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Date:      Fri, 14 Sep 2007 08:44:48 +0200
From:      Palle Girgensohn <girgen@pingpong.net>
To:        Francisco Reyes <lists@stringsutils.com>
Cc:        freebsd-performance@freebsd.org
Subject:   Re: AMD or Intel?
Message-ID:  <26F41A5DACB2D2CB43A5829E@c-6254e155.1521-1-64736c12.cust.bredbandsbolaget.se>
In-Reply-To: <cone.1189727090.40770.77599.5001@35st.simplicato.com>
References:  <E6C9DBADAE3839B380B736D7@rambutan.pingpong.net> <cone.1189710437.247473.77599.5001@35st.simplicato.com> <1F219879A7E5C565C96109FF@c-2f56e155.1521-1-64736c12.cust.bredbandsbolaget.se> <cone.1189727090.40770.77599.5001@35st.simplicato.com>

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--On torsdag, torsdag 13 sep 2007 19.44.50 -0400 Francisco Reyes 
<lists@stringsutils.com> wrote:

> Palle Girgensohn writes:
>
>> Presently ~pgsql/data has a 16 GB footprint.
>
> If you can put 4GB or better in your machine you should do well.
> Specially since you mentioned you are mostly read with relatively small
> amount of writes.
>
>> The growth is rather slow,  around a percent per week

Sorry, my mistake, more like a percent per day  at the moment...

We are planning about 16 GB RAM, actually. Maybe it is overkill?

> What controller are you getting?
> We have a 3ware SATA controller with RAID6 and it performs pretty well.
> Based on what you wrote SATA RAID should be enough for your load and
> usage pattern.
>
> Obviously if you can afford SCSI/SAS performance will likely be even
> better. However make sure you can get management program for the
> controller. At the very least some type of notification if the raid is
> degraded.

We will probably go for SCSI. HP DL380 with "HP SmartArray", aka ciss.



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