Microsoft Technology Licensing, LLC

Bradley S Smith

Ankur Jauhari

Kalyan K Kona

Sundaravadivelan Paranthaman

A computing system comprises a controller configured to detect a reassignment input to reassign all computing resources from a source server farm to a target server farm, a resource capacity reassignment component configured to incrementally reassign all of the computing resources from the source server farm to the target server farm, in a plurality of fixed increments, and a database move component configured to, after reassigning each fixed increment of the computing resources to the target server farm, move a set of databases, corresponding to a previously reassigned fixed increment of computing resources, from the source server farm to the target server farm, for servicing at the target server farm.

Rolling capacity upgrade control

A request input indicative of a request to deploy computing resources in a target server farm is received, and a fixed increment of the computing resources to be removed from a source server farm and deployed in the target server farm is identified. The fixed increment of computing resources is removed from the source server farm, and deployed to the target server farm. Based on deploying the fixed increment of computing resources to the target server farm, it is determined whether the target server farm has deployed adequate resource capacity to service a fixed increment of databases. If so, the fixed increment of databases is moved from the source server farm to the target server farm, and, if not, additional computing resources is reassigned from the source server farm to the target server farm.

In order to upgrade a source farm to a target farm, the target farm is created with an initial increment of resource capacity that is a fraction of a final resource capacity of the target farm. A corresponding increment of the databases attached to the source farm are then switched from the source farm to the target farm. The resource capacity at the source farm, that was used to service the moved databases, is then removed from the source farm and added to the target farm, and another increment of the databases are switched from the source farm to the target farm. This continues until a full capacity of resources is deployed at the target farm, and the databases are fully moved from the source farm to the target farm.

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Bradley S Smith