Lets Azure Update Manager apply updates to Arc-enabled servers and Azure VMs inside a window that a maintenance configuration defines.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Scheduled patching in context, with comparison tables and the common traps.
Terms in this definition
- Azure Update Manager
Azure's patching service: it assesses which OS updates Azure VMs and Arc-enabled servers are missing and installs them, whether right away or within scheduled maintenance windows.
- APPLY
Evaluates a table-valued expression for every row on its left, inside
FROM. Think ofOUTER APPLYas a left outer join andCROSS APPLYas an inner join. - Virtual machines
Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.
- WINDOW
Returns rows from a sorted, optionally partitioned table, either at fixed positions (ABS) or relative to the current row (REL). Running totals plus moving averages are common uses.
- Maintenance configuration
Holds a schedule plus update options as an Azure resource. Azure Update Manager relies on these, with the InGuestPatch (Guest) scope, to patch Azure VMs and Arc-enabled servers on a timetable.