Seagate Technology Incorporated

Nachiket Shrikant Sahasrabudhe

Nikita Danilov

Mandar Sawant

Systems, apparatus, and methods for data distribution within a failure domain tree are described herein. Data objects may be distributed uniformly into symmetric failure domain trees. Asymmetric failure domain trees may be used to generate symmetric failure domain trees. The systems, apparatus, and methods may distribute a data object to attempt to satisfy the failure tolerance level of as many failure domain levels of the symmetric failure domain trees as possible.

Data distribution within a failure domain tree

Systems and methods for recovery of parity based storage systems are described. In one embodiment, a group of nodes includes one or more storage nodes, and the one or more storage nodes include one or more storage containers. In one embodiment, the one or more storage containers include one or more data storage containers, one or more parity storage containers, or one or more spare storage containers, or any combination thereof. The system and methods include a hardware controller configured to identify a first failed storage container on a first storage node from the group of storage nodes, identify data associated with the first failed storage container on at least a second storage container on a second storage node from the plurality of storage nodes, and recover the data associated with the first failed storage container from at least the second storage container on the second storage node.

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Pune, India

Nachiket Shrikant Sahasrabudhe