What will be the impact of scheduling "Schedule Updates" for redis cache ?
Hi @SusheelYadav-2055, welcome to Microsoft Q&A forum.
As mentioned in the article, "Schedule updates allows you to choose a maintenance window for your cache instance. A maintenance window allows you to control the day(s) and time(s) of a week during which the VM(s) hosting your cache can be updated. Azure Cache for Redis will make a best effort to start and finish updating Redis server software within the specified time window you define."
It means that we can define the maintenance window by choosing the time which has the minimum impact on the application usage. Like if we know that our application has less usage over Sunday night or early morning hours then we can choose that window and the updates would occur in that window itself causing minimum impact on the users and applications.
The default, and minimum, maintenance window for updates is five hours. This value isn't configurable from the Azure portal, but you can configure it in PowerShell using the MaintenanceWindow parameter of the New-AzRedisCacheScheduleEntry cmdlet.
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