公开(公告)号：US20200136656A1

公开(公告)日：2020-04-30

申请号：US16170909

申请日：2018-10-25

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Russell Ian Monk ,  Mark Robert Watkins ,  Peter Thomas Camble

IPC: H03M13/29 ,  G06F11/10 ,  H03M13/15

Abstract: Examples are disclosed including generation of a first erasure coded data portion based on a first data portion of the data object, generation of a second erasure coded data portion based on a second data portion of the data object, formation of a first combined block by combining a first part of the first erasure coded data portion and a first part of the second erasure coded data portion, formation of a second combined block by combining a second part of the first erasure coded data portion and a second part of the second erasure coded data portion, storage of the first combined block in a first storage location, and storage of the second combined block in a second storage location.

公开(公告)号：US10673463B2

公开(公告)日：2020-06-02

申请号：US16170909

申请日：2018-10-25

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Russell Ian Monk ,  Mark Robert Watkins ,  Peter Thomas Camble

IPC: H03M13/00 ,  H03M13/29 ,  H03M13/15 ,  G06F11/10

Abstract: Examples are disclosed including generation of a first erasure coded data portion based on a first data portion of the data object, generation of a second erasure coded data portion based on a second data portion of the data object, formation of a first combined block by combining a first part of the first erasure coded data portion and a first part of the second erasure coded data portion, formation of a second combined block by combining a second part of the first erasure coded data portion and a second part of the second erasure coded data portion, storage of the first combined block in a first storage location, and storage of the second combined block in a second storage location.

公开(公告)号：US20180260281A1

公开(公告)日：2018-09-13

申请号：US15453042

申请日：2017-03-08

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Russell Ian Monk

IPC: G06F11/14 ,  G06F3/06

CPC classification number: G06F11/1448 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1471 ,  G06F12/00 ,  G06F12/0284 ,  G06F12/0292 ,  G06F12/0817 ,  G06F12/082 ,  G06F12/0824 ,  G06F12/0826 ,  G06F12/0828 ,  G06F2201/84

Abstract: Examples disclosed herein relate to restoration of a storage volume. In an example, a backup of a snapshot of a storage volume may be stored on a backup device. An allocation map for the snapshot may be stored in a data store on the backup device. The respective backups of additional snapshots of the storage volume may be stored on the backup device. For each additional snapshot, a difference map may be stored in the data store. In response to a request to restore the backup of the snapshot, a latest snapshot of the storage volume may be generated. A combined map may be generated based on the difference map for the latest snapshot and respective difference maps of the additional snapshots backed up on the backup device prior to the latest snapshot. The blocks that changed between the snapshot and the latest snapshot may be copied to storage device.