HP StorageWorks Disk Array XP operating system configuration guide for HP-UX XP24000, XP12000, XP10000, SVS200, v01 (A5951-96018, June 2007)

Creating the device files

If the device files were not created automatically when the system was restarted, use the insf –e

command in the /dev directory to create the device files. After this command is executed, repeat the

procedures in the previous section Verifying device recognition to verify new device recognition and

the device files and driver.

Example

# insf -e

insf: Installing special files for mux2 instance 0 address 8/0/0

: : : :

Failure of the insf –e command indicates a SAN problem.

If the device files for the new disk array devices cannot be created automatically, you must create the

device files manually using the mknodcommand as follows:

1. Retrieve the device information you recorded earlier.

2. Construct the device file name for each device, using the device information, and enter the file

names in your table. Use the following formula to construct the device file name:

c x t y d z

where x = SCSI bus instance number y = SCSI target ID z = LUN

c stands for controller, t stands for target ID, and d stands for device. The numbers x, y, and

z are hexadecimal.

3. Construct the minor number for each device, using the device information, and enter the file

names in your table. Use the following formula to construct the minor number:

0xxxyz00 where

xx = SCSI bus instance number y = SCSI target ID z = LUN

4. Display the driver information for the system using the lsdev command.

Example

# lsdev

Character Block Driver Class

: : : :

188 31 sdisk disk

5. Enter the major numbers for the device drivers into the table. You should now have all required

device and driver information in the table.

6. Create the device files for all disk array devices (SCSI disk and multiplatform devices) using the

mknodcommand. Create the block-type device files in the /dev/dsk directory and the

character-type device files in the /dev/rdsk directory.

Example

XP Disk Array Configuration Guide for HP-UX 23