> 192# dd if=/dev/zero of=test bs=1024 count=3000
> hdc0: failed, status 0xb0
> 0: 0
> 1: 16
> 2: 0
> 3: b
> 4: a
> 5: 16
> 6: 2
> 7: ff
> 8: 4
> 9: a2
> Jan  2 17:08:01 192 /netbsd: hdc0: failed, status 0xb0
> Jan  2 17:08:02 192 /netbsd: 0: 0
> Jan  2 17:08:02 192 /netbsd: 1: 16
> Jan  2 17:08:02 192 /netbsd: 2: 0
> Jan  2 17:08:02 192 /netbsd: 3: b
> Jan  2 17:08:02 192 /netbsd: 4: a
> Jan  2 17:08:02 192 /netbsd: 5: 16
> Jan  2 17:08:03 192 /netbsd: 6: 2
> Jan  2 17:08:03 192 /netbsd: 7: ff
> Jan  2 17:08:03 192 /netbsd: 8: 4
> Jan  2 17:08:03 192 /netbsd: 9: a2
> 3000+0 records in
> 3000+0 records out
> 3072000 bytes transferred in 20 secs (153600 bytes/sec) #Hey!!!
> 
It's obvious it's slow; you get a disk error and that takes a while 
to handle. My RD54 otherwise gets another result speed (when playing
with the raw device, reading):

# dd if=/dev/rrd0c of=/dev/zero bs=63k count=100
100+0 records in
100+0 records out
6451200 bytes transferred in 21 secs (307200 bytes/sec)

Which is quite normal; the maximum MFM speed is 5Mbit/s.

-- Ragge