Method and apparatus for dynamically managing access to logical unit numbers in a distributed storage area network environment

摘要

A method of dynamically adjusting a logical unit number failure domain in a distributed storage area network environment, a non-transitory computer readable medium, and an apparatus wherein at least one of the plurality of nodes of the cluster is connected to another of the plurality of nodes of the cluster. Determining when the node has been disconnected. A logical unit number (LUN) owned by each of the plurality of nodes is identified. The fault domain for any of the identified LUNs owned by at least one of the plurality of nodes determined to be detached is changed from a distributed task set mode of operation (DTM) to a single task set mode of operation (STM). ) Is adjusted. This coordination is performed from DTM operation to STM operation without communication to any of the one or more host computing devices that interact with the cluster. [Selection diagram] Fig. 3