/dev/dsk/chXtXdX?

[J. Les Bemont]

My disk device files for disks on an Hitachi array are showing up as /dev/dsk/ch6t3d2. Anyone know why the 'h' is in there? Is it for Hitachi? :^)

Thanks.

--Les

[A. Clay Stephenson]

Do an ls -l /dev/dsk, I want to see the major/minor device tuples.

[J. Les Bemont]

brw-r----- 1 bin sys 31 0x063200 Nov 14 09:51 c6t3d2
brw-r----- 1 root sys 2 0x063210 Nov 19 00:34 ch6t3d2
brw-r----- 1 root sys 2 0x063110 Nov 19 00:34 ch6t3d1
brw-r----- 1 root sys 2 0x063010 Nov 19 00:34 ch6t3d0
brw-r----- 1 root sys 2 0x062710 Nov 19 00:34 ch6t2d7
brw-r----- 1 root sys 2 0x062610 Nov 19 00:34 ch6t2d6
brw-r----- 1 root sys 2 0x062510 Nov 19 00:34 ch6t2d5
brw-r----- 1 root sys 2 0x062410 Nov 19 00:34 ch6t2d4
brw-r----- 1 root sys 2 0x060410 Nov 19 00:34 ch6t0d4
brw-r----- 1 root sys 2 0x060610 Nov 19 00:34 ch6t0d6
brw-r----- 1 root sys 2 0x062010 Nov 19 00:34 ch6t2d0
brw-r----- 1 root sys 2 0x062210 Nov 19 00:34 ch6t2d2
brw-r----- 1 root sys 2 0x062310 Nov 19 00:34 ch6t2d3
brw-r----- 1 root sys 2 0x060510 Nov 19 00:34 ch6t0d5
brw-r----- 1 root sys 2 0x060310 Nov 19 00:34 ch6t0d3
brw-r----- 1 root sys 2 0x060210 Nov 19 00:34 ch6t0d2
brw-r----- 1 root sys 2 0x060110 Nov 19 00:34 ch6t0d1
brw-r----- 1 root sys 2 0x060010 Nov 19 00:34 ch6t0d0
brw-r----- 1 root sys 2 0x061710 Nov 19 00:34 ch6t1d7
brw-r----- 1 root sys 2 0x062110 Nov 19 00:34 ch6t2d1
brw-r----- 1 root sys 2 0x061610 Nov 19 00:34 ch6t1d6
brw-r----- 1 root sys 2 0x060710 Nov 19 00:34 ch6t0d7
brw-r----- 1 root sys 2 0x061010 Nov 19 00:34 ch6t1d0
brw-r----- 1 root sys 2 0x061210 Nov 19 00:34 ch6t1d2
brw-r----- 1 root sys 2 0x061110 Nov 19 00:34 ch6t1d1
brw-r----- 1 root sys 2 0x061310 Nov 19 00:34 ch6t1d3
brw-r----- 1 root sys 2 0x061410 Nov 19 00:34 ch6t1d4
brw-r----- 1 root sys 2 0x061510 Nov 19 00:34 ch6t1d5
brw-r----- 1 bin sys 31 0x020001 Dec 18 09:03 c2t0d0s1
brw-r----- 1 bin sys 31 0x021001 Dec 18 09:03 c2t1d0s1
brw-r----- 1 bin sys 31 0x063300 Apr 5 00:18 c6t3d3
brw-r----- 1 root sys 2 0x063310 Apr 5 00:19 ch6t3d3

Thanks!

--Les

[Patrick Wallek]

Do you have any kind of special software for the Hitachi array installed? Maybe something similar to EMC PowerPath?

[A. Clay Stephenson]

I've never used one of these arrays on an HP-UX box but the first thing I see is block major device 2 for these "ch" whereas "31" is typical. Do an lsdev and find out what device driver is associated with block major 2.

[Edgar_10]

Hi Les,

We have an HDS 9980 connected to an HP server environment and all the disk devices do not have the "h" in the device file name & block device number of 31.

Thanks in advance!

[sysadm_1]

Hi les,

Did you install any aditional driver for the disk array?
The major number of the hitachi disks are showing 2.Instead of 31.
check the driver drivers used.

sysadm