SCSI Bus Trend

The original SCSI bus was released in 1984. Over these 20 years SCSI was up-graded a number of times raising it's throughput from SCSI-1 @ 5MB/s to 160MB/s for SCSI-5.

Any way I was updating web pages today based on when they were lasted reviewed. About half a dozen SCSI bus pages showed up with dates of 12/12/06. So I decided to take a look and see if those pages required an up-date ~ remember standards work stopped on a number of older SCSI standards [so the facts aren't changing].

I took a look at the SCSI page hits year to date, by month, and I noticed that the pages were only getting a few thousand hits combined. So 12 related SCSI bus topic pages only received 12,000 page views this year. That is real low for a major computer interface.

However; Serial SCSI [Serial Attached SCSI, or SAS] was released in 2003 which moved from a parallel interface to a serial interface ~ identical to SATA. The Serial SCSI interface jump the through put speed to 3Gbps, using a smaller cable.

So I realize the Parallel SCSI is in decline, but it seems that the trend is showing a massive decline, as shown in the chart.

Of the two main Hard Disk Driver interfaces [HDD], SCSI seems to be taking a harder hit then the IDE interface [ATA Bus] ~ which is also obsolete. The SCSI bus was also more expensive to implement than IDE, and SCSI tended to be integrated by high-end users so it stands to reason. Work stops on the SCSI standard and at the same time starts up on a new faster Serial SCSI ~ so you have no up-grade path. You have to move to the new Serial version of the bus.

IDE shows a hugh decline too, but not as massive