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From: Enrico Sirola <enrico.sirola@gmail.com>
To: Justin <justin@emproshunts.com>
Cc: Craig James <craig_james@emolecules.com>
Cc: Greg Smith <gsmith@gregsmith.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
Date: Mon, 17 Mar 2008 21:58:31 +0100
Message-ID: <F582459A-C80F-40EE-B266-FC8C1131EFC7@gmail.com> (raw)
In-Reply-To: <47DEC8AB.8060608@emproshunts.com>
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	<47D00DB2.7040007@emolecules.com>
	<18451.1204824562@sss.pgh.pa.us>
	<47D0AFC1.5070305@emolecules.com>
	<08115901408538@mail.emproshunts.com>
	<47D93A43.6020503@emolecules.com>
	<016301c8854e$851e06e0$3101a8c0@JDell>
	<dcc563d10803132312o1539215fk859bbae03f36e566@mail.gmail.com>
	<47DA1866.3050500@krogh.cc>
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	<47DA37E1.6050104@emproshunts.com>
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	<47DD6F4C.2050208@emolecules.com>
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	<B18EFFDB-D930-47AB-A0BF-2A4AAF1C4765@fastcrypt.com>
	<47DEC2AD.8080602@emproshunts.com>
	<47DEB978.2030307@emolecules.com>
	<47DEC8AB.8060608@emproshunts.com>

Hi Justin,

Il giorno 17/mar/08, alle ore 20:38, Justin ha scritto:
> it is a RAID 10 controller with 6 SAS 10K 73 gig drives.    The  
> server is 3 weeks old now.
>
> it has 16 gigs of RAM
> 2 quad core Xenon 1.88 Ghz processors
> 2 gig Ethernet cards. RAID controller perc 6/i with battery backup  
> 512meg cache, setup not lie about fsync
>
> WAL is on a RAID 0 drive along with the OS

Did you try with a single raid 10 hosting DB + WAL? It gave me much  
better performances on similar hardware
Bye,
e.




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  Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
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