Configuring Quorum Servers
When you log on to the everRun system for the first time, configure quorum servers.
Notes:
- For a VM to recognize quorum server configuration changes, you must reboot the VM by shutting it down and then restarting it. See Shutting Down a Virtual Machine and Starting a Virtual Machine.
- Windows Updates on a quorum server can interrupt the server's operation, which affects fault-recovery behavior. On quorum servers, you should schedule Windows Updates during a maintenance period or disable Windows Updates.
To configure quorum servers
- Click Preferences in the left-hand navigation panel, to open the Preferences page.
- Click Quorum Servers.
- Click Add Quorum Server.
- In the Add Preferred Quorum Server dialog box, enter the following values (if a preferred quorum server already exists, the Add Alternate Quorum Server dialog box appears):
- DNS or IP Address—Type the fully-qualified DNS host name or IP address for the preferred quorum server.
- Port (the default value is 4557)—Type the port number if it is different from the default.
Click Save to save the values.
- Repeat steps 4 and 5 to configure a second, alternate quorum server. Stratus recommends configuring two quorum servers.
- To enable quorum service, select the Enabled check box and click Save.
To remove a quorum server
Caution: If you remove the preferred quorum server, the alternate quorum server becomes the preferred quorum server. If no alternate quorum server exists, removing the preferred quorum server automatically disables quorum service.
- Navigate to the Preferences page of the everRun Availability Console.
- Click Quorum Servers.
- Locate the entry for the quorum server you want to remove.
- In the right-most column, click Remove.
Note: If a VM is using the quorum server that you are removing, you must reboot the VM so that it no longer recognizes the quorum server, which allows the removal process to finish.
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