This is a generic UNIBUS storage module disk driver. It is specifically designed to work with the Emulex SC-21 and SC-31 controllers. It can be easily adapted to other controllers (although bootstrapping will not necessarily be directly possible.)
The script MAKEDEV(8) should be used to create the up special files; consult mknod(8) if a special file needs to be made manually. It is recommended as a security precaution to not create special files for devices which may never be installed.
Special file names begin with
`up
'
and
`rup
'
for the block and character files respectively. The second
component of the name, a drive unit number in the range of zero to
seven, is represented by a
`?
'
in the disk layouts below. The last component of the name, the
file system partition, is
designated by a letter from
`a
'
to
`h
'
which also corresponds to a minor device number set: zero to seven,
eight to 15, 16 to 23 and so forth for drive zero, drive two and drive
three respectively (see
physio(4)).
The location and size (in 512 byte sectors) of the
partitions for the above drives:
disk start length cyls |
hp?a 0 15884 0-99 |
hp?b 16000 33440 100-309 |
hp?c 0 131680 0-822 |
hp?d 49600 15884 309-408 |
hp?e 65440 55936 409-758 |
hp?f 121440 10080 759-822 |
hp?g 49600 82080 309-822 |
disk start length cyl |
up?a 0 15884 0-26 |
up?b 16416 33440 27-81 |
up?c 0 500384 0-822 |
up?d 341696 15884 562-588 |
up?e 358112 55936 589-680 |
up?f 414048 861760 681-822 |
up?g 341696 158528 562-822 |
up?h 49856 291346 82-561 |
disk start length cyls |
hp?a 0 15884 0-99 |
hp?b 16000 33440 100-309 |
hp?c 0 131680 0-822 |
hp?d 49600 15884 309-408 |
hp?e 65440 55936 409-758 |
hp?f 121440 10080 759-822 |
hp?g 49600 82080 309-822 |
disk start length cyl |
up?a 0 15884 0-26 |
up?b 16416 33440 27-81 |
up?c 0 495520 0-814 |
up?d 341696 15884 562-588 |
up?e 358112 55936 589-680 |
up?f 414048 81312 681-814 |
up?g 341696 153664 562-814 |
up?h 49856 291346 82-561 |
disk start length cyl |
hp?a 0 15884 0-31 |
hp?b 16384 33440 32-97 |
hp?c 0 524288 0-1023 |
hp?d 342016 15884 668-699 |
hp?e 358400 55936 700-809 |
hp?f 414720 109408 810-1023 |
hp?g 342016 182112 668-1023 |
hp?h 50176 291346 98-667 |
disk start length cyl |
up?a 0 15884 0-49 |
up?b 16000 33440 50-154 |
up?c 0 263360 0-822 |
up?d 49600 15884 155-204 |
up?e 65600 55936 205-379 |
up?f 121600 141600 380-822 |
up?g 49600 213600 155-822 |
disk start length cyls |
hp?a 0 15884 0-16 |
hp?b 16320 66880 17-86 |
hp?c 0 808320 0-841 |
hp?d 375360 15884 391-407 |
hp?e 391680 55936 408-727 |
hp?f 698880 109248 728-841 |
hp?g 375360 432768 391-841 |
hp?h 83520 291346 87-390 |
The up?a partition is normally used for the root file system, the up?b partition as a paging area, and the up?c partition for pack-pack copying (it maps the entire disk). On 160M drives the up?g partition maps the rest of the pack. On other drives both up?g and up?h are used to map the remaining cylinders.
/dev/up[0-7][a-h]
/dev/rup[0-7][a-h]
The partition tables for the file systems should be read off of each pack, as they are never quite what any single installation would prefer, and this would make packs more portable.