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April 1996, Week 3

HP3000-L@RAVEN.UTC.EDU
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Subject:
Re: File Access by LDEV
From:
Mike Hornsby <[log in to unmask]>
Reply To:
Mike Hornsby <[log in to unmask]>
Date:
Wed, 17 Apr 1996 07:19:13 -0400
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text/plain (28 lines) 
An approach that I have used is to first ask, why so much disc io?
 
Use glance and/or filerpt to build a short list of the most accessed files.
 
Most of the time these files will be TurboImage data sets. Use HOWMESSY or
DBLOADNG to check out the data bases. The master data sets should be
examined for max blocks. Detail data sets should be examined for elongation
of chains (including the delete space chain). And of course any sorted
paths are always a suspect for creating unwanted disc io.
 
hth
 
 
 
 
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