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The following sections give an overview of how PMDF can be installed and used in an OpenVMS cluster environment.
1.3.1 OpenVMS Cluster Installation
If you have a completely homogeneous OpenVMS cluster, that is, a single
authorization file (SYSUAF), rightslist (RIGHTSLIST), mail profile
(VMSMAIL_PROFILE), queue file (JBCSYSQUE or SYS$QUEUE_MANAGER.*), and
network database are shared across the OpenVMS cluster, installing PMDF
is the same as on a single node. All individual host names are aliases
for a single host, and should be rewritten to the local host name. The
automatic configuration generator is capable of building most of such a
configuration automatically.
If you have a more heterogeneous OpenVMS cluster, especially one with multiple authorization files (SYSUAF), the simplest thing to do is install separate copies of PMDF for each homogeneous group of systems. In particular, multiple QUEUE, LOG, and TABLE directory areas will be needed. Other directories can be shared.
There is no great difficulty in installing PMDF in multiple locations. The startup command files will need to be moved to system specific areas once they have been created, but other than that the installation should require no unusual modifications. The command definitions for PMDF all use the PMDF_ROOT logical name to find needed files and as such separate DCLTABLES should not be needed.
1.3.2 Mixed Architecture Cluster Installation
The PMDF installation procedure installs the executables for the architecture of the system on which the installation is performed automatically; when installing PMDF for use in a mixed architecture cluster, answer YES
to the installation question asking whether the other architecture
executables should be installed also. If you are adding systems of a
new architecture (that you didn't have before) to your cluster, you
would need to install PMDF again on the new architecture(s) to get the
new executables. As long as they still constitute a homogeneous OpenVMS
cluster, they can share the same PMDF configuration and directory. The
only difference as far as PMDF is concerned is the additional
installation of the architecture-specific directories containing the
executables and other files.
This can be performed by running the post_install.com
procedure on a system of each of the other architecture types, as the
installation procedure will instruct you. The same is true in a
heterogeneous mixed architecture OpenVMS cluster.
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