sound.
-
Too busy driving to stop for gas!
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