SYSTEMS AND METHODS FOR HIGH AVAILABILITY IN MULTI-NODE STORAGE NETWORKS

摘要

Systems and methods for increasing high availability of data in a multi-node storage network are provided. Aspects may include allocating data and mirrored data associated with nodes in the storage network to storage units associated with the nodes. Upon identifying additional nodes added to the storage network, data and mirrored data associated with the nodes may be dynamically reallocated to the storage units. Systems and methods for high availability takeover in a high availability multi-node storage network are also provided. Aspects may include detecting a fault associated with a node in the storage network, and initiating a takeover routine in response to detecting the fault. The takeover routine may be implemented to reallocate data and mirrored data associated with the nodes in the storage network among the operable nodes and associated storage units.

主权项

1. A method for increasing high availability of data in a multi-node storage network, the method comprising:
dynamically reallocating, by at least one processor module in the storage network, data which has been allocated to a first storage unit associated with a first node that includes first data associated with the first node and mirrored second data associated with a second node, and data which has been allocated to a second storage unit associated with the second node which includes second data associated with the second node and mirrored first data associated with the first node, to rebalance at least one of the mirrored first data and mirrored second data by allocating to a third storage unit associated with a third node at least one of the mirrored first data and mirrored second data and allocating mirrored third data associated with the third node onto at least one of the first and second storage units.