公开(公告)号：US11048425B2

公开(公告)日：2021-06-29

申请号：US16557400

申请日：2019-08-30

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Naveen Kumar Selvarajan ,  Sijesh T. Balakrishnan ,  Arun Krishna Pillai

IPC: G06F3/06 ,  H04L9/06 ,  G06F11/14

Abstract: In some examples, data integrity verification may include obtaining, from an application for which data is stored in a primary storage volume, an identification of data blocks of the primary storage volume that are stored for the application in a snapshot storage volume that represents a snapshot of data stored in the primary storage volume. The identification may include references to locations of the data blocks in the primary storage volume. Using physical extent mappings and volume block addressing, the identified locations of the data blocks in the primary storage volume may be translated to locations of snapshot storage volume blocks of the snapshot storage volume. Based on the snapshot storage volume blocks that are read from the snapshot storage volume, integrity of corresponding backup copy blocks stored in a backup copy for backup of the primary storage volume may be verified.

公开(公告)号：US11269517B2

公开(公告)日：2022-03-08

申请号：US16857300

申请日：2020-04-24

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Aswin Jayaraman ,  Sijesh Thondapilly Balakrishnan ,  Sankar Ramasamy ,  Naveen Kumar Selvarajan

IPC: G06F3/06

Abstract: Example implementations relate to determining a storage utilization attributable to object data stored in deduplicated form. The storage utilization attributable to the object data may be determined from an amount of object data not shared with other objects of the deduplication store and a portion of an amount of object data shared with other objects of the deduplication store. It is determined whether the storage utilization results in exceeding a storage threshold of a storage tier to which the object data is assigned. Where the storage utilization is determined to exceed the storage threshold, the object data may be reassigned to a different storage tier, or data of another object may be removed from the storage tier.

公开(公告)号：US20200341650A1

公开(公告)日：2020-10-29

申请号：US16857300

申请日：2020-04-24

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Aswin Jayaraman ,  Sijesh Thondapilly Balakrishnan ,  Sankar Ramasamy ,  Naveen Kumar Selvarajan

IPC: G06F3/06

Abstract: Example implementations relate to determining a storage utilization attributable to object data stored in deduplicated form. The storage utilization attributable to the object data may be determined from an amount of object data not shared with other objects of the deduplication store and a portion of an amount of object data shared with other objects of the deduplication store. It is determined whether the storage utilization results in exceeding a storage threshold of a storage tier to which the object data is assigned. Where the storage utilization is determined to exceed the storage threshold, the object data may be reassigned to a different storage tier, or data of another object may be removed from the storage tier.

公开(公告)号：US20180004609A1

公开(公告)日：2018-01-04

申请号：US15547414

申请日：2015-11-05

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Naveen Kumar Selvarajan

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1451 ,  G06F11/1461 ,  G06F2201/815

Abstract: Some examples described herein relate to data restoration. In an example, checkpoints may be defined for converting backup data stored in each of Logical Unit Numbers (LUNs) of a storage system into respective virtual data disk files. Backup data stored in each of the LUNs of the storage system may be converted into respective virtual data disk files at the defined checkpoints. The virtual data disk files with user configuration information of the storage system may be packaged into a Virtual Storage Appliance (VSA), which may include a base operating system (OS) image of the VSA. The VSA may be transferred to an external entity.