Translate device hex to cXtYdZ

[Alzhy]

CAn't seem to recall how to map device depiced in hex like: 1f894000 to its corresponding HW path o cXtYdZ.

Anyone remember?

Wanting to tranalste the error message to pinpoint the exact device. Here's the error message:

SCSI: Unexpected Disconnect -- lbolt: 1578226975, dev: 1f894000, io_id: 897afda9
SCSI: Unhandled phase mismatch -- lbolt: 1578226975, dev: 1f894000

[James R. Ferguson]

Hi:

The device format is: MMBBTLFF

Where : MM = Major number
BB = Bus number
T = Target
L = LUN
FF = Flags

Regards!

...JRF...

[Nido]

Hi,

ll /dev/dsk |grep 894000

Cheers!!

[Matti_Kurkela · Accepted solution]

The two left-most hex digits in the dev: value are the major device number. 1f = 31 in decimal.

Looks like your assumption is correct and this is a /dev/dsk device. /dev/rdsk would have a different major number (off the top of my head, maybe 205 or thereabouts in decimal?).

The rest (894000) is the minor device number, whuch can be used as-is because HP-UX convention is to always display the minor numbers in hex, with a "0x" prefix.

The command:

ll /dev/dsk | grep 0x894000

should easily find the device.

MK

[Sharma Sanjeev]

It should be c137t4d0

Regards
Sanjeev

[Alzhy]

Just remembered:

dev: 1f894000

1f
Means it is the device class (DEC 31) -- lsdev|grep31 yields sdisk/disk -- so it is a disk device

894000 is the device major, minor, etc..

ls -l /dev/rdsk/*|grep 894000

yields the cXtYdZ of the disk device.