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Re: What's the best hardver for PostgreSQL 8.1?

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Luke Lonergan <LLonergan(at)greenplum(dot)com>
Cc: David Lang <dlang(at)invendra(dot)net>, Frank Wiles <frank(at)wiles(dot)org>, Juan Casero <caseroj(at)comcast(dot)net>, pgsql-performance(at)postgresql(dot)org
Subject: Re: What's the best hardver for PostgreSQL 8.1?
Date: 2005-12-25 04:18:55
Message-ID: 43AE1DAF.5070207@commandprompt.com (view raw or flat)
Thread:
Lists: pgsql-performance
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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>  
>


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