• HORCM_CMD (out-of-band method) on page 2-21
• HORCM_DEV on page 2-23
• HORCM_INST on page 2-25
•
HORCM_LDEV on page 2-26
•
HORCM_LDEVG on page 2-27
• HORCM_INSTP on page 2-28
•
HORCM_ALLOW_INST on page 2-28
HORCM_MON
The monitor parameter (HORCM_MON) defines the following values:
• Ip_address: Specifies the local host name or the IP address of the local
host. When you specify the name of a local host that has multiple IP
addresses, one of the IP addresses is selected at random and used. If you
want to use all IP addresses, specify NONE for IPv4 or NONE6 for IPv6.
• Service: Specifies the UDP port name assigned to the HORCM
communication path, which is registered in "/etc/services" ("%windir%
\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.
If HORCM_MON is not specified, then the following are set as defaults.
HORCM_MON
#ip_address service poll(10ms) timeout(10ms)
NONE default_port 1000 3000H
Default_port:
For none specified HORCM instance: "31000 + 0"
For instance HORCM X : "31000 + X + 1"
HORCM_CMD (in-band method)
When using the in-band method, define the UNIX device path or Windows
physical device number and specify a command device that can be accessed
by CCI for HORCM_CMD. You can specify multiple command devices in
HORCM_CMD to provide failover in case the original command device
becomes unavailable.
Tip: To enhance redundancy, you can make multiple command devices
available for a single storage system. This configuration is called command
device alternative configuration. For this configuration, command devices are
listed horizontally in a line in the configuration definition file. CMD1 and CMD2
in the following example are command devices of the same storage system:
CCI software environment
2-17
Command Control Interface User and Reference Guide
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