From: Joshua D. Drake <jd@commandprompt.com>
To: Ben Suffolk <ben@vanilla.net>
Cc: Dave Cramer <pg@fastcrypt.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: New hardware thoughts
Date: Fri, 20 Oct 2006 11:52:09 -0700
Message-ID: <45391AD9.8080808@commandprompt.com> (raw)
In-Reply-To: <5CBF0F4C-1EBE-480C-AD94-9E65A5A9BC8E@vanilla.net>
References: <0D8823B6-2A2D-40BA-B207-9DA0D50EDFB6@vanilla.net>
<463B9F43-74FC-4DFE-ABC4-357228901174@fastcrypt.com>
<5CBF0F4C-1EBE-480C-AD94-9E65A5A9BC8E@vanilla.net>
Ben Suffolk wrote:
>> You mentioned a "Perc" controller, so I'll assume this is a Dell.
>>
>> My advice is to find another supplier. check the archives for Dell.
>>
>> Basically you have no idea what the Perc controller is since it is
>> whatever Dell decides to ship that day.
>>
>> In general though you are going down the right path here. Disks first,
>> memory second, cpu third
>>
>> Dave
>
> Yes I am looking at either the 2950 or the 6850. I think the only think
> that the 6850 really offers me over the 2950 is more expandability in
> the spare processor, and additional memory
> sockets. In all other respects the config I am looking at would fit
> either chassis. Although the 2950, being slightly newer has the DRAC 5
> (dells implementation of IPMI) management, which may be useful.
Get an HP with the 64* series. They are a good, well rounded machine for
PostgreSQL.
http://h10010.www1.hp.com/wwpc/pscmisc/vac/us/en/ss/proliant/proliant-dl.html?jumpid=re_R295_prodexp...> I hear what you say about the raid card, but how likely are they to
> change it from the LSI Mega Raid one in reality? But I am open to
Heh... very likely. I have a 6 drive Dell machine with a Perc controller
(lsi rebrand). If I put it in RAID 5, it refuses to get more than 8 megs
a second. If I put it in RAID 10, it get about 50 megs a second.
If I get the offshelf LSI Megaraid withe the same configuration? You
don't want to know... it will just make you want to cry at the fact that
you bought a Dell.
Sincerely,
Joshua D. Drake
> suggestions if you have any specific models from other manufacturers I
> should look at. I do need to be able to get the fast hardware support on
> it though that I can get from the likes of Dells 4 hours on site call
> out, so rolling my own isn't an option on this one really (unless it was
> so much cheaper I could have a hot standby or at least a cupboard of all
> the needed parts instantly available to me)
>
> Regards
>
> Ben
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Have you searched our list archives?
>
> http://archives.postgresql.org
>
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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, ben@vanilla.net, pg@fastcrypt.com
Subject: Re: New hardware thoughts
In-Reply-To: <45391AD9.8080808@commandprompt.com>
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