Thanks Chris. We are currently using WebSphere and have moved a few
applications with more on the schedule.
"Little, Chris"
<[EMAIL PROTECTED]
hs.org> To
Sent by: Linux on [EMAIL PROTECTED]
390 Port cc
<[EMAIL PROTECTED]
IST.EDU> Subject
Re: linux early results
04/13/2004 11:09
AM
Please respond to
Linux on 390 Port
<[EMAIL PROTECTED]
IST.EDU>
We do plan to implement Websphere in a 6-12 month time range.
> -----Original Message-----
> From: Jerry Prange [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, April 13, 2004 10:55 AM
> To: [EMAIL PROTECTED]
> Subject: Re: linux early results
>
>
> Do you have any web application servers currently running or
> plan to run on
> this machine?
>
>
>
> "Little, Chris"
> <[EMAIL PROTECTED]
> hs.org>
> To
> Sent by: Linux on [EMAIL PROTECTED]
> 390 Port
> cc
> <[EMAIL PROTECTED]
> IST.EDU>
> Subject
> Re: linux early results
>
> 04/13/2004 10:49
> AM
>
>
> Please respond to
> Linux on 390 Port
> <[EMAIL PROTECTED]
> IST.EDU>
>
>
>
>
>
>
> > Can you share some more:
> >
> > 1) how many linux instances are you running?
>
> right now we have 12 defined. We would have more but we are DASD
> constrained until we get the power connectors for that 18TB
> Shark sitting
> idle on the raised floor . . . .
>
> > 2) how much real memory do you have?
>
> 6 gig allocated to the VM lpar. 1 gig is defined as XSTORE.
>
> > 3) how much virtual memory are you allocating per linux instance?
>
> Our child welfare database has 2 gig allocated to it. The HP
> had 3 gig and
> our DBA's weren't confident of having any less than 2.
> Looking at linux
> memory utilization I'm very confident that we can lower that.
> Also, we
> have run into issues with the qeth module hanging with > 2 gig/ guest.
>
> > And anything else you think would be worth knowing for those
> > of us who are
> > planning and hope to match your success.
> Management has to be behind it. Before IBM suggested running
> Linux, there
> was a lot of insecurity (pun intended) about putting Linux into our
> environment. When I was still in operations, I just about lost my job
> because I had left a Redhat _documentation_ CD in a PC. Yesterday, my
> manager's manager said it would take a disaster to go back to the HP.
> Three
> years ago she said that she would never let Linux in this
> shop, it was just
> too insecure. How times change.
>
> Also, know your platform. I had some experience with working on a
> mainframe
> from my operations days, but it has still been a culture
> shock moving to
> it.
> I still have a lot to learn about z/VM. There are times the
> platform just
> doesn't make sense to me.
>
> Lastly, we had commitments from IBM and Oracle to get this working.
> Whenever we hit a snag, and there have been a few, both companies came
> through for us.
>
> >
> >
> > --------------------------------------------------------------------
> > Lionel B. Dyck, Systems Software Lead <><
> > Kaiser Permanente Information Technology
> > 25 N. Via Monte Ave
> > Walnut Creek, Ca 94598
> >
> > Phone: (925) 926-5332 (tie line 8/473-5332)
> > E-Mail: [EMAIL PROTECTED]
> > Sametime: (use Lotus Notes address)
> > AIM: lbdyck
> >
> >
> >
> > "Little, Chris" <[EMAIL PROTECTED]>
> > Sent by: Linux on 390 Port <[EMAIL PROTECTED]>
> > 04/12/2004 12:11 PM
> > Please respond to
> > Linux on 390 Port <[EMAIL PROTECTED]>
> >
> >
> > To
> > [EMAIL PROTECTED]
> > cc
> >
> > Subject
> > linux early results
> >
> >
> >
> >
> >
> >
> > In late 2000, the Oklahoma Department of Human Services
> > decided that the
> > HP
> > equipment purchased in 1995 to service the Child Welfare
> > division needed
> > to
> > be upgraded. The assumption at that time was to continue
> > with HP as the
> > primary vendor and the operating system would continue as
> > HP-UX; however,
> > government being the way it is, the bidding invitation was
> > not extended
> > until early 2002, with the bids arriving in April. At that time a
> > separate
> > project was underway to move our existing 390 hardware to
> > z/Series. IBM
> > then mentioned to management that Linux running on the
> > z/Series might be
> > of
> > benefit to us. After much handwringing, mentions of
> > security, and shouts
> > that Linux wasn't mature enough, we decided to go ahead
> with putting a
> > mission critical Oracle database on Linux under z/VM. (geek
> > note: it's a
> > 2064-1C5 with two engines dedicated to a z/VM lpar)
> >
> > Fast forward two years.
> >
> > On April 9, 2004, the child welfare database on HP-UX was put
> > in read-only
> > mode.
> > On April 10, the import to Linux completed with minor (and
> correctable
> > issues).
> > On April 11, the go ahead to put the Oracle/Linux database in
> > read/write
> > was
> > given
> > On April 12, 2004, the first users began logging in (much
> sweating and
> > worrying on the part of certain sysadmins). In first six
> > hours, we have
> > received comments such as "... 'it is flying' and another was
> > 'they must
> > have put another rat on the wheel'. It is nice to see smiles!" and
> > "Mondays
> > have always been the slowest of the days I've noticed in
> the past, but
> > today
> > it is really nice. The slowest transaction seems to be
> when you first
> > sign
> > on to KIDS, but after that it is 'smooth sailing.' Thanks!"
> >
> > With the polls closed and early results coming in, Linux on
> > z/Series looks
> > like the winner!
> >
> > +-------------------------------------------------------------
> > --------------
> > +
> > | Chris Little [EMAIL PROTECTED] |
> > | Ok Dept of Human Services Data Services Division
> (405)522-1306 |
> > +-------------------------------------------------------------
> > --------------
> > +
> >
> >
> ----------------------------------------------------------------------
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> >
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