Managing HP Serviceguard for Linux, Tenth Edition, September 2012

Use the cmquerycl command to specify a set of nodes to be included in the cluster and
to generate a template for the cluster configuration file.
IMPORTANT: See NODE_NAME under “Cluster Configuration Parameters ” (page 103)
for important information about restrictions on the node name.
Here is an example of the command (enter it all one line):
cmquerycl -v -C $SGCONF/clust1.conf -n ftsys9 -n ftsys10
This creates a template file, by default /etc/cmcluster/clust1.conf. In this output
file, keywords are separated from definitions by white space. Comments are permitted,
and must be preceded by a pound sign (#) in the far left column.
NOTE: HP strongly recommends that you modify the file so as to send heartbeat over
all possible networks.
The manpage for the cmquerycl command further explains the parameters that appear
in this file. Many are also described in Chapter 4: “Planning and Documenting an HA
Cluster ” (page 91). Modify your /etc/cmcluster/clust1.configfile as needed.
cmquerycl Options
Speeding up the Process
In a larger or more complex cluster with many nodes, networks or disks, the cmquerycl
command may take several minutes to complete. To speed up the configuration process,
you can direct the command to return selected information only by using the -k and -w
options:
-k eliminates some disk probing, and does not return information about potential cluster
lock volume groups and lock physical volumes.
-w local lets you specify local network probing, in which LAN connectivity is verified
between interfaces within each node only. This is the default when you use cmquerycl
with the-C option.
(Do not use -w local if you need to discover nodes and subnets for a cross-subnet
configuration; see “Full Network Probing”.)
-w none skips network querying. If you have recently checked the networks, this option
will save time.
Specifying the Address Family for the Cluster Hostnames
You can use the -a option to tell Serviceguard to resolve cluster node names (as well as
Quorum Server hostnames, if any) to IPv4 addresses only (-a ipv4) IPv6 addresses
only (-a ipv6), or both (-a any). You can also configure the address family by means
of the HOSTNAME_ADDRESS_FAMILY in the cluster configuration file.
180 Building an HA Cluster Configuration