On Sun, Jan 26, 2003 at 03:03:10AM -0600, Ron Johnson wrote: > On Sat, 2003-01-25 at 21:42, Pigeon wrote: > > On Sat, Jan 25, 2003 at 12:20:56AM -0800, Paul Johnson wrote: > > > On Fri, Jan 24, 2003 at 10:21:12PM +0000, Pigeon wrote: > [snip] > > Now, I have a UDMA66 HD, which on buffered disk reads in hdparm -t > > gives rates of about 28Mb/s, both with the onboard VIA controller and > > a CMD680 PCI card. I also have a Quantum Viking 4.5 SCSI drive and > > Initio INIC-950P (9100UW) SCSI card. This only gives me around 10Mb/s > > in hdparm -t. Seems a bit slow to me. hdparm -T gives over 200Mb/s for > > any drive. > > Well, 4.5GB SCSI drives are pretty old, and 10MB/s is SCSI-2's *exact* > max speed, so maybe you're maxing out the Viking.
I thought it was 10MHz transfer rate over a 16-bit bus (68-pin cable), giving 20Mb/s. No? It does seem suspiciously close to the "quantum" of SCSI speed though. Is there a decent utility that allows me to see what transfer mode it's using, and tweak it, in the manner of hdparm and UDMA settings? I've had a look at scsiinfo but it doesn't seem to be able to tell me what speed the SCSI bus is being driven at. The card itself claims 40Mb/s synchronous; I had expected to get up to 20Mb/s from the Viking. A faster and larger SCSI drive is next on my wish list; it's good that SCSI gear is finally becoming available without having to pay a fortune for it. Pigeon -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
