Abstract: Systems and methods for creation of bucket-level snapshots and snapshot ownership determination are provided. In one example, a storage system maintains a bucket containing multiple objects each having one or more object versions. A snapshot of the bucket may be efficiently created to protect object versions in the bucket at a specific point in time by simply adding an entry, containing information regarding a snapshot identifier (ID) and a snapshot creation time indicator, to a snapshot metafile. Object-modifying operations may be hooked to internally modify them while making it appear to the client the operation has been successfully completed. For example, before deletion of a particular object, an “Is-Object-Protected” check may be performed based on time indicators of the one or more object versions and respective snapshot creation time indicators. When the particular object is protected, it may be subsequently hidden from the client but maintained as an internal version.

Abstract: Systems and methods for performing an instant and immediately consistent snapshot restore from a client perspective are provided. In one example, a storage system, may restore a previous version of one or more objects to a bucket based on a snapshot of the bucket by performing a background restore process. During the background restore process, the restoration of the previous version of the one or more objects is made to appear instant to a client. For example, during the background restore process, object accesses by the client associated with a read-only operation may be redirected to content of the snapshot. Additionally or alternatively, during the background restore process, prior to acting on a request from the client involving an object-modifying operation relating to a particular object of the one or more objects, the previous version of the particular object may be restored on-demand.

Abstract: Methods, non-transitory machine readable media, and computing devices that ensure correctness of file system analytics are disclosed. With this technology, a first generation number for a volume is incremented in response to a modification of a rule set that defines properties of objects of a file system associated with the volume. A determination is made when a second generation number in a first inode for a first one of the objects matches the first generation number. The first inode is identified based on a traversal of a directory tree associated with the file system. The modified rule set is applied to the properties for the first one of the objects to obtain values, when the second generation number fails to match the first generation number. Analytics data is output after the traversal has completed. The analytics data is generated in response to a query and is based on the values.

Abstract: Methods, non-transitory machine readable media, and computing devices that ensure correctness of file system analytics are disclosed. With this technology, a first generation number for a volume is incremented in response to a modification of a rule set that defines properties of objects of a file system associated with the volume. A determination is made when a second generation number in a first inode for a first one of the objects matches the first generation number. The first inode is identified based on a traversal of a directory tree associated with the file system. The modified rule set is applied to the properties for the first one of the objects to obtain values, when the second generation number fails to match the first generation number. Analytics data is output after the traversal has completed. The analytics data is generated in response to a query and is based on the values.

Abstract: Methods, non-transitory machine readable media, and computing devices that ensure correctness of file system analytics are disclosed. With this technology, a first generation number for a volume is incremented in response to a modification of a rule set that defines properties of objects of a file system associated with the volume. A determination is made when a second generation number in a first inode for a first one of the objects matches the first generation number. The first inode is identified based on a traversal of a directory tree associated with the file system. The modified rule set is applied to the properties for the first one of the objects to obtain values, when the second generation number fails to match the first generation number. Analytics data is output after the traversal has completed. The analytics data is generated in response to a query and is based on the values.

Abstract: Methods, non-transitory machine readable media, and computing devices that ensure correctness of file system analytics are disclosed. With this technology, a first generation number for a volume is incremented in response to a modification of a rule set that defines properties of objects of a file system associated with the volume. A determination is made when a second generation number in a first inode for a first one of the objects matches the first generation number. The first inode is identified based on a traversal of a directory tree associated with the file system. The modified rule set is applied to the properties for the first one of the objects to obtain values, when the second generation number fails to match the first generation number. Analytics data is output after the traversal has completed. The analytics data is generated in response to a query and is based on the values.