View Full Version : SCSI hard drive vs S-ATA / ATA hard drive.


Jamie
11-07-2005, 11:19
What's your opinion of the relative performace of a SCSI hard drive compared to either a S-ATA or a ATA hard drive?

Vini
11-07-2005, 11:29
scsi generally a lot faster.

sata is working its way upto scsi speeds, ata is just your good old ata.

Joelc
11-07-2005, 11:49
SCSI is the fastest, but its also the most expensive, also it has the advantage of being hot swappable, and being able to take upto 7 devices per channel, IDE can have 2, SATA can have one. SATA is very good, and getting much faster then PATA drives.

Joel

steev
11-07-2005, 11:53
Fantastic timing, I've just been chacking out various speeds in Linux using hdparm. Results so far...

My hda (IDE) - 45MB/s

Older server (IDE) - 23MB/s

My sda (SATA RAID) - 33MB/s
HighPoint *ahem* "RocketRAID" 1542 with 2 x Seagate 120GB SATA

SATA software RAID VIA chipset Seagate HDs - 53 MB/s

£300 PCI-X 3ware SATA card & WD Raptors - 70 MB/s

U2W PCI-X SCSI with Raptor equivalents (10,000RPM) - 65 MB/s
(admittedly rather old Adaptec card)