HP XP Continuous Access Software - Manual (Page 49)

Installation and configuration 49
HORCM_DEV section
Description
The HORCM_DEV section describes the physical volumes corresponding
to the paired volume names. Each volume listed in HORCM_DEV is
defined on a separate line.
Syntax
HORCM_DEV
device_group device_name port target_ID LUN [ mirror_unit ]
device_group Each device group contains one or more volumes. This
parameter gives you the capability to act on a group of
volumes with one RM command. The device group can
be any user-defined name up to 31 characters in length.
device_name User-defined and unique to the instances using the
device groups. It can be up to 31 characters in length
and is a logical name that can be used instead of the
physical Port/TID/LUN/MU# designation.
port Disk array I/O port through which the volume is
configured to be accessed. Port specification is not case
sensitive (CL1-A= cl1-a= CL1-a= cl1-A).
target_ID SCSI/Fibre target ID assigned to the volume.
LUN Decimal logical unit number assigned to the volume.
mirror_unit Used when you are making multiple BC copies from a
P-VOL. The mirror unit is a number ranging from 0 to 2
and has to be explicitly supplied for all BC volumes.
If mirror_unit is left blank it will be assumed that
CA-Sync or CA-Async is being used. The number is
not a count of the number of copies to be made but
rather a label for a specific P-VOL to S-VOL
relationship.
CA-Journal will allow up to four copies from a P-VOL.
The mirror unit for a CA-Journal volume is indicated
by an “h” and a number ranging from 0 to 3. If