Balancing traffic through logical unit range partitioning

摘要

An approach is provided in which a storage system includes a first storage controller, a second storage controller, and multiple logical units. The storage system detects that a controller traffic load ratio between the first storage controller and the second storage controller has reached a threshold. As such, the storage system selects one of the logical units and partitions the selected logical unit into multiple logical units. The storage system, in turn, changes a preferred controller ownership of one of the logical unit partitions from the first storage controller to the second storage controller.

主权项

1. A method comprising:
detecting, by a storage system, that a controller traffic load ratio between a first storage controller and a second storage controller has reached a threshold, wherein the first storage controller and the second storage controller correspond to at least one of a plurality of logical units included in the storage system; partitioning a selected one of the plurality of logical units into a plurality of logical unit partitions in response to the controller traffic load ratio reaching the threshold; and changing a preferred controller ownership of a selected one of the plurality of logical unit partitions from the first storage controller to the second storage controller.