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HORCM_MON. The monitor parameter (HORCM_MON) defines the following values:
Ip_address: The network address (IPv4 or IPv6) of the local host. When HORCM has two
or more network addresses on different subnets or MPE/iX, enter NONE for IPv4 or
NONE6 for IPv6 here.
Service: Specifies the UDP port name assigned to the HORCM communication path,
which is registered in "/etc/services" ("\WINNT\system32\drivers\etc\services" in
Windows, "SYS$SYSROOT:[000000.TCPIP$ETC]SERVICES.DAT" in OpenVMS). If a port
number is specified instead of a port name, the port number will be used.
Poll: The interval for monitoring paired volumes. To reduce the HORCM daemon load,
make this interval longer. If set to -1, the paired volumes are not monitored. The value
of -1 is specified when two or more CCI instances run on a single machine.
Timeout: The time-out period of communication with the remote server.
HORCM_CMD. The command parameter (HORCM_CMD) defines the UNIX device path or
Windows physical device number of the command device. The command device must be
mapped to the SCSI/fibre using the LUN Manager remote console software (or SVP). You can
define more than one command device to provide failover in case the original command
device becomes unavailable (see section 2.8.6).
Note: To enable dual pathing of the command device under Solaris systems, make sure to
include all paths to the command device on a single line in the HORCM_CMD section of the
config file. Putting the path information on separate lines may cause parsing issues, and
failover may not occur unless the HORCM startup script is restarted on the Solaris system.
When a server is connected to two or more storage systems, the HORCM identifies each
storage system using the unitID (see Figure 2.26). The unitID is assigned sequentially in the
order described in this section of the configuration definition file. The server must be able
to verify that unit ID is the same Serial# (Seq#) with among server when the storage system
is shared by two or more servers. This can be verified using the raidqry command.
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Chapter 2 Overview of CCI Operations
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Troubleshooting
