ADIC 5.4 manual Mappings

#ls -l /hw/scsi total 0

drwxr-xr-x 2 root sys 0 Apr 24 12:38 1000006045170ad2 drwxr-xr-x 2 root sys 0 Apr 24 12:38 2000000087000b63 drwxr-xr-x 2 root sys 0 Apr 24 12:38 2000000087002b04 drwxr-xr-x 2 root sys 0 Apr 24 12:38 2000000087003124

3Look at the contents of the node directory for that device.

# ls -l /hw/scsi/1000006045170ad2

total 0

drwxr-xr-x 2 root sys 0 Apr 24 12:42 lun0 drwxr-xr-x 2 root sys 0 Apr 24 12:42 lun2 drwxr-xr-x 2 root sys 0 Apr 24 12:42 lun4 drwxr-xr-x 2 root sys 0 Apr 24 12:42 lun6 drwxr-xr-x 2 root sys 0 Apr 24 12:42 lun8

4Look at the contents of the LUN directory for that device.

# ls -l /hw/scsi/1000006045170ad2/lun2

total 0

crw------- 1 amass sys 0,282 Apr 24 12:43 c8p2001006045170ad2

Therefore, the explicit device path for the prompt shown on the previous page would be as follows:

Failed to build a path to the device for you.

Please enter the explicit device path:

/hw/scsi/1000006045170ad2/c8p2001006045170ad2

Mappings

Storage Network Controllers (SNCs) can usually be configured for multiple mapping schemes of the SCSI bus: target: LUN address to the FC LUN addresses. The HBA can then have its own mapping of FC LUNS to target: LUN combinations. Some routers and Fibre Channel HBAs also support non-permanent mappings that can dynamically change as devices are added or removed from the buses.

Note	To avoid the problems of a dynamically changing bus address, configure the
	ADIC FC router to use indexed addressing, which permanently maps the bus:
	target: LUN to the FC:LUN.

© December 2004, ADIC 15