HP XC System Software Installation Guide Version 4.0

set under Serviceguard, neither node n8 nor n7 can be a member of another availability set
being managed by Serviceguard.
However, nodes n8 or n7 or both can be members of another availability set if it is managed
by an availability tool other than Serviceguard.
• If you intend to place the /hptc_cluster file system on shared storage, you must create
an availability set that contains the head node and the other node in the cluster that is
connected to the shared storage
1.9.7 Assigning Node Roles for Improved Availability
An important part of planning your strategy for improved availability is to determine the services
for which availability is vital to the system operation. Services are delivered in node roles. A
node role is an abstraction that combines one or more services into a group and provides a
convenient way of installing services on a node.
In this release, improved availability is supported for the services listed in Table 1-2. Also listed
in the table are things to consider about the role assignments if you plan to implement improved
availability for one or more of these services.
See Appendix F (page 215) to learn more about default role assignments and the full set of services
provided by each role.
30 Preparing for a New Installation