Patent ID: 11941278
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A non-transitory, computer-readable medium storing program instructions that, when executed on or across one or more processors, cause the one or more processors to:
detect a failed one of a plurality of head nodes of a data storage system based on a failure of the failed head node to respond to a ping; and
initiate, for one or more identified volume partitions having a replica stored on the failed head node, generation of one or more replacement replicas for the one or more identified volume partitions,
wherein the one or more replacement replicas are implemented on one or more respective remaining head nodes of the data storage system that were not detected to be failed, and
wherein volume metadata for the replacement replicas is re-mirrored from one or more of respective copies of metadata portions stored on one or more mass storage devices of the data storage system.