Installing updates and service packs
3.7 Deactivating and activating redundant OS servers
Compendium Part D - Operation and Maintenance (V9.0)
Operating Manual, 02/2018, A5E43228948-AA
33
To safeguard process operation on a permanent basis, you should never deactivate both
computers of a redundant OS server pair at the same time. You must always deactivate the
standby server first.
1. Check the configuration of the PCS 7 plant.
2. Check that the OS clients are configured correctly.
3. Check the plant status of the PCS 7 plant.
4. Check that the redundant OS server is operating correctly.
5. Deactivate Runtime on the standby OS server.
6. Check that the plant is operating correctly without an available standby OS server.
When activating redundant servers, it is important to ensure that the first server has been
fully activated before activating the redundancy partner.
No client should be running before the servers are activated for the first time. The OS clients
can then be activated.
The functionality of the client-server system needs to be checked once the OS server has
been activated.
Read the section titled "Checking the OS functionality after restarting an OS server
(Page 31)" for more information.
1. Check that the OS server is configured correctly.
2. Check that the OS clients are configured correctly.
3. Check the plant status of the PCS 7 plant.
4. Open the WinCC project on the standby OS server.
5. Activate Runtime of the OS server, if an automatic start has not been configured.
6. Check that the OS server and connected OS clients are operating correctly.
7. Check the archive synchronization of the redundant OS server.
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