ERROR RECOVERY IN A STORAGE CLUSTER

摘要

A plurality of storage nodes within a single chassis is provided. The plurality of storage nodes is configured to communicate together as a storage cluster. The plurality of storage nodes has a non-volatile solid-state storage for user data storage. The plurality of storage nodes is configured to distribute the user data and metadata associated with the user data throughout the plurality of storage nodes, with erasure coding of the user data. The plurality of storage nodes is configured to recover from failure of two of the plurality of storage nodes by applying the erasure coding to the user data from a remainder of the plurality of storage nodes. The plurality of storage nodes is configured to detect an error and engage in an error recovery via one of a processor of one of the plurality of storage nodes, a processor of the non-volatile solid state storage, or the flash memory.

主权项

1. A method for error recovery in a storage system, performed by a plurality of storage nodes of the storage system, comprising:
detecting a failure of a first one of the plurality of storage nodes having a remote procedure call cache; and accessing a mirrored remote procedure call cache in a second one of the plurality of storage nodes, with the mirrored remote procedure call cache mirroring the remote procedure call cache of the first one of the plurality of storage nodes.