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Re: SAN/NAS options

From: Alex Stapleton <alexs(at)advfn(dot)com>
To: Charles Sprickman <spork(at)bway(dot)net>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: SAN/NAS options
Date: 2005-12-21 10:17:27
Message-ID: 65701295-1601-43C7-8308-257170E29A9C@advfn.com (view raw or flat)
Thread:
Lists: pgsql-performance
>
>> I hope this isn't too far off topic for this list.  Postgres is  
>> the main application that I'm looking to accomodate.  Anything  
>> else I can do with whatever solution we find is just gravy...
> You've given me a lot to go on...  Now I'm going to have to do some  
> research as to real-world RAID controller performance.  It's vexing  
> (to say the least) that most vendors don't supply any raw  
> throughput or TPS stats on this stuff...

One word of advice. Stay away from Dell kit. The PERC 4 controllers  
they use don't implement RAID 10 properly. It's RAID 1 + JBOD array.  
It also has generally dismal IOPS performance too. You might get away  
with running software RAID, either in conjunction with, or entirely  
avoiding the card.

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