I will use the Persistent Binding for Tape Devices.
Persistent binding is a host-centric enforced way of directing an operating system to assign certain SCSI target IDs and LUNs.
Persistent Name Binding support is for target devices.
Persistent binding is provided for users to associate a specified device World Wide Port Name (WWPN) to a specified SCSI target ID.
For example, where a specific host will always assign SCSI ID 3 to the first router it finds, and LUNs 0, 1, and 2 to the three-tape drives attached to the router.
Practical examples:
For Emulex HBA on a Solaris host for setting up persistent binding:
# lputil
MAIN MENU
List Adapters
Adapter Information
Firmware Maintenance
Reset Adapter
Persistent Bindings
Using option 5 will perform a manual persistent binding and the file is: /kernel/drv/lpfc.conf file.
lpfc.conf file looks like:
fcp-bind-WWNN=”50060XY484411 c6c11:lpfc0t1″,
“50060XY4411 c6c12:lpfc1t2”;
sd.conf file looks like:
name=”sd” parent=”lpfc” target=1 lun=0;
name=”sd” parent=”lpfc” target=2 lun=0;
Reconfigure:
# touch /reconfigure
# shutdown -y -g0 -i6
