公开(公告)号：US12086445B1

公开(公告)日：2024-09-10

申请号：US16827565

申请日：2020-03-23

Applicant: Amazon Technologies, Inc.

Inventor： Kun Tang ,  Hon Ping Shea ,  Michael Scott Ryan

IPC: G06F3/06 ,  G06F11/10 ,  G06F11/20

CPC classification number: G06F3/0644 ,  G06F3/0619 ,  G06F3/0652 ,  G06F3/067 ,  G06F3/0683 ,  G06F11/1076 ,  G06F11/2074

Abstract: A data storage system stores a plurality of partitions for a volume and at least one parity partition for the volume. The parity partition includes erasure encoded data that enables any one of the partitions to be reconstructed using the erasure encoded data of the parity partition. Additionally, the data storage system is configured to generate parity data updates in response to modifications to the volume and store updated parity data in the parity partition, such that a current state of any of the partitions of the volume can be re-created in response to a loss of one of the partitions.