System and method for recovering file systems by restoring partitions

摘要

According to one embodiment, recovering file systems by restoring partitions is described. In one example, a method includes discovering an error in a storage partition of a file storage system, the storage partition including identification metadata to identify itself to the file system, finding a backup storage partition containing data and identification metadata corresponding to that of the error storage partition, restoring the error storage partition using the backup storage partition, and using the restored identification metadata to identify the restored storage partition to the file system.

主权项

1. A computer implemented method for recovering a file system, the method comprising:
discovering an error in a storage partition of a file storage system, the storage partition including identification metadata to identify itself to the file system, the error indicating that the storage partition having a portion of the file system that is not available, wherein the file storage system is a deduplicated file storage system that stores a reference to a previously stored data segment upon receiving a new data segment when the new data segment has already been stored in the file storage system; finding a backup storage partition containing data and identification metadata corresponding to that of the error storage partition, wherein the backup storage partition is among a plurality of storage partitions to find the backup storage partition containing the data and identification metadata, wherein the identification metadata is used to identify backup storage partition corresponding to that of the error storage partition, and wherein the error storage partition and the backup storage partition can be individually shut down or powered up; restoring the error storage partition using the backup storage partition; and using the restored identification metadata to identify the restored storage partition to the file system.