From: Joshua D. Drake <jd@commandprompt.com>
To: Luke Lonergan <LLonergan@greenplum.com>
Cc: David Lang <dlang@invendra.net>
Cc: Frank Wiles <frank@wiles.org>
Cc: Juan Casero <caseroj@comcast.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: What's the best hardver for PostgreSQL 8.1?
Date: Sat, 24 Dec 2005 20:18:55 -0800
Message-ID: <43AE1DAF.5070207@commandprompt.com> (raw)
In-Reply-To: <3E37B936B592014B978C4415F90D662D01F47552@MI8NYCMAIL06.Mi8.com>
References: <3E37B936B592014B978C4415F90D662D01F1B59F@MI8NYCMAIL06.Mi8.com>
<Pine.LNX.4.62.0512241859190.2807@qnivq.ynat.uz>
<3E37B936B592014B978C4415F90D662D01F47552@MI8NYCMAIL06.Mi8.com>
Luke Lonergan wrote:
>David,
>
>
>
>>now hot-swap may not be supported on all interface types, that may be what
>>you have run into, but with SCSI or SATA you should be able to hot-swap
>>with the right controller.
>>
>>
>
>That's actually the problem - Linux hot swap is virtually non-functional for SCSI. You can write into the proper places in /proc, then remove and rescan to get a new drive up, but I've found that the resulting OS state is flaky. This is true of the latest 2.6 kernels and LSI and Adaptec SCSI controllers.
>
>The problems I've seen are with Linux, not the controllers.
>
>
Interesting, I have had zero problems with Linux and SATA with LSI
controllers and hot plug. I wonder what the difference is. The LSI
controller even though SATA just uses the scsi driver.
Joshua D. Drake
>- Luke
>
>
>
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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, LLonergan@greenplum.com, dlang@invendra.net, frank@wiles.org, caseroj@comcast.net
Subject: Re: What's the best hardver for PostgreSQL 8.1?
In-Reply-To: <43AE1DAF.5070207@commandprompt.com>
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