Hi Al! Did it take into account Sync Rem Copy (PPRC and the like)? I don't 
even remember if PPRC had been released back then.

Cheers, Martin

Martin Packer,
zChampion, Principal Systems Investigator,
Worldwide Banking Center of Excellence, IBM

+44-7802-245-584

email: martin_pac...@uk.ibm.com

Twitter / Facebook IDs: MartinPacker
Blog: 
https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker



From:   Al Sherkow <a...@sherkow.com>
To:     IBM-MAIN@listserv.ua.edu, 
Date:   04/21/2013 07:50 PM
Subject:        Re: SMF42 subtype 6 interpretation
Sent by:        IBM Mainframe Discussion List <IBM-MAIN@listserv.ua.edu>



Yes the times are in uses of 128 microseconds. 

If you are a member of CMG or are willing to register on their website you 
can find my 1998 paper "DOES YOUR INSTALLATION HAVE HALF-SECOND I/O 
RESPONSE TIME? (A Closer Examination of Disconnect Time)". I believe that 
paper first explored how to use the SMF 42-6 data to better understand 
response time for cache hits and cache misses. 

Hard to believe that was 15 years ago that I did that work. 


Al Sherkow

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