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PowerPath for UNIX Installation and Administration Guide
PowerPath in a Cluster Environment
PowerPath in a VERITAS Cluster Server Cluster
This section describes how to:
◆ Install PowerPath and VCS in a new cluster, that is, where neither
the PowerPath nor the VCS software is installed on any host to be
included in the cluster.
◆ Integrate PowerPath into an existing VCS cluster.
For new installations of VxVM, use native
c#t#d# devices. Do not
initialize emcpower devices for VxVM using
powervxvm.
If emcpower devices already exist in a VxVM disk group that is being
added as a resource group to VCS, those devices should remain in the
disk group as emcpower devices for as long as they comprise active
VxVM logical volumes.
Installing PowerPath
in a New VCS
Cluster
To install PowerPath and VCS when neither PowerPath nor VCS is
installed on any host:
1. On each host to be included in the cluster:
a. Prepare the cluster hardware, making the necessary
networking and disk connections among the hosts and the
storage system. Refer to the EMC Host Connectivity Guides or
the Installation Roadmap for FC-Series Storage Systems and the
relevant VERITAS Cluster Server documentation for more
information.
b. Use the Solaris
format utility to verify that all storage system
devices are seen by each host.
c. Install PowerPath and, if you are using PowerPath Volume
Manager in the cluster, the PowerPath Volume Manager VCS
Agent. Refer to Chapter 1, Installing PowerPath. Verify that
PowerPath can see all the devices.
d. Install any applications.
e. Install the VCS software, following the installation procedure
described in the relevant VERITAS Cluster Server
documentation. Initially configure VCS to run without a
service group.
If you are using PowerPath Volume Manager in the cluster,
proceed with step 2. If you are not using PowerPath Volume
Manager, go to step 3.