Pure Storage, Inc.
Managed data slice maintenance in a distributed storage system

Abstract:

A computing device includes an interface configured to interface and communicate with a storage network, a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory. The processing circuitry is configured to execute the operational instructions to perform various operations and functions. The computing device determines to execute maintenance operations on a set of memory devices, selects a subset of the set of memory devices for the maintenance operations and initiates execution of the maintenance operations on the subset of memory devices. When a read request is received for a set of encoded data slices (EDSs) associated with the subset of memory devices, the computing device is configured to identify a threshold number of EDSs not associated with the subset of memory devices, issue read requests to storage units storing the threshold number of EDSs and determine whether the subset of memory devices have completed executing the maintenance operations.