HP XP P9500 Storage - Manual (Page 31)

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Target ID: Defines the SCSI/fibre target ID (TID) number of the physical volume on the specified
port.
•
LU#: Defines the SCSI/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 RAID Manager configuration file.
•
MU# for Business Copy (HOMRCF): Defines the mirror unit number (0 - 2) for the identical LU
on the Business Copy. If this number is omitted it is assumed to be zero (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. Snapshot will have 64 mirror descriptions in the Business Copy and Snapshot
feature.
S-VOL P-VOL SMPL Feature
MU#1 - 63 MU#0 MU#3 - 63 MU#0-2 MU#3 - 63 MU#0-2
Not valid Valid Not valid Valid Not valid Valid Business Copy
Not valid Valid Valid Valid Valid Valid Snapshot
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MU# for HORC/Cnt Ac-J: Defines the mirror unit number (0 - 3) of one of four possible
HORC/Cnt Ac-J bitmap associations for an LDEV. If this number is omitted, it is assumed to
be zero (0). The Cnt Ac-J mirror description is described in the MU# column by adding “h”
in order to identify identical LUs as the mirror descriptor for Cnt Ac-J. The MU# for HORC
must specify “blank” as “0”. There is only one mirror description for HORC, but Cnt Ac-J will
have four mirrors, as shown below.
S-VOL P-VOL SMPL Feature
MU#h1 - h3 MU#0 MU#h1 - h3 MU#0 MU#h1 - h3 MU#0
Not valid Valid Not valid Valid Not valid Valid HORC
Valid Valid Valid Valid Valid Valid Cnt Ac-J
(4) HORCM_INST
The instance parameter (HORCM_INST) defines the network address (IP address) of the remote
server (active or standby). It is used to see 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 are
two or more remote servers using the secondary volume. Thus, it is necessary to describe the
addresses of all of these servers.
The following values are defined in the HORCM_INST parameter:
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dev_group: The server name described in dev_group of HORC_DEV.
•
ip_address: The network address of the specified remote server.
•
service: The port name assigned to the HORCM communication path (registered in the
/etc/services file). If a port number is specified instead of a port name, the port number will
be used.
When HORCM has two or more network addresses on different subnets for communication, the
ip_address of HORCM_MON must be NONE. This configuration for multiple networks can be
found using the raidqry -r <group> command option on each host. The current HORCM network
address can be changed using horcctl -NC <group> on each host.
RAID Manager instance components on the host server 31