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Re: Inserts optimization?

From: Michael Stone <mstone+postgres(at)mathom(dot)us>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Inserts optimization?
Date: 2006-04-14 11:49:14
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Lists: pgsql-performance
>On Thu, Apr 13, 2006 at 02:59:23PM -0400, Francisco Reyes wrote:
>>In RAID 10 would it matter that WALL is in the same RAID set?
>>Would it be better:
>>4 disks in RAID10 Data
>>2 disks RAID 1 WALL
>>2 hot spares

I guess the first question is why 2 hot spares? You don't have many 
spindles, so you don't want to waste them. It might turn out that a 
larger array with more spindles with outperform a smaller one with 
fewer, regardless of RAID level (assuming a decent battery-backed 
cache). You might try 
1 spare

Mike Stone

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