> > What has happened to the NCR SCSI driver?  I did a sup
> > to get the latest "improved" version of the NCR driver,
> > and now the write speed has gone from 3.5MB/s to 1.4MB/s.
> > Reading is still at about 5.5MB/s.
> 
> Oh dear. What sort of PC are you on, and what's the rotational
> speed of your hard drive?
Oops, I meant to include my machine specs, but forgot.

I have a 166MHz Pentium and the disk I tested on is a 7200 rpm seagate
15150.  I'll include the dmesg output below.
I did the sup and built the system on Noov 22.

        -- Lennart

CPU: Pentium (GenuineIntel 586-class CPU)
real mem  = 66711552
avail mem = 60723200
using 839 buffers containing 3436544 bytes of memory
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
Intel 82437 Triton (class bridge, subclass host, revision 0x02) at pci0 dev 0 function 0 not configured
Intel 82471 Triton (class bridge, subclass ISA, revision 0x02) at pci0 dev 7 function 0 not configured
S3 968 (class display, subclass VGA, revision 0x00) at pci0 dev 10 function 0 not configured
ncr0 at pci0 dev 12 function 0: NCR 53c810 SCSI
ncr0: interrupting at irq 12
ncr0: restart (scsi reset).
scsibus0 at ncr0
sd1 at scsibus0 targ 0 lun 0: <MICROP, 4110-09NB_Nov18F, TN0F> SCSI2 0/direct fixed
sd1: sd1(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
1002MB, 2428 cyl, 9 head, 93 sec, 512 bytes/sec
sd0 at scsibus0 targ 1 lun 0: <SEAGATE, ST15150N, 0020> SCSI2 0/direct fixed
sd0: sd0(ncr0:1:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
4095MB, 3712 cyl, 21 head, 107 sec, 512 bytes/sec
cd0 at scsibus0 targ 2 lun 0: <PIONEER, CD-ROM DR-124X, 1.01> SCSI2 5/cdrom removable
sd2 at scsibus0 targ 5 lun 0: <IOMEGA, ZIP 100, D.09> SCSI2 0/direct removable
sd2: 96MB, 96 cyl, 64 head, 32 sec, 512 bytes/sec
isa0 at mainbus0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
lpt0 at isa0 port 0x378-0x37f irq 7
ed0 at isa0 port 0x300-0x31f irq 9
ed0: address 00:00:79:00:3b:bb, type NE1000 (8-bit)
wss0 at isa0 port 0x530-0x537 irq 10 drq 1: AD1848K (vers 4), 82C929
npx0 at isa0 port 0xf0-0xff: using exception 16
pc0 at isa0 port 0x60-0x6f irq 1: color
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
joy0 at isa0 port 0x201: joystick connected
biomask 1440 netmask 1640 ttymask 16da