• LU#: Defines the iSCSI/Fibre logical unit number (LU#) of the physical
volume on the specified target ID and port.
Note: In case of fibre channel, if the TID and LU# displayed on the
system are different than the TID on the fibre address conversion table,
then you must use the TID and LU# indicated by the raidscan command
in the CCI configuration file.
• MU# for ShadowImage (HOMRCF): Defines the mirror unit number (0 - 2)
to use the redundant mirror for the identical LU on the ShadowImage. If
this number is omitted, it is assumed to be (MU#0). The cascaded
mirroring of the S-VOL is expressed as virtual volumes using the mirror
descriptors (MU#1-2) in the configuration definition file. The MU#0 of a
mirror descriptor is used for connection of the S-VOL. The mirror
descriptor (MU#0-2) can be used in ShadowImage and Copy-on-Write
Snapshot. MU#3-63 can be used in Copy-on-Write Snapshot only.
Note: When you enter the MU number for a ShadowImage/Copy-on-
Write Snapshot pair into the configuration definition file, enter only the
number, for example, “0” or “1”.
Feature
SMPL P-VOL S-VOL
MU#0-2 MU#3 - 63 MU#0-2 MU#3 - 63 MU#0 MU#1 - 63
ShadowImage Valid Not valid Valid Not valid Valid Not valid
Copy-on-Write
Snapshot
Valid Valid Valid Valid Valid Not valid
• MU# for TrueCopy/Universal Replicator/global-active device: Defines the
mirror unit number (0 - 3) if using redundant mirror for the identical LU
on TC/UR/GAD. If this number is omitted, it is assumed to be (MU#0).
You can specify only MU#0 for TrueCopy, and 4 MU numbers (MU#0 - 3)
for Universal Replicator and global-active device.
Note: When you enter the MU number for a TC/UR/GAD pair into the
configuration definition file, add an "h" before the number, for example,
"h0" or "h1".
Feature
SMPL P-VOL S-VOL
MU#0 MU#1 - 3 MU#0 MU#1 - 3 MU#0 MU#1 - 3
TrueCopy Valid Not valid Valid Not valid Valid Not valid
UR Valid Valid Valid Valid Valid Valid
HORCM_INST
The instance parameter (HORCM_INST) defines the network address (IP
address) of the remote server (active or standby). It is used to view or
change the status of the paired volume in the remote server (active or
standby). When the primary volume is shared by two or more servers, there
CCI software environment
2-25
Command Control Interface User and Reference Guide
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