Managing Serviceguard Eighteenth Edition, September 2010

NOTE: This also applies if HOSTNAME_ADDRESS_FAMILY is set to ANY. See
“Allowing Root Access to an Unconfigured Node” (page 216) for more information.
• If you use a Quorum Server, you must make sure that the Quorum Server hostname
(and the alternate Quorum Server address specified by QS_ADDR, if any) resolve
to IPv6 addresses, and you must use Quorum Server version A.04.00 or later. See
the latest Quorum Server release notes for more information; you can find them
at www.hp.com/go/hpux-serviceguard-docs under HP Serviceguard
Quorum Server Software.
NOTE: The Quorum Server itself can be an IPv6–only system; in that case it can
serve IPv6–only and mixed-mode clusters, but not IPv4–only clusters.
• If you use a Quorum Server, and the Quorum Server is on a different subnet from
cluster, you must use an IPv6-capable router.
• Hostname aliases are not supported for IPv6 addresses, because of operating
system limitations.
NOTE: This applies to all IPv6 addresses, whether
HOSTNAME_ADDRESS_FAMILY is set to IPV6 or ANY.
• Cross-subnet configurations are not supported in IPv6-only mode.
NOTE: This also applies if HOSTNAME_ADDRESS_FAMILY is set to ANY. See
“Cross-Subnet Configurations” (page 41) for more information about such
configurations.
• CFS, CVM, VxVM, and VxFS are not supported in IPv6–only mode.
NOTE: CFS and CVM should not be installed on any system in an IPv6–only
cluster, even if they are not configured.
This also means that the Serviceguard component of bundles that include
Serviceguard cannot be configured in IPV6 mode.
• HPVM is not supported IPv6-only mode. You cannot configure a virtual machine
either as a node or a package in an IPv6-only cluster.
Cluster Configuration Planning 141