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 | > > +------------------------------------------------------------- > > -------------- > > + > > > > > ---------------------------------------------------------------------- > > For LINUX-390 subscribe / signoff / archive access instructions, > > send email to [EMAIL PROTECTED] with the message: INFO > > LINUX-390 or > > visit > > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > > > > > > ---------------------------------------------------------------------- > > For LINUX-390 subscribe / signoff / archive access instructions, > > send email to [EMAIL PROTECTED] with the message: INFO > > LINUX-390 or visit > > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO > LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: INFO > LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 >
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