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

File nameLUNSCSI TIDHardware pathSCSI bus instance
number
c6t0d12614/12.6.100
5. Verify that the SCSI TIDs correspond to the assigned port address for all connected ports (see
mapping tables in Appendix B - Disk array device emulations, for values). If so, the logical devices
are recognized properly.
If the logical devices are not recognized properly:
• Check the AL-PA for each port using the LUN Manager software.
• If the same port address is set for multiple ports on the same loop (AL with HUB), all port
addresses except one changed to another value, and the relationship between AL-PA and
TID does not correspond to the mapping given in Appendix B - Disk array device emulations,
set a different address for each port, reboot the server, and then verify new device recognition
again.
• If unused device information remains, the TID-to-AL-PA mapping will not correspond to the
mapping given in Appendix B - Disk array device emulations. Renew the device information,
and then verify new device recognition again.
Configuring disk array devices
Disk arrays are configured using the same procedure for configuring any new disk on the host. This
includes the following procedures:
1. Verifying the device files and drivers
2. Creating the device files
3. Creating the physical volumes
4. Creating new volume groups
5. Creating logical volumes
6. Creating the file systems
7. Setting the I/O timeout parameter
8. Creating the mount directories
9. Mounting and verifying the file systems
10. Setting and verifying the auto-mount parameters
The HP-UX system uses the Logical Volume Manager (LVM) to manage the OPEN-x devices on the
disk array. The instructions in this section do not explicitly cover all LVM configuration issues. For
further information on LVM configuration, see the HP-UX user documentation.
HP System Administrator Manager (SAM) can be used instead of UNIX commands to configure SCSI
disk devices. See Reference information for the HP System Administrator Manager SAM for further
information.
Verifying the device files and drivers
The device files for new devices are usually created automatically during HP-UX startup. Each device
must have a block-type device file in the /dev/dsk directory and a character-type device file in the
/dev/rdsk directory.
XP Disk Array Configuration Guide for HP-UX 21