Here's the setup: 2 conner 420 meg drives, exactly the same model,
same individual disklabels, one track left in partition a to prevent
disklabel tragedy, etc.

# /dev/rwd1d:
type: ST506
disk: cfs420ccd
label: 
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 826
total sectors: 832608
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # milliseconds
track-to-track seek: 0  # milliseconds
drivedata: 0 

5 partitions:
#        size   offset    fstype   [fsize bsize   cpg]
  a:     1008        0    4.2BSD     1024  8192    16   # (Cyl.    0 - 0)
  c:   832608        0    unused        0     0         # (Cyl.    0 - 825)
  d:   832608        0    unused        0     0         # (Cyl.    0 - 825)
  e:   831600     1008    4.2BSD     1024  8192    16   # (Cyl.    1 - 825)


the ccdconfig line:
# ccd           ileave  flags   compnent devices
ccd0            63      0       /dev/wd1e /dev/wd2e

So far so good. What should I use for the geometry of the ccd drive?

For that matter, is the interleave I chose even optimal?

Thanks in advance.
--
Hacksaw