公开(公告)号：US10055154B2

公开(公告)日：2018-08-21

申请号：US15808713

申请日：2017-11-09

Applicant: NetApp, Inc.

Inventor： Ajith Balachandran ,  James Namboorikandathil Joseph ,  Michael R Eisler ,  Rahul Pradeep ,  Somesh Kumar ,  Vijay Srinath ,  Yuedong Mu

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/14 ,  G06F11/00

CPC classification number: G06F3/0619 ,  G06F3/0644 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/00 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1469 ,  G06F2201/84

Abstract: Techniques and components for backing up data are disclosed. A first subset of data units is selected from a plurality of data units of a storage system to create a first partial baseline for backup of the first storage system. The number of data units in the first subset of data units is determined based on a window size parameter n. Data within the storage system that has changed since a previous backup operation are identified. A first backup including the first partial baseline and the first changed data is written to a second storage system. For a data loss event, the techniques include selecting, based on a time of the determined data loss event in combination with n, the first backup and n−1 additional backups, wherein each of the n−1 additional backups include a partial baseline and changed data. The first backup and the n−1 additional backups are written to a third storage system.

公开(公告)号：US09836230B2

公开(公告)日：2017-12-05

申请号：US14688418

申请日：2015-04-16

Applicant: NetApp, Inc.

Inventor： Ajith Balachandran ,  James Namboorikandathil Joseph ,  Michael R Eisler ,  Rahul Pradeep ,  Somesh Kumar ,  Vijay Srinath ,  Yuedong Mu

IPC: G06F12/00 ,  G06F3/06 ,  G06F11/14

CPC classification number: G06F3/0619 ,  G06F3/0644 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/00 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1458

Abstract: First partial baseline data of a first storage system is identified. First changed data of the first storage system is identified. The first changed data comprises data that has changed since a previous point in time. First backup data is written to a second storage system. The first backup data comprises the first partial baseline data and the first changed data. After writing the first backup data to the second storage system, second partial baseline data of the first storage system is identified. The second partial baseline data does not include the first partial baseline data. Second changed data of the first storage system is identified. The second changed data comprises data that has changed since writing the first backup data. Second backup data is written to the second storage system. The second backup data comprises the second partial baseline data and the second changed data.

公开(公告)号：US20160306573A1

公开(公告)日：2016-10-20

申请号：US14688418

申请日：2015-04-16

Applicant: NetApp, INC.

Inventor： Ajith Balachandran ,  James Namboorikandathil Joseph ,  Michael R Eisler ,  Rahul Pradeep ,  Somesh Kumar ,  Vijay Srinath ,  Yuedong Mu

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0644 ,  G06F3/065 ,  G06F3/0683 ,  G06F11/00 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1458

Abstract: First partial baseline data of a first storage system is identified. First changed data of the first storage system is identified. The first changed data comprises data that has changed since a previous point in time. First backup data is written to a second storage system. The first backup data comprises the first partial baseline data and the first changed data. After writing the first backup data to the second storage system, second partial baseline data of the first storage system is identified. The second partial baseline data does not include the first partial baseline data. Second changed data of the first storage system is identified. The second changed data comprises data that has changed since writing the first backup data. Second backup data is written to the second storage system. The second backup data comprises the second partial baseline data and the second changed data.

Abstract translation: 识别第一存储系统的第一部分基线数据。 识别第一个存储系统的第一个更改的数据。 第一个更改的数据包括自上一个时间点以来已更改的数据。 第一个备份数据被写入第二个存储系统。 第一备份数据包括第一部分基线数据和第一改变的数据。 在将第一备份数据写入第二存储系统之后，识别第一存储系统的第二部分基准数据。 第二部分基线数据不包括第一部分基线数据。 识别第一个存储系统的第二个更改的数据。 第二改变的数据包括自编写第一备份数据以来已经改变的数据。 第二个备份数据被写入第二个存储系统。 第二备份数据包括第二部分基线数据和第二改变数据。