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Consumer-grade vs enterprise-grade disk drives

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-hackers(at)postgreSQL(dot)org
Subject: Consumer-grade vs enterprise-grade disk drives
Date: 2005-05-31 04:07:42
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
I'm not sure whether this article has been mentioned here before,
but it definitely is worth a read:

From the proceedings of the FAST '03 conference:

	More than an interface - SCSI vs. ATA
	Dave Anderson, Jim Dykes, Erik Riedel
	Seagate Research


This paper sets out to clear up a misconception prominent in the storage 
community today, that SCSI disc drives and IDE (ATA) disc drives are the 
same technology internally, and differ only in their external interface 
and in their suggested retail price.  ...  This paper attempts to clarify 
the differences by illuminating some of these design choices and their 
consequences on final device characteristics.

			regards, tom lane


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