Grass Valley iControl V.4.43 - Manual (Page 600)

Backup and Redundancy
Managing and Recovering from a Manual Takeover or Auto-failover
590
To configure and manage a Redundancy Group
1. Turn off the iControl services on your intended Backup Application Server (see "Stopping
iControl Services on the Intended Backup Application Server" , on page 604).
2. Create a Redundancy Group (see page 591 ).
3. Add an Application Server to your Redundancy Group (see page 596 ).
Perform this step for each remaining Application Server you would like to add to your
Redundancy Group, whether its intended role is Backup or Main.
Managing and Recovering from a Manual Takeover or Auto-failover
To manage and recover from a Manual Takeover or Auto-failover
1. If you are performing a Manual Takeover from a Main Application Server to a Backup
Application Server, do so now (see "Initiating a Manual Takeover to a Backup Application
Server" , on page 602).
2. Perform any required maintenance work on the configured Main Application Server
(currently offline).
3. If you would like to return the configured Main Application Server to an active Main role,
see "Restoring an Offline, Configured Main Application Server to Online Status" , on
page 607.
IMPORTANT: Application Server Installation / Commissioning Notice
After configuring the Redundancy Group for the 1st time, it is highly
recommended that you perform ONE of the following tests, as required:
•
For every Main Application Server whose Auto-failover function is
disabled, perform a Manual Takeover followed by a Reverse Takeover to
ensure that everything is properly configured.
• For every Main Application Server whose Auto-failover function is
enabled, disconnect that Application Server’s eth0 port from Main
Application Server followed by a Reverse Takeover.
IMPORTANT: If you configure your Redundancy Group NOT to take over the Main’s
IP address upon failover or takeover, make sure you keep the Backup
Application Server’s IP address configured in System tools | Edit service
locations | Service and alarm discovery on all Application Servers that
belong to the Redundancy Group.
REQUIREMENTS
Make sure you meet the following conditions before beginning this procedure:
• You have already configured your Redundancy Group and all required Application
Servers are associated with it (see "Configuring and Managing a Redundancy Group" , on
page 589).
• If you are not performing a Manual Takeover, then an Auto-failover has already occurred.