公开(公告)号：US10394482B2

公开(公告)日：2019-08-27

申请号：US15099366

申请日：2016-04-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Douglas W. Dewey ,  Kenneth F. Day ,  Ian R. Davies

IPC: G06F12/00 ,  G06F3/06

Abstract: Systems and methods for replicating a snapshot of a volume are described. In one embodiment, a storage controller of a storage system may be operable to initialize a first replication process between a first storage volume of the first storage system and a second storage volume of a second storage system, copy content from a first system snapshot of the first storage volume to a second system snapshot of the first storage volume, and copy content from a first user snapshot of the first storage volume to the first system snapshot of the first storage volume. In some cases, a system snapshot is not accessible to a user and a user snapshot is accessible to the user. In some cases, at least one of the system snapshot and the user snapshot include a point in time capture of data on the first storage volume.

公开(公告)号：US10055149B2

公开(公告)日：2018-08-21

申请号：US15099434

申请日：2016-04-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Douglas W. Dewey ,  Ian R. Davies ,  Kenneth F. Day

IPC: G06F12/16 ,  G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0604 ,  G06F3/0623 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F11/1446

Abstract: Systems and methods for intelligent replication of a snapshot tree are described. In one embodiment, a first storage system may include a storage controller. In some embodiments, the storage controller may be operable to replicate a first storage volume of a first storage system and a first user snapshot of the first storage volume to a second storage volume of a second storage system and capture a first tree structure block (TSB) of the first storage system. In some cases, the first user snapshot may include a point in time capture of data on the first storage volume at a first time. In some embodiments, the first TSB captures a hierarchy of each snapshot of the first storage system.

公开(公告)号：US10409682B1

公开(公告)日：2019-09-10

申请号：US15441697

申请日：2017-02-24

Applicant: Seagate Technology LLC

Inventor： Ian Davies ,  Ruiling Luo ,  Thomas George Wicklund ,  Kenneth F. Day ,  Douglas William Dewey

IPC: G06F11/00 ,  G06F11/10

Abstract: The technology disclosed herein includes a method for dividing a body of user data into a plurality of data blocks, and writing the plurality of data blocks into chunk zones in parallel streams, the chunk zones located in a first ordered pool of storage devices. In some implementations, the method includes adding additional storage devices to the first ordered pool making a second ordered pool, including the first ordered pool, and writing the plurality of data blocks across the second ordered pool of storage devices, such that each of the storage devices including spare capacity. The method includes determining if a storage device fails, and seeking data for the data blocks on the failed storage device from of the other storage devices.

公开(公告)号：US20170300232A1

公开(公告)日：2017-10-19

申请号：US15099366

申请日：2016-04-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Douglas W. Dewey ,  Kenneth F. Day ,  Ian R. Davies

IPC: G06F3/06

CPC classification number: G06F3/065 ,  G06F3/0605 ,  G06F3/067

Abstract: Systems and methods for replicating a snapshot of a volume are described. In one embodiment, a storage controller of a storage system may be operable to initialize a first replication process between a first storage volume of the first storage system and a second storage volume of a second storage system, copy content from a first system snapshot of the first storage volume to a second system snapshot of the first storage volume, and copy content from a first user snapshot of the first storage volume to the first system snapshot of the first storage volume. In some cases, a system snapshot is not accessible to a user and a user snapshot is accessible to the user. In some cases, at least one of the system snapshot and the user snapshot include a point in time capture of data on the first storage volume.

公开(公告)号：US20170300247A1

公开(公告)日：2017-10-19

申请号：US15099434

申请日：2016-04-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Douglas W. Dewey ,  Ian R. Davies ,  Kenneth F. Day

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0604 ,  G06F3/0623 ,  G06F3/064 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F11/1446

Abstract: Systems and methods for intelligent replication of a snapshot tree are described. In one embodiment, a first storage system may include a storage controller. In some embodiments, the storage controller may be operable to replicate a first storage volume of a first storage system and a first user snapshot of the first storage volume to a second storage volume of a second storage system and capture a first tree structure block (TSB) of the first storage system. In some cases, the first user snapshot may include a point in time capture of data on the first storage volume at a first time. In some embodiments, the first TSB captures a hierarchy of each snapshot of the first storage system.