LOCATING PREVIOUS VERSIONS OF AN OBJECT IN A STORAGE CLUSTER

摘要

Technology for accessing previous versions of data objects within a storage cluster including multiple storage volumes under a common namespace is disclosed herein. In some embodiments, the network storage cluster having multiple cooperative storage nodes receives a namespace identifier for a previous version of a data object. The namespace identifier includes a namespace path containing a volume junction and a time indicator indicating a point in time when the previous version of the data object existed. The network storage cluster identifies a storage volume within the network storage cluster using the volume junction. The volume junction points to a root directory of a file system of the storage volume. The network storage cluster locates, based on the namespace path, the previous version of the data object within a snapshot copy of the storage volume, wherein the snapshot copy is identified by the time indicator.

主权项

1. A method, comprising:
receiving, at a network storage cluster that includes multiple cooperative storage nodes, a namespace identifier for a previous version of a data object, wherein the namespace identifier includes a namespace path containing a volume junction and a time indicator indicating a point in time when the previous version of the data object existed; identifying a storage volume within the network storage cluster by using the volume junction, wherein the volume junction points to a root directory of a file system of the storage volume; and locating, based on the namespace path, the previous version of the data object within a snapshot copy of the storage volume, wherein the snapshot copy is identified by the time indicator.