Date: Tue, 8 Apr 2008 14:00:07 +0200
From: Tino Schwarze <postgresql@tisc.de>
To: pgsql-admin@postgresql.org
Subject: Re: Handling large volumes of data
Message-ID: <20080408120007.GC29990@easy2.in-chemnitz.de>
References: <20080408094233.GG13409@sun.ac.za> <200804081201.15175@zmi.at>
	<20080408101336.GJ13409@sun.ac.za>
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On Tue, Apr 08, 2008 at 12:13:36PM +0200, Johann Spies wrote:

> > > This took about a week on a 2xCPU quadcore server with 8Gb RAM.
> > 
> > This is not the most interesting thing here. What disk I/O subsystem do 
> > you use? At least a hardware RAID controller with RAID 0 or 10 should 
> > be used, with 10krpm or 15krpm drives. SAS preferred, as on SATA the 
> > only quick disks are Western Digital Raptor (which aren't too bad, 
> > btw).
> 
> I have got 8x720G disks in a hardware raid 5 setup. It is a Dell 2950
> server. 

I thought, the 2950 can only take 6 3.5" disks? Or are these 72GB 2.5"
ones? Then there are 15k SAS drives available.

> I am using an XFS-filesystem.  I am not certain about the
> speed of the hard disk, but we bought the fastest we could get.

Bye,

Tino.

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