HP Serviceguard Quorum Server Version A.04.00 Release Notes, March 2009

NOTE: If you are using a version of Serviceguard that supports alternate subnets (see
“Compatibility with Serviceguard Versions” (page 12)), you can specify a second
hostname or IP address in the -q option (all one line):
cmquerycl -q <QS_Host> <QS_Addr> -n <Node1> -n <Node2> -C
<ClusterName>.config
QS_Host and QS_Addr can each be either a fully qualified hostname or an IP address.
The resulting file contains the QS_HOST, QS_POLLING_INTERVAL, and
QS_TIMEOUT_EXTENSION parameters, and the QS_ADDR parameter if your version
of Serviceguard supports it. In that case, the Quorum Server section of the file looks
like this:
# for the quorum server timeout, enter
# QS_HOST qs_host
# QS_ADDR qs_addr
# QS_POLLING_INTERVAL 120000000
# QS_TIMEOUT_EXTENSION 2000000
QS_HOST gf2_qs1
QS_ADDR 15.106.73.114
QS_POLLING_INTERVAL 300000000
If your version of Serviceguard supports alternate subnets, but you are working with
an existing cluster configuration file that does not contain the QS_ADDR parameter,
you can add this parameter, and its value, yourself.
You can use the optional QS_TIMEOUT_EXTENSION to increase the time interval (in
microseconds) after which the current connection (or attempt to connect) to the quorum
server is deemed to have failed; see “Network Recommendations” (page 12).
NOTE: Increasing this value will increase the failover time accordingly; that is, if
failover time is currently 30 seconds and you set QS_TIMEOUT_EXTENSION to one
second, the failover time will increase to 31 seconds.
Setting Quorum Server Parameters for IPv6 Subnets
Serviceguard A.11.19 clusters support IPv6 addresses for both QS_HOST and QS_ADDR,
but you cannot supply IPv6 addresses, or hostnames that resolve only to IPv6 addresses,
to cmquerycl. You must generate the cluster configuration file using an IPv4 address,
then edit it to supply the IPv6 address(es) you will actually use.
Proceed as follows to create two IPv6 connections to the Quorum Server:
1. Make sure that there is at least one IPv4 address on the Quorum Server that can
be reached by all the cluster nodes.
2. Generate the cluster configuration file; for example:
cmquerycl -q <QS_Host> -n <Node1> -n <Node2> -C
<ClusterName>.conf
18 HP Serviceguard Quorum Server Version A.04.00 Release Notes