On Tue, Jun 13, 2006 at 06:21:21PM -0400, John Vincent wrote: > On 6/13/06, Jim C. Nasby <jnasby@xxxxxxxxxxxxx> wrote: > > > >On Tue, Jun 13, 2006 at 05:40:58PM -0400, John Vincent wrote: > >> Maybe from a postgresql perspective the cpus may be useless but the > >memory > >> on the pSeries can't be beat. We've been looking at running our > >warehouse > >> (PGSQL) in a LoP lpar but I wasn't able to find a LoP build of 8.1. > > > >Probably just because not many people have access to that kind of > >hardware. Have you tried building on Linux on Power? > > > Actually it's on my radar. I was looking for a precompiled build first (we > actually checked the Pervasive and Bizgres sites first since we're > considering a support contract) before going the self-compiled route. When I > didn't see a pre-compiled build available, I started looking at the > developer archives and got a little worried that I wouldn't want to base my > job on a self-built Postgres on a fairly new (I'd consider Power 5 fairly > new) platform. Well, pre-compiled isn't going to make much of a difference stability-wise. What you will run into is that very few people are running PostgreSQL on your hardware, so it's possible you'd run into some odd corner cases. I think it's pretty unlikely you'd lose data, but you could end up with performance-related issues. If you can, it'd be great to do some testing on that hardware to see if you can break PostgreSQL. > This is true. In our case I couldn't get the approval for the new hardware > since we had two x445 boxes sitting there doing nothing (I wanted them for > our VMware environment personally). Another sticking point is finding a > vendor that will provide a hardware support contract similar to what we have > with our existing IBM hardware (24x7x4). Since IBM has f-all for Opteron > based systems and we've sworn off Dell, I was pretty limited. HP was able to > get in on a pilot program and we're considering them now for future hardware > purchases but beyond Dell/IBM/HP, there's not much else that can provide the > kind of hardware support turn-around we need. What about Sun? > >We've been thrilled with the performance of our DB2 systems that run on > >> AIX/Power 5 but since the DB2 instance memory is limited to 18GB, we've > >got > >> two 86GB p570s sitting there being under utilized. BTW, in a past life we moved a DB2 database off of Xeons and onto RS/6000s with Power4. The difference was astounding. -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
