Hp XP12000 User Manual download pdf (Page 30)

32 HP StorageWorks Disk Array XP Operating System Configuration Guide: HP-UX

Verifying device recognition

Verify that the HP-UX system recognizes the new devices on the disk

array.

If the SCSI paths were defined after the system is powered on, you must

halt and restart the system to allow the system to recognize the new

devices.

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

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

# ioscan -fn

class I H/W Path Driver S/W State H/W Type Description

==========================================================================

bc 6 14 ccio CLAIMED BUS_NEXUS I/O Adapter HP Fibre Channel Mass

fc 1 14/12 fcT1 CLAIMED INTERFACE Storage Adapter HP Fibre Channel Mass

lan 2 14/12.5 fcT1_cntl CLAIMED INTERFACE Storage Cntl /dev/fcms2

fcp 1 14/12.8 fcp CLAIMED INTERFACE FCP Protocol Adapter HP A3308 FCP-SCSI MUX

ext_bus 6 14/12.8.0.0.0 fcpmux CLAIMED INTERFACE Interface

target 9 14/12.8.0.0.0.0 tgt CLAIMED DEVICE

disk 4 14/12.8.0.0.0.0.0 sdisk CLAIMED DEVICE HP OPEN-9 /dev/dsk/c6t0d0/dev/rdsk/c6t0d0

disk 5 14/12.8.0.0.0.0.1 sdisk CLAIMED DEVICE HP OPEN-9*2 /dev/dsk/c6t0d1 /dev/rdsk/c6t0d1

ext_bus 7 14/12.8.0.255.0 fcpdev CLAIMED INTERFACE FCP Device Interface

target 10 14/12.8.0.255.0.0 tgt CLAIMED DEVICE

ctl 5 14/12.8.0.255.0.0.0 sctl CLAIMED DEVICE HP HPA3308 /dev/rscsi/c7t0d0

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Hp XP12000 User Manual Page 30