Change Blackout Window

Updated on 15 Apr 2024
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Change Blackout Window refers to a specified period during which changes to the IT environment are restricted or prohibited.

During Change Blackout Window period, organizations freeze modifications to critical systems to prevent disruptions, especially during peak hours or important operations. These blackout periods are used during maintenance, upgrades, or critical events to maintain stability.

You can define the blackout periods for a CI or a set of CIs during the maintenance phase of the CI items. The time period during which the blackout is defined is referred to as Freeze Time of CIs. During the Freeze Time, you cannot modify the CIs and the associated CRs.

User Persona: Analyst

Let's explore the following use-case.

Use Case

User Persona: Analyst

Solution

NovaTech provides cloud-based services to its clients, including hosting critical business applications and databases. They have scheduled routine maintenance for their data centers to perform hardware upgrades and software patches.

However, they have a major client who runs a mission-critical application on NovaTech's infrastructure and relies heavily on it for daily operations. This client is entering a busy period where any downtime could result in significant financial losses and damage to their reputation.

can implement a Change Blackout Window to ensure minimal disruption to their client's operation.
He can schedule a Blackout Window for the duration of their client's busiest week, during which no non-essential changes will be made to the infrastructure supporting the client's application.

Configure Change Blackout Window

To configure the Change Blackout Window, perform the following steps.

1. Navigate to Service Management > CMDB > Manage Configuration Item > Change Blackout Window.
Change Blackout Window Configuration List page is displayed.

Figure: Change Blackout Window Configuration List page

2. Click New to create a new Change Blackout Window configuration. In the configuration page, provide all the required details as shown below.
For more information on fields, see Field Description.

Figure: Change Blackout Window configuration page

Field Description

This table contains the list of fields and their descriptions that are available under the Change Blackout Window configuration segment:

Field	Description
Tenant *	Select a Tenant from drop-down.
From and To Date	Select the From and To Date to define the Blackout Window period.
Time Zone	Select the Time Zone for the Blackout Window.
Selection Criteria	Select the criteria: All CIs or Specific CIs.
Select CIs	Choose the necessary CIs by selecting the checkboxes.
Active	Activate this configuration by selecting the 'Active' checkbox.

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