公开(公告)号：US20220261320A1

公开(公告)日：2022-08-18

申请号：US17739353

申请日：2022-05-09

Applicant: NetApp Inc.

Inventor： Rakesh Bhargava M R ,  Krishna Murthy Chandraiah setty Narasingarayanapeta

IPC: G06F11/20 ,  G06F16/178 ,  G06F16/14 ,  G06F16/16 ,  G06F16/182 ,  G06F16/901

Abstract: Techniques are provided for replay of metadata and data operations. During initial execution of operations, identifiers of objects modified by the execution of each operation are identified and stored in association with the operations. When the operations are to be replayed (e.g., executed again, such as part of a replication operation or as part of flushing content from a cache to persistent storage), the identifiers are evaluated to determine which operations are independent with respect to one another and which operations are dependent with respect to one another. In this way, independent operations are executed in parallel and dependent operations are executed serially with respect to the operations from the dependent operations depend.

公开(公告)号：US20170316025A1

公开(公告)日：2017-11-02

申请号：US15140657

申请日：2016-04-28

Applicant: NetApp, Inc.

Inventor： Sisir Shekhar ,  Rakesh Bhargava M R ,  Krishna Murthy Chandraiah setty Narasingarayanapeta

IPC: G06F17/30

CPC classification number: G06F16/148 ,  G06F16/113 ,  G06F16/168

Abstract: A request is received to retrieve at least a portion of a file from a compressed data archived image stored in a backup storage device. The compressed data archived image comprises a backup of a file system having a number of directories and a number of files. The compressed data archived image comprises a file that includes a compression of the number of files. An address of the at least the portion of the file within the compressed data archived image is determined. The at least the portion of the file is retrieved at the address in the compressed data archived image, without decompressing the compressed data archived image.

公开(公告)号：US20170270008A1

公开(公告)日：2017-09-21

申请号：US15071282

申请日：2016-03-16

Applicant: NetApp Inc.

Inventor： Krishna Murthy Chandraiah setty Narasingarayanapeta ,  Vijay Srinath ,  Rakesh Bhargava M R

IPC: G06F11/14

Abstract: One or more techniques and/or computing devices are provided for restarting a dump backup. For example, a phase offset table is used to track a directory transfer phase offset and a file transfer phase offset of phases of a dump backup. An offset map is used to map inodes, of data being backed up, to offsets within a backup image within which the data is being backed up. The phase offset table and/or the offset map are evaluated using a bytes written value to identify a phase during which the dump backup aborted and to identify a restart point. Accordingly, the dump backup is restarted at the restart point. In this way, the dump backup may be restarted during any phase and/or at any point using the bytes written value, the phase offset table, and the offset map without the need for additional information such as a file history.