it has the system requirement information as well
Migrating legacy installations of Symantec Critical
System Protection
You can migrate legacy installations for the following Symantec Critical System
Protection software:
■ Symantec Critical System Protection 5.0.0 (server, console, agent)
■ Symantec Critical System Protection 5.0.1 (server, console, agent)
■ Symantec Critical System Protection 5.0.5 (server, console, agent)
■ Symantec Critical System Protection 5.1.0 (server, console, agent)
When migrating legacy installations for Symantec Critical System Protection,
you should note the following:
■ If you upgrade the management server, then you must also upgrade the
management console to the same version, and vice versa. The management
server and management console must be the same version.
■ Upgrading the agent is optional; you can use agent 5.0.0, agent 5.0.1, agent
5.0.5, or agent 5.1 with the latest version of the management server and
management console. However, if you upgrade the agent to the latest version,
then you must also upgrade the management server and management console.
■ To use simple failover, you must upgrade the management server, management
console, and agent to version 5.1.1 or higher.