公开(公告)号：US09612920B2

公开(公告)日：2017-04-04

申请号：US13831771

申请日：2013-03-15

Applicant: Silicon Graphics International Corp.

Inventor： John Michael Sygulla ,  Arun Ramakrishnan ,  Greg Slowiak

IPC: G06F17/30 ,  G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1451 ,  G06F2201/84

Abstract: Data state rollover is performed based on data state snapshots and deltas. A series of snapshots is taken of the current data state, an original data state, and data states in between. Deltas are then generated between two sequential snapshots. This results in numerous deltas which represent the difference between consecutive snapshots. Once the deltas are acquired, the deltas may be stored along with the snapshot of the present data state. As such, previous data states may be rolled back to by determining the number of deltas to apply to the current data state to achieve the desired previous data state. In cases where the rollback or rollover fails, deltas may be played against the current data state to a point where the last known trusted and working data point existed.

公开(公告)号：US20140279919A1

公开(公告)日：2014-09-18

申请号：US13831771

申请日：2013-03-15

Applicant: Silicon Graphics International Corp.

Inventor： John Michael Sygulla ,  Arun Ramakrishnan ,  Greg Slowiak

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1451 ,  G06F2201/84

Abstract: Data state rollover is performed based on data state snapshots and deltas. A series of snapshots is taken of the current data state, an original data state, and data states in between. Deltas are then generated between two sequential snapshots. This results in numerous deltas which represent the difference between consecutive snapshots. Once the deltas are acquired, the deltas may be stored along with the snapshot of the present data state. As such, previous data states may be rolled back to by determining the number of deltas to apply to the current data state to achieve the desired previous data state. In cases where the rollback or rollover fails, deltas may be played against the current data state to a point where the last known trusted and working data point existed.

Abstract translation: 基于数据状态快照和三角形执行数据状态翻转。 拍摄当前数据状态，原始数据状态以及之间的数据状态的一系列快照。 然后在两个顺序快照之间生成Deltas。 这导致许多三角形表示连续快照之间的区别。 一旦获得了三角洲，三角形可以与当前数据状态的快照一起存储。 这样，先前的数据状态可以通过确定应用于当前数据状态以达到期望的先前数据状态的增量的数量来回滚。 在回滚或翻转失败的情况下，可能会对当前数据状态进行三角波，直到最后一个已知的可信和工作数据点存在。

公开(公告)号：US20170228296A1

公开(公告)日：2017-08-10

申请号：US15442458

申请日：2017-02-24

Applicant: SILICON GRAPHICS INTERNATIONAL CORP.

Inventor： John Michael Sygulla ,  Arun Ramakrishnan ,  Greg Slowiak

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F11/1451 ,  G06F2201/84

Abstract: Data state rollover is performed based on data state snapshots and deltas. A series of snapshots is taken of the current data state, an original data state, and data states in between. Deltas are then generated between two sequential snapshots. This results in numerous deltas which represent the difference between consecutive snapshots. Once the deltas are acquired, the deltas may be stored along with the snapshot of the present data state. As such, previous data states may be rolled back to by determining the number of deltas to apply to the current data state to achieve the desired previous data state. In cases where the rollback or rollover fails, deltas may be played against the current data state to a point where the last known trusted and working data point existed.