/dev/dsk          block devices for mounting, mdir, tar, and dd.
      /dev/rdsk         raw character devices for format

   The hard disks are always named starting with c#b#t#d# then either
   an s# or p# making either of the following for raw devices:

      /dev/rdsk/c#b#t#d#s#
      /dev/rdsk/c#b#t#d#p#

   You can remember this because it Can't Be That Difficult --> c_b_t_d.
   Use the s# designation when you're referring to a slice and the p#
   designation when you are referring to a partition.

   You can use s0 to refer to the entire partition (when using prtvtoc).
   You can use p0 to refer to the entire disk.

   The # in s# is HEX !  Be sure to use hex when referring to
   slices higher than 9, as in c0b0t0d0sc for the 12th slice
   (a=10, b=11, c=12, d=13, e=14, f=15).

   The c, b, t, and d stand for:

      c# is the controller number (like c0 or c1 for each HBA or IDE controller)
      b# is the bus number of the HBA.  This is usually 0, as in b0.
      t# is the scsi id.  t# for IDE is 0=primary, 1=slave.
      d# is the lun number (also usually 0 as in d0).

   On a small system without raid and only one Adaptec scsi HBA, the
   c, b, and d, don't change, and you use the different scsi id's (t#) to
   refer to each different drive, as in:

      /dev/rdsk/c0b0t0d0s0                    /dev/rdsk/c0b0t12d0s0
      /dev/rdsk/c0b0t1d0s0                    /dev/rdsk/c0b0t13d0s0
      /dev/rdsk/c0b0t3d0s0

   See also the Sections preceding this question.

<mschalit@pacbell.net>
gerberb@zenez.com