Resource SDT

Last updated - 30 March, 2026

You can use the Resource Scheduled Downtime feature to suppress alert notifications for monitored resources during planned maintenance windows. During the SDT window (that is, when the SDT is in progress), LogicMonitor continue to collect performance data and evaluate alert thresholds however it pauses notifications and escalations. SDT prevents expected outages such as patches, upgrades, reboots, or infrastructure changes from generating unnecessary alerts. Resource SDT maintain alert integrity, reduce alert noise, and preserves the accuracy of notifications outside the maintenance windows.

Resource SDTs can be applied to resources, resource groups, websites, Collectors, and LogicModules such as DataSources and EventSources. When an SDT is scheduled for a resource group, it cascades to all its child resources. You can schedule Resource SDT for a one-time frequency or on recurring basis to align with the maintenance cycles. You can modify, extend, or end an active SDT as operational needs. LogicMonitor provides visibility into scheduled and historical maintenance windows through tools such as the SDT Inventory Report.

You can schedule SDT for Websites and LogicMonitor Collectors. For more information, see Website SDT and Collector SDT.

Requirements for Adding and Managing SDT

To add or modify SDT for resources or resource groups, you need a LogicMonitor user with Manage permissions for those resources.

Adding SDT

1. In Logicmonitor, navigate to Resource Tree and select the required group to add SDT.
2. Select Schedule SDT. The Confirm Your Actions dialog box displays.
   
   
3. Select “All” or a specific DataSource from the DataSource dropdown menu.
4. Select Duration or From/To and configure the settings.
   • If you select From/To, set Frequency, and select a schedule:
     • One Time—Set a single start date and time for the SDT.
       The SDT runs once and ends at the specified time.
     • Daily—Schedule the time the SDT occurs each day.
     • Weekly—Select the day of the week for the weekly SDT.
     • Monthly (on specific day)—Select a specific day of the month.
     • Monthly (day of the week)—Select the day-of-week pattern for the monthly SDT.
5. In Start and End feilds, set the SDT start and end time.
6. Select a time zone from the Timezone dropdown menu.
7. In the Notes field, enter any notes or technical information.
8. Select Add SDT.
   The SDT is added and applied to the selected resource group.

Managing SDT

1. In Logicmonitor, navigate to Resource Tree and select the required group to manage SDT.
2. In the resource settings, select SDT tab.
3. Select Manage. The Edit SDT dialog box displays.
4. Modify the SDT settings.
5. In Applied At, review the resource the SDT applies to.
   
   
   
6. Select Save to apply changes.
7. In addition, you can stop an SDT before it begins by selecting Stop SDT and then confirming the action when prompted.