Planning and Configuring HP-UX DCE 2.0

Configuring HP-UX DCE Cells
Integrating DCE Services with HP Serviceguard
Chapter 670
Planning for a DCE-HP Serviceguard Installation
Planning for a package that includes one or more DCE servers is
primarily a process of identifying the disk and network resources
necessary for the operation of the server.
Hardware Requirements for a DCE-HP Serviceguard
Configuration
By their very nature, DCE and DCE applications are distributed, and
therefore depend heavily on network resources. Each node in the cluster
should have multiple redundant LAN cards connected to multiple LANs.
Implementation Alternatives for a DCE-HP
Serviceguard Installation
The basic configuration, which is supported by the templates, is the DCE
host failover. In this configuration, HP Serviceguard moves an entire
DCE host from one physical node to another.
An alternative configuration is the individual core server failover. In this
configuration, the DCE cluster includes a primary host and several
smaller hosts. Each of the smaller hosts can perform one or more of the
functions normally performed by the primary host. In the event of a
system failure for the primary host, HP Serviceguard moves only the
core servers on the smaller hosts from their individual physical nodes to
other physical nodes. For example, in a DCE cluster with individual
server hosts for the Security Service and the Name Service, HP
Serviceguard can move the secd or cdsd servers individually to a new
host rather than moving the entire primary host to another node.
Another alternative configuration is the redesignation of master servers
through HP Serviceguard scripts. This approach involves changing the
role of the existing replicas, making them the master servers, instead of
moving the databases to new locations.
The remaining sections in this chapter describe the basic configuration
only.
The DCE-SGUARD template fileset is available on the CD-ROM that
ships with the DCE product. See Table 3-2 in Chapter 3 and “Supported
Templates for HP Serviceguard Integration with DCE” on page 71" for
more information about filesets.