Re: SCSI vs SATA

From: Ron <rjpeace(at)earthlink(dot)net>
To: Michael Stone <mstone+postgres(at)mathom(dot)us>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: SCSI vs SATA
Date: 2007-04-06 12:49:08
Message-ID: E1HZnsP-0006wx-OL@elasmtp-spurfowl.atl.sa.earthlink.net
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At 07:38 AM 4/6/2007, Michael Stone wrote:
>On Thu, Apr 05, 2007 at 11:19:04PM -0400, Ron wrote:
>>Both statements are the literal truth.
>
>Repeating something over and over again doesn't make it truth. The
>OP asked for statistical evidence (presumably real-world field
>evidence) to support that assertion. Thus far, all the publicly
>available evidence does not show a significant difference between
>SATA and SCSI reliability in the field.
Not quite. Each of our professional experiences is +also+
statistical evidence. Even if it is a personally skewed sample.

For instance, Your experience suggests that infant mortality is more
real than the studies stated. Does that invalidate your
experience? Of course not.
Does that invalidate the studies? Equally clearly not.

My experience supports the hypothesis that spending slightly more for
quality and treating HDs better is worth it.
Does that mean one of us is right and the other wrong? Nope. Just
that =in my experience= it does make a difference.

The OP asked for real world evidence. We're providing it; and
across a wider range of use cases than the studies used.

Cheers,
Ron

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