Bruce Johnson wrote: > On Jun 30, 2005, at 2:34 PM, [EMAIL PROTECTED] wrote: >> At any rate, are SCSI drives really twice as expensive as ATA drives? > > Dirtcheapdrives.com sells a SATA150 200 Gb drive for $124; they sell a > Seagate SCSI Ultra 160 181 GB drive for $825. Both are 7200 rpm, 8mb buffer > drives. > > Six and a half times as much money for an equivalent drive. (SATA 150 is 150 > Mb/sec, ultra 160 is 160, obviously)
The drives you mention aren't really equivalent. There are reasons why SCSI drives tend to be more expensive: http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf >From the conclusion: - The differences between enterprise and personal storage disc drives are - significant. They derive from the different requirements of the respective - markets and offer a range of choices to system designers. Simply separating - the products by their external interface - ATA vs. SCSI - misses many of the - internal details and design choices that will affect system performance. We - have shown that the external interface chosen isone of the smallest - contributors to overall performance. The performance and reliability - characteristics of a drive are determined by the way the drive is designed - - from the smallest mechanical and materials choices in the head-disc - assembly, through the seek scheduling algorithms in the interface - processing. In order to find the right features and design points for a - particular application, the underlying trade-offs must be taken into account - across a continuum of specific choices. _/_ / v \ Scott Alfter (remove the obvious to send mail) (IIGS( http://alfter.us/ Top-posting! \_^_/ rm -rf /bin/laden >What's the most annoying thing on Usenet? -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
