Quote:
Originally Posted by
MadeInGermany
Meanwhile the higher integration hides the complexity, and the price gap between SAS and SATA disks should heavily shrink - but does not. It might be the sales strategy of the big manufactures, or even a cartel...
Not entirely. The defining quality of a disk is not the connection (SCSI, FC, SATA) but the MTBF (mean time between failure, the average time the disk will work before having to be replaced) the disk is designed to handle. The $59.99/TB disk sold at the Penny-shop will perhaps not do more than 20000h (~3years) MTBF at all. Data center quality disks have MTBFs of 100000h and more. If you have a DC with, say, some thousands of disks in it you will apppreciate the fact that only 5 disks a week give up instead of 50.
Because SCSI is traditionally used in professional equipment (read: data centre equipment) they tend to be somewhat more expensive - not because of the SCSI, but because they are usually better quality too.
bakunin