Jon Lewis wrote:
>
> On Sat, 26 Dec 1998, Eyal Lebedinsky wrote:
>
> > I think the FAST-5 was negotiated as the best the drive will do. Here is
> > how another disk comes up:
>
> Are the old disks SCSI-1 or SCSI-2? If you don't have important data on
> them, you might try forcing 10MB/s and see what happens.
I did show the disks entry before, here it is again:
Vendor: QUANTUM Model: PD210S SUN0207 Rev: 492W
Type: Direct-Access ANSI SCSI revision: 02
ncr53c810-1-<1,*>: FAST-5 SCSI 4.0 MB/s (250 ns, offset 8)
SCSI device sdc: hdwr sector= 512 bytes. Sectors= 408574 [199 MB]
[0.2GB]
So it is SCSI-2, but it only does 4MB/s.
I did do a:
echo "setsync 1 10" >/proc/scsi/ncr53c8xx/1
(I also tried "all" targets)
This should select a 25ns factor, which is 10MB/s, but I saw no change.
Either the drive does not accept the offer or the driver does not
respond to the echo command. Well, I just set sync off (period 255)
then back to 10 (25ns) with access to the disk in between, and this
is what was logged
in 'messages':
ncr53c810-1-<1,*>: asynchronous.
ncr53c810-1-<1,*>: FAST-5 SCSI 4.0 MB/s (250 ns, offset 8)
I really think the disks are just stubborn.
--
Eyal Lebedinsky ([EMAIL PROTECTED])
