Device File Name Example - HP StorageWorks XP24000 Configuration Manual

To verify device recognition:
1. Log in to the system as root.
2. Display the device data to verify that the system recognizes the newly installed devices on the
disk array. Use the ioscan –fn command to display the device data.
On a system with a large LUN configuration, HP-UX may not build device files on all LUNs. Enter
insf –e to build all missing device files.
Example
# ioscan -fn
Class
bc
fc
lan
fcp
ext_bus
disk
disk
ext_bus
target
ctl
In the example:
• HP OPEN-9 device: SCSI bus number = 14/12, bus instance = 6, SCSI target ID = 0, LUN
= 0.
• HP OPEN-9*2 device: SCSI bus number = 14/12, bus instance = 6, SCSI target ID = 0, LUN
= 1.
• If UNKNOWN is displayed for a disk, the HP 9000 system may not be configured properly.
Refer to the HP documentation or contact HP customer support for assistance with the HP
9000 system or the HP-UX operating system.
3. Enter the device data for each disk array device in a table. See
4. 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.
Table 5 Device file name example
SCSI bus instance
number
00
20 Installing and configuring HP-UX for the XP disk array
I H/W Path
6 14
1 14/12
2 14/12.5
1 14/12.8
6 14/12.8.0.0.0
4 14/12.8.0.0.0.0.0
5 14/12.8.0.0.0.0.1
7 14/12.8.0.255.0
10 14/12.8.0.255.0.0
5 14/12.8.0.255.0.0.0 sctl
Hardware path
14/12.6.0
Driver S/W State H/W Type...
ccio CLAIMED
fcT1 CLAIMED
fcT1_cntl CLAIMED
fcp CLAIMED
fcpmux CLAIMED
sdisk CLAIMED
sdisk CLAIMED
fcpdev CLAIMED
tgt CLAIMED
CLAIMED
Appendix
SCSI TID LUN
6 0
BUS_NEXUS...
INTERFACE...
INTERFACE...
INTERFACE...
INTERFACE...
DEVCE...
DEVICE...
INTERFACE...
DEVICE...
DEVICE...
A.
File name
c6t0d0