Re: Advice configuring ServeRAID 8k for performance

From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
To: Matthew Wakeling <matthew(at)flymine(dot)org>
Cc: Pierre C <lists(at)peufeu(dot)com>, Kenneth Cox <kenstir(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Advice configuring ServeRAID 8k for performance
Date: 2010-08-06 16:39:56
Message-ID: AANLkTik3C5v_XMssb9-0cC08_BEvsntv=4Gtnr1DStYh@mail.gmail.com
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On Fri, Aug 6, 2010 at 3:17 AM, Matthew Wakeling <matthew(at)flymine(dot)org> wrote:
> On Thu, 5 Aug 2010, Scott Marlowe wrote:
>>
>> RAID6 is basically RAID5 with a hot spare already built into the
>> array.
>
> On Fri, 6 Aug 2010, Pierre C wrote:
>>
>> As others said, RAID6 is RAID5 + a hot spare.
>
> No. RAID6 is NOT RAID5 plus a hot spare.

The original phrase was that RAID 6 was like RAID 5 with a hot spare
ALREADY BUILT IN.

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