Message-ID: <4460E2C4.2020804@commandprompt.com>
Date: Tue, 09 May 2006 11:43:16 -0700
From: "Joshua D. Drake" <jd@commandprompt.com>
Organization: Command Prompt, Inc.
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To: Douglas McNaught <doug@mcnaught.org>
CC: Vivek Khera <vivek@khera.org>,
	"Pgsql-Performance ((E-mail))" <pgsql-performance@postgresql.org>,
	PostgreSQL General <pgsql-general@postgresql.org>
Subject: Re: [PERFORM] Arguments Pro/Contra Software Raid
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	<4460BA8B.7010600@commandprompt.com>
	<5AF87D32-F602-4973-AA21-84E0CFEA1774@khera.org>
	<87mzdroyzb.fsf@suzuka.mcnaught.org>
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Douglas McNaught wrote:
> Vivek Khera <vivek@khera.org> writes:
> 
>> On May 9, 2006, at 11:51 AM, Joshua D. Drake wrote:
>>
>>> And dollar for dollar, SCSI will NOT be faster nor have the hard
>>> drive capacity that you will get with SATA.
>> Does this hold true still under heavy concurrent-write loads?  I'm
>> preparing yet another big DB server and if SATA is a better option,
>> I'm all (elephant) ears.
> 
> Correct me if I'm wrong, but I've never heard of a 15kRPM SATA drive.

Best I have seen is 10k but if I can put 4x the number of drives in the 
array at the same cost... I don't need 15k.

Joshua D. Drake

> 
> -Doug
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
>        choose an index scan if your joining column's datatypes do not
>        match
> 


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