CHAPTER 10 Special Files

10.4 IRIX 5.X

In IRIX the physical devices are in /dev in a format that's sort of a merge of the BSD and SysV.4 styles. There are numerous files in /dev and a few sub-directories to separate the different types of devices, including:

abi Application Binary Interface
dsk block disk devices (ips, dks, xyl)
hl files used by GTX hardware
pts pseudo terminals
rdsk raw or character disk devices
rmt tape devices
sad STREAMS administrative devices

SCSI disk devices have entries in /dev/dsk and /dev/rdsk of the form:

dks<controller-#>d<drive-#.>{s<partition-#>|vh|vol}

where vh represents the volume header (partition 8) and vol (partition 10) is the entire drive, e.g.:

dsk/
0 brw------- 2 root sys 128, 16 Mar 24 09:37 dks0d1s0
0 brw-r----- 2 root sys 128, 17 Mar 24 09:37 dks0d1s1
0 brw------- 2 root sys 128, 22 Mar 24 09:37 dks0d1s6
0 brw------- 1 root sys 128, 23 Mar 24 09:37 dks0d1s7

rdsk/
0 crw------- 2 root sys 128, 16 Apr 9 03:10 dks0d1s0
0 crw------- 2 root sys 128, 17 Mar 24 09:37 dks0d1s1
0 crw------- 2 root sys 128, 22 Mar 24 09:37 dks0d1s6
0 crw------- 1 root sys 128, 23 Mar 24 09:37 dks0d1s7
0 crw------- 2 root sys 128, 24 Mar 24 09:37 dks0d1vh
0 crw------- 1 root sys 128, 26 Mar 24 09:37 dks0d1vol

Unix System Administration - 8 AUG 1996

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