SCSI vs SATA, which is better?

January 10, 2006 at 22:24:35
Specs: Win SBS 2003, 1Gb


I would like to upgrade our server's Harddisk to a bigger capacity.
It's currently running on RAID 1.

SCSI is very much more expensive compared to SATA. Especially when I need to buy 2 for the upgrade to run RAID 1.

Which should I go for? Appreciate your kind advise.

Best regards,

See More: SCSI vs SATA, which is better?

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January 10, 2006 at 22:44:05

depends on what you want. scsi is now 320mbps whereas SATA is 133-150mbps. Scsi drives have better command sets and longer life compared to sata.

going scsi will also require a scsi card, cable and active terminator. Bit more knowledge than sata drives required for config but not hard.

How valuable is your data?

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January 11, 2006 at 04:45:57

Also, SCSI is a lot more expensive so it's going to depend on your budget as well.

Don't forget to back your data up no matter which way you decide to go. I've replaced enough SCSI drives in servers to know they fail just like SATA and PATA drives and good backups can be a life saver.

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January 11, 2006 at 11:18:36

SCSI did have the fastest speed by far, and still does, but SATA 3Gb/s technlogy is out now. SATA 3Gb/s runs at 300mbps compared to SCSI 320mbps. The cost different between SCSI and SATA is huge. Example I bought 5 SCSI 147GB 320 drives, about 8 months ago, for about $450 a drive. I can buy on newegg now 5 160GB SATA 3Gb/s drives for $90 a piece. For the $450 I payed on one SCSI drive I could have bought 5 SATA drives that are larger, and only 20mbps slower.

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January 11, 2006 at 21:17:48

scsi lasts longer and has better performance. speed is not the only criteria to performance. just speeding up the clock speed doesn't make them even close to equal.

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