RE: why cum ptf apply faster than predicted?

[Dwayne Lindner <Dwayne.Lindner@xxxxxxxxxxxxxxxxxxxxxx>]

There are some situations where loading and applying PTF's can take longer -
particular if you need certain prerequisites, if some PTF's are applied they
need to be unapplied before the new ones go on, it depends how many are
superseded, what group PTF's you have installed etc. etc.

There are so many variables it's hard to give an indication of how long it
will take, thus you end up with a blanket time frame that in 95%+ of cases
will be overstated - IBM are basically covering themselves, that's all.

Regards,
Dwayne Lindner 
Senior Network Analyst 
Wesfarmers Rural Information Technology 
184 Railway Parade, Bassendean WA 6054 
Ph: (08) 9273 5365    Mob: 0407 386 693 
Email: dwayne.lindner@writ.wesfarmers.com.au 

-----Original Message-----
From: Steve Richter [mailto:srichter@AutoCoder.com]
Sent: Tuesday, 15 May 2001 23:33
To: MIDRANGE-L@midrange.com
Subject: why cum ptf apply faster than predicted?


greetings,

Did a cummulative ptf load after a v4r4 install.

The cummulative ptf's were on 3 cd's. The system is a very fast, non geared
down 720.

The cover letter said the ptf process would take from 4 to 8 hours.

But it actually took 1 hour to load, apply and complete the auto ipl.  (
17:57:31 to 18:47:50 )

The history log msgs ( listed below ) show no indication of error.

What does ibm base its time estimates on?

This is not a trivial question.  Misstating the estimate results in much
wasted time double and triple checking to make sure that nothing was missed,
that the system is running ok.


Steve Richter

                                                                
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