WebLogic Server (WLS) 7.0

The BEA WebLogic Server for the HP NonStop
Server
HP NonStop Server Platform Guide for WebLogic Server—525779-001
1-4
Differences Between SMP Systems and HP
NonStop Servers
The Administrative Server, Managed Servers as part of a cluster, Managed Servers
independent of clusters, and Node Manager all run on a single SMP machine. The
threads of all these Java Virtual Machine (JVM) instances can be scheduled on all the
available processors (see Figure 1-2).
Fault tolerance is not built into these systems. Loss of a processor can bring down the
whole system along with all the instances running on the machine. Until the transaction
logs and other critical components are recovered on a configured backup system,
significant application outages can occur.
The same domain when deployed on a NonStop server (without any specific direction
from the WebLogic Server domain administrator) can be deployed transparently:
Figure 1-2. WebLogic Server Domain Representation on a 4-Way SMP Machine
Figure 1-3. WebLogic Server Domain Representation on a NonStop Server
VST001.vsd
Administrative
Server
Managed Server
(independent of
cluster)
Managed Server
(part of a cluster)
Node Manager
Managed Server
(part of a cluster)
Managed Server
(independent of
cluster)
Managed Server
(part of a cluster)
Managed Server
(part of a cluster)
4-way SMP Machine
VST002.vsd
Administrative
Server
Managed Server
(independent of
cluster)
CPU 0
Managed Server
(part of a cluster)
Node Manager
Managed Server
(part of a cluster)
Managed Server
(independent of
cluster)
Managed Server
(part of a cluster)
Managed Server
(part of a cluster)
CPU 1 CPU 2 CPU 3