HP Serviceguard Version A.11.20 Release Notes, April 2011

GUI (or some combination of these two methods). As of Serviceguard A.11.20, there is a third
option, called Easy Deployment.
The Easy Deployment tool consists of three commands: cmpreparecl (1m), cmdeploycl
(1m), and cmpreparestg (1m). In addition, there is a new -N option to cmquerycl, which
you can use to obtain networking information for the cluster heartbeat. These commands allow
you to get a cluster up and running in the minimum amount of time. The commands:
• Configure networking and security (cmpreparecl (1m))
• Create and start the cluster with a cluster lock device (cmdeploycl (1m))
• Create and import volume groups as additional shared storage for use by cluster packages
(cmpreparestg (1m)).
In the April 2011 patch (PHSS_41628), the cmdeploycl (1m) and cmpreparestg (1m)
commands have been enhanced as part of further development to the Easy Deployment feature.
cmdeploycl (1m) is enhanced with the following options:
• A new -s [site] option that can be used to configure site-aware disaster-tolerant clusters,
which requires Metrocluster software to be installed. It also mandates the use of quorum server
when sites are specified. cmdeploycl (1m) can be used to configure a single site cluster
using either a quorum server or lock LUN.
• A new -cfs option is used to deploy a Serviceguard cluster with SG-CFS-pkg. This is a
required option if you intend to enable CVM/CFS on a cluster by configuring SG-CFS-pkg.
cmpreparestg (1m) is enhanced to support the creation and modification of VxVM/CVM disk
groups. A new -g option is included to serve this purpose. When -g is used, you can specify the
disk group options using the -o dg_opts option.
For more information, see the man pages of cmdeploycl (1m) and cmpreparestg (1m).
See also “Cluster-wide Device Special Files (cDSFs)” (page 18).
Advantages of Easy Deployment
• Quick and simple way to create and start a cluster.
• Automates security and networking configuration that must always be done before you configure
nodes into a cluster.
• Simplifies cluster lock configuration.
• Simplifies creation of shared storage for packages.
Limitations of Easy Deployment
• Does not install or verify Serviceguard software.
• Requires agile addressing for disks. See “About Device Special Files (DSFs)” (page 32).
• cmpreparestg (1m) will fail if cDSFs and persistent DSFs are mixed in a volume group.
See “Cluster-wide Device Special Files (cDSFs)” (page 18) for more information about cDSFs.
• Does not configure access control policies.
• Does not install or configure firewall and related software.
• Does not support cross-subnet configurations.
• Does not configure packages.
• Does not discover or configure a quorum server (but can deploy one that is already configured).
What’s in this Release 17