From: John Vincent <pgsql-performance@lusis.org>
To: Jim C. Nasby <jnasby@pervasive.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: scaling up postgres
Date: Tue, 13 Jun 2006 18:21:21 -0400
Message-ID: <c841561b0606131521x14db52fflbe2a689555d6064a@mail.gmail.com> (raw)
In-Reply-To: <20060613220509.GJ34196@pervasive.com>
References: <200606030931.k539V38Y007877@smtp2.planet.net.tn>
<20060603094355.GA23297@uio.no>
<1150062140.23423.0.camel@localhost.localdomain>
<448D3B65.7090709@aeccom.com>
<448DE0DB.1020107@planet.tn>
<20060613192609.GX34196@pervasive.com>
<op.ta3o6ufqcigqcu@apollo13>
<20060613212124.GD34196@pervasive.com>
<c841561b0606131440i526c738fme96d6f1b6dc6b777@mail.gmail.com>
<20060613220509.GJ34196@pervasive.com>
On 6/13/06, Jim C. Nasby <jnasby@pervasive.com> 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.
As it stands we're currently migrating to an IBM x445 (8 XPU Xeon, 16GB of
memory) that was our old DB2 production server.
Also, I believe Opterons can do up to 4 DIMMs per memory controller, so
> with 2G sticks an 8 way Opteron could hit 64GB, which isn't exactly
> shabby, and I suspect it'd cost quite a bit less than a comperable
> p570...
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.
> 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.
> --
> Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
> Pervasive Software http://pervasive.com work: 512-231-6117
> vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
>
--
John E. Vincent
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: pgsql-performance@lusis.org, jnasby@pervasive.com
Subject: Re: scaling up postgres
In-Reply-To: <c841561b0606131521x14db52fflbe2a689555d6064a@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox