PRIORITIZED REPAIR OF DATA STORAGE FAILURES

摘要

Embodiments are directed towards managing data storage that may experience a data failure. If a repair event is associated with a data storage failure, a new repair task may be generated and added to a task list. A priority value for each repair task in the task list may be determined based in part on the mean-time-to-data-loss (MTTDL) value associated with each repair task in the task list such that a lower MTTDL may indicate a higher priority value over a lower MTTDL. One or more repair tasks may be promoted to become active repair tasks based on the priority value the repair tasks such that the promoted repair tasks have a higher priority that than other repair tasks in the task list, if any. Each active repair task may be executed to repair one or more associated the storage failures.

主权项

1. A method for managing data storage over a network using a network computer that executes instructions that perform actions, comprising:
when one or more repair events are associated with one or more new storage failures on a storage unit or a repair symbol unit, generating one or more new repair tasks that are associated with the one or more new storage failures; determining a resource budget based on a network bandwidth capacity for one or more different portions of the network, wherein the resource budget includes separate values for each of the different portions of the network; promoting the one or more repair tasks to be one or more new active repair tasks when a priority value for the one or more repair tasks is higher than a priority value for one or more active repair tasks and enough of the resource budget is available to execute the one or more new active repair tasks when each active repair task is executing; and executing each active repair task to repair the one or more storage failures that are associated with the one or more active repair tasks.