Sun Microsystems 2005Q1 manual Portal Server High Availability Scenarios

Working with Portal Server Building Modules

Table 5-1summarizes these high availability scenarios along with their supporting techniques.

Table 5-1	Portal Server High Availability Scenarios
Component		Necessary for Best	Necessary for NSPOF	Necessary for Transparent
Requirements		Effort Deployment?	Deployment?	Failover Deployment?
Hardware Redundancy		Yes	Yes	Yes
Portal Server Building		No	Yes	Yes
Modules
Multi-master Configuration		No	Yes	Yes
Load Balancing		Yes	Yes	Yes
Stateless Applications and		No	No	Yes
Checkpointing
Mechanisms
Session Failover		No	No	Yes.
Directory Server Clustering		No	No	Yes

NOTE Load balancing is not provided out-of-the-box with the Web Server product.

Chapter 5 Creating Your Portal Design 91