Editing and Managing Scenarios and Hosts › Host Maintenance › Preparing Hosts for Maintenance Procedures

Preparing Hosts for Maintenance Procedures

To prepare your hosts for maintenance procedures

1. On the Scenario pane, verify that the scenarios whose host you want to reboot are running.

   Notes:

   • You do not have to run all the scenarios in which the host participates. The preparation will be done only on the parts that involve the running scenario, for example, Exchange services in the case of Exchange scenario.
   • The host maintenance preparation cannot be performed during synchronization. If a scenario currently synchronizes, wait until it completes.
2. Click the Launch Host Maintenance button, or select Launch Host Maintenance from the Tools menu.

   The Host Maintenance wizard opens.

   The Host Maintenance wizard displays all hosts that participate in the running scenarios.

   Note: If the same host appears under different names/IPs in different scenarios, it will appear several times in this page.

3. Select the host you want to prepare for maintenance, and click Next.

   The Maintenance Procedure page opens.

   The Maintenance Procedure page displays the details of the scenarios in which the selected host participates.

4. On the Select maintenance procedure section on the left, select the operation you want to perform and click the Start button.

   On the Event pane, a message appears saying: Preparing for reboot. Then, another message appears saying: Ready for reboot.

   Note: If a message appears saying: Not Ready for Reboot, it means that the preparation did not succeed, and after you reboot the host, re-synchronization will be performed.

   Simultaneously, on the Scenario pane the scenario state is changed to Ready for HM.

   Note: The scenario's state that appears on the Scenario pane refers only to the Master host's state. Therefore, if the host you are preparing for maintenance is functioning as the Replica, you will not see its changing status in the Scenario pane, only on the Event pane and the Host Maintenance Monitor.

5. To view the status of the selected host and the scenarios in which it participates, select from the View menu the Active View, Host Maintenance Monitor option, or click the Host Maintenance Monitor button.

   The Host Maintenance Monitor view opens.

   The Host Maintenance Monitor displays all the requests for maintenance preparation. A maintenance request disappears from the Monitor when the involved scenario is either stopped or run. You cannot perform actions through the Monitor, which only displays information about the status of the current requests. The only action you can do is opening the Host Maintenance wizard by clicking anywhere in the screen and selecting Launch Host Maintenance.

   In this Monitor, the displayed host name is its fully qualified name, and not the name under which it appears in the scenarios. All the scenarios in which this host participates appear in the Monitor.

6. After you received the message informing you that the host is ready for reboot, you can reboot your host or switch groups between cluster nodes. Once you completed your maintenance procedures, the replication process automatically resumes, without performing re-synchronization.

Note: If after preparing the host for maintenance, you decided not to reboot it and continue running its scenarios, you need to stop the scenarios and re-run them.