About MWM maintenance windows

Use the Maintenance Window Management (MWM) web interface to create maintenance time windows and associate them with Netcool®/OMNIbus events.

Netcool/OMNIbus events are based on OMNIbus field values such as Node or Location. The Netcool/OMNIbus events are then put into maintenance according to these maintenance time windows. If events occur during a maintenance window, MWM flags them as being in maintenance by changing the value of the OMNIbus field, integer field, SuppressEscl to 6 in the alerts.status table.

A maintenance time window is prescheduled downtime for a particular asset. Faults and alarms (events) are often generated by assets that are undergoing maintenance, but these events can be ignored by operations. MWM tags OMNIbus events in maintenance so that operations know not to focus on them. You can use MWM to enter one time and recurring maintenance time windows.

• One time windows are maintenance time windows that run once and do not recur. One Time Windows can be used for emergency maintenance situations that fall outside regularly scheduled maintenance periods. You can use them all the time if you do not have a regular maintenance schedule.

• Recurring time windows are maintenance time windows that occur at regular intervals. MWM supports the following types of recurring time windows:

  • Recurring Day of Week
  • Recurring Date of Month
  • Every nth Weekday
  • Weekly Recurring

• Maintenance time windows must be linked to OMNIbus events in order for MWM to mark events as being in maintenance. When you configure a time window, you also define which events are to be associated with the time window. The MWM supports the use of all Netcool/OMNIbus fields for linking events to time windows.

  From Fix Pack 31 onwards, maintenance time windows must be linked to OMNIbus events in order for MWM to mark events as being in maintenance and in order for the maintenance time window UI pages to work properly. Otherwise, the maintenance time window page may not work as intended (including but not limited to updating and deleting new maintenance time windows). The MWM supports the use of all Netcool/OMNIbus fields for linking events to time windows.

  Note: The Time Zones that can be selected in the Time Zone drop down are a mixture of daylight saving time zones and non daylight saving time zones.

• Each maintenance window has a free format text field that allows you to add manually any additional comments or descriptive notes.