RE: Long running backups to a 3590-B11

["Shaw, David" <dshaw@xxxxxxxxxxx>]

Ron,

Al _might_ give a different answer, but I doubt it.  I've checked a number of
PTF's that I've been concerned with over the last few months.  Most made it into
the group PTF packages pretty quickly (less than 3 months), but, with the
exception of PTF's in the HIPER group, took more than 6 months after that to
show up on a cume.  There are also PTF's of limited interest which never get on
a group package but do eventually make it to a cume.  And then there's the ones
that never get packaged at all...

Dave Shaw
Spartan International, Inc.
Spartanburg, SC

> -----Original Message-----
> From: Ronald Sposito [mailto:raspo@slomins.com]
> 
> Al, can I assume that Group PTFs are included in cumes ?
> Ron
> 
> ----- Original Message -----
> From: "Al Barsa, Jr." <barsa2@ibm.net>
> To: <MIDRANGE-L@midrange.com>
> Sent: Thursday, April 06, 2000 9:12 AM
> Subject: Re: Long running backups to a 3590-B11
> 
> 
> > At 10:58 AM 04/06/2000 +0100, you wrote:
> > >Has anyone else had a similar problem -
> > >
> > >I have a system with 102GB of DASD, running at about 80% 
> used.  It has
> > >regularly taken between 11 to 13 hours to do a full system 
> backup each
> > >weekend (SAVSYS + NONSYS + SAVDLO + SAV (ifs)).  All of a 
> sudden, the
> > >backups started taking 15/16 hours.  I have recently 
> upgraded to v4r3
> (from
> > >v4r1), initiallly the backups jumped to 28 hours!!  IBM 
> recommended we
> apply
> > >additional PTFs, a series of group-ptf packages, this cut 
> the 28 to 18
> but
> > >this is still very painful to system availablility, as you 
> can imagine.
> > >
> > >I am liaising with IBM and with the CE; I've stopped 
> saving access paths,
> > >I'm getting staff to delete old/redundant data, what more 
> can I do?  Has
> > >anyone had similar experiences or have some advice ?
> >
> > First of all, go back to saving access paths.  On a system 
> with 102 GB of
> > DASD, if you had to rebuild them you would a very unhappy puppy.
> >
> > Secondly, you need to understand that IBM did a very stupid 
> thing in the
> > middle of V4R4, which was to upgrade the database via PTF 
> (i.e.: without a
> > version/release/modification change).  I told them not to 
> do this, but
> they
> > didn't listen.
> >
> > Because this upgrade failed to go through the normal release testing
> > process, and because IBM is attempting to act in a mode 
> that is *CHEAP,
> > this caused lots of bugs to fall through the cracks.  Every 
> legitimate bug
> > leads to a PTF (*VERYEXPENSIVE [You wouldn't think so, but 
> nevertheless
> > this is what IBM claims.]).
> >
> > Ultimately PTF's get into a "Cumulative PTF Package", which 
> gets a good
> > amount of testing.
> >
> > However because of database changes, tape changes and Y2K 
> changes, IBM has
> > instituted a new set of PTF's called "group PTF's".  "Group 
> PTF's" are not
> > as extensively tested, to say the least.  (They resemble 
> doing business
> > like Micro$oft, but nevertheless this is what IBM is 
> providing.)  I would
> > recommend that all customers at V4R4 have the "group PTF's" for both
> > database and Y2K.  In addition if you are running a 3570 or 
> 3590, you need
> > the "group PTF's" for save/restore.  There are other sets 
> of "group PTF's"
> > for the net, and things like that.
> >
> > Al
> >
> >
> >
> >
> >
> > +--------------------------------------------------+
> > | Please do not send private mail to this address. |
> > | Private mail should go to barsa@ibm.net.         |
> > +--------------------------------------------------+
> >
> > Al Barsa, Jr. - Account for Midrange-L
> > Barsa Consulting, LLC.
> > 400 > 390
> >
> > Phone: 914-251-1234
> > Fax: 914-251-9406
> > http://www.barsaconsulting.com
> > http://www.taatool.com
> >
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