Configuring CMDB Sync blackout windows

CMDB synchronization can usually occur at any time. To prevent CMDB access for a connection during sensitive times, you can configure blackout windows to occur. During a blackout window, all processing of the CMDB synchronization queue for that connection is paused. New nodes can still be scheduled for synchronization, both by continuous synchronization and batch synchronization, but no processing occurs until the blackout window ends.

To configure a CMDB Sync blackout window

1. Click the name of a CMDB sync connection on the CMDB sync home page. 
   The Manage CMDB Connection page is displayed
2. On the CMDB Sync connection page, click the Blackout Windows tab.
3. To add a new blackout window, click Add.
   The Add a New Blackout Window dialog is displayed. 

4. Enter the information for the blackout window in the fields described in the following table.

   
   

   Field name	Details
   Comment	Enter a comment for the blackout window. Where the blackout window is referred to in the UI, this label is shown.
   Frequency	Select a frequency for the blackout window. For example, this can be: Weekly by days of week Once per week Monthly by day of month Monthly by week of month
   Start	Based on the selected frequency, the following options for starting the blackout window is displayed: Weekly by days of week: You are provided with buttons to select the days and drop down menus to select the start time in hours and minutes for the blackout window. You can select one or more days from the day buttons. The selected buttons appear with a Yellow border. Once per week: You are provided with drop down menus to select the day and start time in hours and minutes for the blackout window. Monthly by day of month: You are provided with drop down menus to select the day of the month and the start time in hours and minutes for the blackout window. Monthly by week of month: You are provided with drop down menus to the select the week, the day of the week, and the start time in hours and minutes for the blackout window.
   End	Based on the selected frequency, the following options for ending the blackout window is displayed: Weekly by days of week: You are provided with drop down menus to select the time in hours and minutes to end the blackout window. Once per week: You are provided with drop down menus to select the day of the week and time to end the blackout window. Monthly by day of month: You are provided with drop down menus to select the day of the month and the time in hours and minutes to end the blackout window. Monthly by week of month: You are provided with drop down menus to the select the number of days and the time in hours and minutes to end the blackout window.

5. Click OK. 
   The Blackout Windows tab displays the configured CMDB Sync blackout windows.
   

To edit an existing blackout window

You can edit an existing CMDB Sync blackout window. If the blackout is currently in progress, it is automatically cancelled when you edit it.

1. From the Blackout Windows tab of the CMDB Sync connection page, click Edit for the corresponding blackout window.
   The Edit an Existing Blackout Window dialog is displayed.
2. Edit the fields as required.
3. Click OK.

To delete an existing blackout window

You can delete an existing CMDB Sync blackout window.

1. From the Blackout Windows tab of the CMDB Sync connection page, click Delete for the corresponding blackout window.
2. When prompted, confirm the deletion of the blackout window by clicking OK.