公开(公告)号：WO2010114777A2

公开(公告)日：2010-10-07

申请号：PCT/US2010/028957

申请日：2010-03-26

Applicant: MICROSOFT CORPORATION

Inventor： MURPHY, Elissa E. ,  MEHR, John D. ,  VIRK, Navjot ,  SOSNOSKY, Lara M. ,  HAMILTON, James R.

IPC: G06F9/44 ,  G06F15/16

CPC classification number: G06F11/1446 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1458 ,  G06F11/1464 ,  G06F11/1469 ,  G06F2201/83

Abstract: Provided herein are systems and methodologies for highly efficient restoration in a network-based backup system. As described herein, differential-based analysis can be utilized such that a new complete differential is calculated based on signatures and/or other information relating to a given item to be restored prior to retrieving backup data. Based on the differential, only blocks determined to be unique between the current version of the item and the desired version are transmitted, which can then be merged with non-unique locally present blocks to obtain the fully restored version of the item. Further, a hybrid architecture can be employed, wherein signatures and/or data are stored at a global location within a network as well as one or more local peers. Accordingly, a backup client can obtain information necessary for restoration from either the global location or a nearby peer, further reducing latency and bandwidth consumption.

Abstract translation: 这里提供了用于在基于网络的备份系统中高效恢复的系统和方法。 如本文所述，可以利用基于差分的分析，使得基于在检索备份数据之前将要恢复的给定项目的签名和/或其他信息来计算新的完整差分。 基于差分，仅发送在当前版本的项目和期望版本之间确定为唯一的块，然后可以将其与非唯一本地存在的块合并，以获得项目的完全恢复版本。 此外，可以采用混合架构，其中签名和/或数据被存储在网络内的全局位置以及一个或多个本地对等体。 因此，备份客户端可以从全球位置或附近对等体获得恢复所需的信息，进一步减少等待时间和带宽消耗。

公开(公告)号：WO2007024376A2

公开(公告)日：2007-03-01

申请号：PCT/US2006/028346

申请日：2006-07-20

Applicant: MICROSOFT CORPORATION

Inventor： GERBER, Robert H. ,  RAMAN, Balan S. ,  HAMILTON, James R. ,  LUDEMAN, John F. ,  KRISHNA, Murali M. ,  SMITH, Samuel H. ,  ASHWIN, Shrinivas

IPC: G06F7/00

CPC classification number: G06F17/30362 ,  G06F11/2094 ,  G06F11/2097 ,  G06F2201/80

Abstract: Mechanisms and techniques for database fragment cloning and management are provided. A database object, such as a table or index, is divided into fragments. Each fragment is cloned to create cloned fragments, which operationally are identical to one another. One or more of the cloned fragments may be designated as a primary cloned fragment for performing database operations or as a secondary cloned fragment for serving as backup. Updates to each fragment are implemented on the primary cloned fragment and then propagated from the primary cloned fragment to the corresponding secondary cloned fragments. A cloned fragment can go offline; unavailable to be updated. When the cloned fragment returns online, it is refreshed with data included in the primary cloned fragment. While being refreshed, the cloned fragment may be updated. The cloned fragment is eligible to be designated as a primary cloned fragment when the refreshing process has been completed.

Abstract translation: 提供了数据库片段克隆和管理的机制和技术。 数据库对象（如表或索引）被划分为片段。 克隆每个片段以产生克隆的片段，其在操作上彼此相同。 一个或多个克隆的片段可以被指定为用于执行数据库操作的主要克隆片段或作为备份的辅助克隆片段。 对每个片段的更新在主要克隆片段上实现，然后从主要克隆片段扩增到相应的次级克隆片段。 克隆片段可以脱机; 无法更新。 当克隆的片段返回在线时，它将使用包含在主要克隆片段中的数据进行刷新。 刷新时，可以更新克隆的片段。 当刷新过程完成时，克隆片段有资格被指定为主要的克隆片段。

公开(公告)号：EP1915668A2

公开(公告)日：2008-04-30

申请号：EP06800192.4

申请日：2006-07-20

Applicant: Microsoft Corporation

Inventor： GERBER, Robert H. ,  RAMAN, Balan S. ,  HAMILTON, James R. ,  LUDEMAN, John F. ,  KRISHNA, Murali M. ,  SMITH, Samuel H. ,  ASHWIN, Shrinivas

IPC: G06F7/00

CPC classification number: G06F17/30362 ,  G06F11/2094 ,  G06F11/2097 ,  G06F2201/80

Abstract: Mechanisms and techniques for database fragment cloning and management are provided. A database object, such as a table, rowset or index, is divided into fragments. Each fragment is cloned to create cloned fragments, which operationally are substantially identical to one another. One or more of the cloned fragments may be designated as a primary cloned fragment for performing database operations or as a secondary cloned fragment for serving as backup. Updates to each fragment are implemented on the primary cloned fragment and are then propagated from the primary cloned fragment to the corresponding secondary cloned fragments. A cloned fragment can go offline, becoming unavailable to be updated. When the cloned fragment returns online, the cloned fragment is refreshed with data included in the primary cloned fragment. While being refreshed, the cloned fragment may continue to be updated. The cloned fragment is eligible to be designated as a primary cloned fragment when the refreshing process has been completed.

公开(公告)号：EP2414933A2

公开(公告)日：2012-02-08

申请号：EP10759248.7

申请日：2010-03-26

Applicant: Microsoft Corporation

Inventor： MURPHY, Elissa E. ,  MEHR, John D. ,  VIRK, Navjot ,  SOSNOSKY, Lara M. ,  HAMILTON, James R.

IPC: G06F9/44 ,  G06F15/16

CPC classification number: G06F11/1446 ,  G06F11/1448 ,  G06F11/1451 ,  G06F11/1453 ,  G06F11/1458 ,  G06F11/1464 ,  G06F11/1469 ,  G06F2201/83

Abstract: Provided herein are systems and methodologies for highly efficient restoration in a network-based backup system. As described herein, differential-based analysis can be utilized such that a new complete differential is calculated based on signatures and/or other information relating to a given item to be restored prior to retrieving backup data. Based on the differential, only blocks determined to be unique between the current version of the item and the desired version are transmitted, which can then be merged with non-unique locally present blocks to obtain the fully restored version of the item. Further, a hybrid architecture can be employed, wherein signatures and/or data are stored at a global location within a network as well as one or more local peers. Accordingly, a backup client can obtain information necessary for restoration from either the global location or a nearby peer, further reducing latency and bandwidth consumption.