Is 12 hours enough time !  Well the unequivocal answer is - It Depends !
Read the cover letters for the SETDSKCLN PTF's for a time estimate.   
I would think that 12 hours should suffice for you.
As for going to V3R1 then V3R2 in two steps - that's a TOTAL waste of time.
Also - DON'T try to take a shortcut to get the machine back to the users
after installing V3R2 by 'leaving the PTF cum package install until later'.
That's a BIG mistake (not that you were planning on doing that - right  
:-)  ).
NEVER turn a machine back for ║roduction use after a release upgrade without
first applying the latest PTF cum package.  And your first one could take 4
or 5 hours.  Still, you SHOULD be able to make it in your 12 hour window as
long as you don't have any problems.  
You COULD do the upgrade & PTF's on Saturday, and then a complete system
save on Sunday (don't put it off too long !).  At the very least you MUST do
a SAVSYS command ASAP after the upgrade & PTF cum package install.  The 
SAVSYS shouldn't really take more than around 45 minutes - unless you 
have  some unusual circumstances (like maybe THOUSANDS of user profiles).




On Fri, 17 Oct 1997, Lou Schmaus wrote:

> Al Barsa, Jr. wrote:
> 
> > <snip>
> 
> >   You put on the PTF, run the command and then do a LONG IPL.
> >
> > We recommend to customers that V3R2 be put on two consecutive
> > Saturdays.
> > The PTF for SETDSKCLN and the licensed internal code space extension
> > PTF on
> > the first,  the release itself on the second.
> > <snip,snip>
> 
> Al,
> 
> Is that a LONG IPL, or a LONNNGGGG IPL? We have a client who is at
> V3R0M5, and would like to get them to V3R2. But they have a 8-10 hour
> overnight job that must run every day(they are a retail store chain). On
> a Saturday morning, I would have from approx. 8 AM to 9 PM to get the
> SETDSKCLN and PTF installation done. On Sunday I have even less time,
> because of all their end-of-week analysis stuff.
> 
> They have a model 300 with 64meg memory and 14 gig storage, with a VERY
> high (85-90%) disk utilization, although we are working on getting more
> disk or purging enough history to do the upgrades. Would a 12-hour
> period be enough to finish getting the system ready for the upgrade, not
> to mention enough time to do the upgrade itself?
> 
> Also, would doing two upgrades make any difference? Going first from
> V3R0M5 to V3R1, and then to V3R2?
> 
> --
> Lou Schmaus
> Creative Computer Associates, Inc.
> Parlin, NJ 08859
> lschmaus@home.com
> 
> --
> The opinions expressed here are not necessarily those
> of my employer, unless it is billable.
> 
> 
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