Specifications

What To Do If the Servers Lose Synchronization
PlantScape Server and Client Configuration Guide 329
If the Backup Server Fails
If the backup server fails, your PlantScape system runs normally, but it will not be
running in redundant mode. You should:
1 Determine the cause of the problem on the backup server and rectify it.
2 Reconfigure or re-verify (depending on the cause of the problem) the
redundancy configuration on the backup server. (Refer to “Completing the
TCP/IP Configuration of the Servers” on page 306.)
3 Resynchronize the primary and backup servers.
If There Is a Communications Failure
The servers can lose synchronization if there is a network failure and the data
link between the servers is broken.
Under software arbitration the servers cannot poll each other to determine which
is the primary. The backup server also starts running as the primary.
If the primary server is running correctly, you should stop the backup server.
When the network link is restored:
• Start the backup server
• Resynchronize the primary and backup servers
plscpcg.book Page 329 Monday, May 28, 2001 10:11 AM