On Tue, 6 Jun 2000 nick@mail.snowman.net wrote:
> On the plus side, I have seen both hot swap IDE and more than 2 devs on an
> ide channel. On the minus side, the only reason they worked is because
> IDE was too STUPID to notice. <grin> Both scsi and ide have their places
> and their uses. When I first played with IDE it did some odd hundred
> kbytes a second, and scsi did 10meg/s. Now it's 100 to 160, so IDE has
> done alot of catch up, however there's still alot more to go before it
> overtakes scsi. It'll be intresting, but for now they both have niches,
> and will for as far as I can see.
Good answer......
Several of the ATA-100 Hosts and a few ATA-66 Hosts support channel
tri-state for hotswap.
If we play by the rules of industry ATA and SCSI is technically winning
for now.
BusSpeed/device count (typical)
ATA: 100/2 == 50MB/sec
SCSI: 160/4 == 40MB/sec
SCSI: 320/4 == 80MB/sec (in t10)
SCSI: 640/4 == 160MB/sec (in the lab)
The old days:
SCSI: 40/4 == 10MB/sec SCSI I
SCSI: 80/4 == 20MB/sec SCSI II
SCSI will always have a larger number than ATA.
Since the real world pumps data and not caching tests, we all know that
basic through put in single master mode is identical.
Cheers,
Andre Hedrick
The Linux ATA/IDE guy
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Jun 07 2000 - 21:00:25 EST