Veritas recommends that, especially in large backup environments (more than 1000 backup jobs a day), you install OpsCenter Server on a separate standalone host than on the backup product host or OpsCenter Agent hosts

Veritas recommends that you install OpsCenter Server on a system having at least 8 GB RAM. System configuration largely depends on the number of backup products to be monitored, alerts, or jobs that are generated per day and so on.

If 8.3 file name creation is disabled on a Windows host, it is recommended that you enable it and restart the Windows host before installing or upgrading OpsCenter components.

See the following link for details:

http://technet.microsoft.com/en-us/library/ff621566%28WS.10%29.aspx

Veritas recommends that you install OpsCenter Agent on a host that is different from the OpsCenter Server host.

Veritas recommends that you deploy the OpsCenter Agent geographically closer to the managed server.

In a clustered environment, first install OpsCenter Server on the active node and then on the passive nodes. Note that OpsCenter supports only Windows VCS clusters.

Ensure that you install OpsCenter Server, Agent, and View Builder of the same versions.

To achieve optimum performance, configure the OpsCenter log files to be created on a physical disk that is different from where the OpsCenter Server and operating system (OS) files are installed.

If you have the database transaction logs and databases at different locations, move the logs to the database location before upgrade.

Ensure that the available disk space is at least three times the database size.

Back up the OpsCenter database before performing changes like database defragmentation, upgrade, applying Emergency Engineering binaries (EEB), object merge and so on.

Refer to the 'Backing up the OpsCenter database' section in the OpsCenter Administrator's Guide.

http://www.veritas.com/docs/DOC5808