RE: why cum ptf apply faster than predicted? -- MIDRANGE-L

We installed a cumulative PTF package ages ago on our little steam powered 600. It took 3 hours less than the cover letter estimated and we didn't find any problems. We were very happy, we got half of our Sunday back!

Gary

-----Original Message-----
From: Steve Richter [mailto:srichter@AutoCoder.com]
Sent: 15 May 2001 16:33
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

the history log says:

Loading of PTFs started.

Loading of PTFs completed successfully.
Marking of PTFs for delayed application started.
Marking of PTFs for delayed application completed successfully.
PTFs installed successfully, but actions pending.
Apply PTF started.
Applying of PTFs for product 5769999 completed successfully.
Applying of PTFs for product 5769SS1 completed successfully.
Applying of PTFs for product 5769AS1 completed successfully.
Applying of PTFs for product 5769DG1 completed successfully.
Applying of PTFs for product 5769JC1 completed successfully.
Applying of PTFs for product 5769JV1 completed successfully.
Applying of PTFs for product 5769PM1 completed successfully.
Applying of PTFs for product 5769PT1 completed successfully.
Applying of PTFs for product 5769PW1 completed successfully.
Applying of PTFs for product 5769QU1 completed successfully.
Applying of PTFs for product 5769RG1 completed successfully.

Applying of PTFs for product 5769TC1 completed successfully.
Applying of PTFs for product 5769XE1 completed successfully.
Applying of PTFs completed.
Initialize System (INZSYS) started.
Initialize System (INZSYS) processing completed successfully.

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