Specifications

7–8 CLI Commands
In transparent failover mode and normal mode, host connections on controller port 1
have an offset of 0 and host connections on controller port 2 have an offset of 100.
These are the default offset values.
The relationship between LUN number, unit number, and offset is as follows:
■ LUN number = unit number - offset.
■ Logical unit number or LUN number = the logical unit number presented to the
host connection.
■ Unit number = the number assigned to the unit in the ADD UNIT command. This
is the number by which the unit is known internally to the controllers.
NOTE: In SET
controller SCSI_VERSION=SCSI-3, the command console LUN (CCL)
is presented as LUN 0 to every connection, superseding any unit assignments. See
“ADD UNIT,” page 7–27, for more information.
OPERATING_SYSTEM=OS_name
Specifies the operating system of the host. The choices are:
■ DIGITAL_UNIX
■ IBM
■ SNI
■ SUN
■ VMS
■ WINNT
■ SGI
■ HP