公开(公告)号：EP2583181A2

公开(公告)日：2013-04-24

申请号：EP11796172.2

申请日：2011-06-03

Applicant: Microsoft Corporation

Inventor： MILLER, Thomas J. ,  CARGILLE, Jonathan M. ,  TIPTON, William R. ,  VERMA, Surendra

IPC: G06F12/02

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0613 ,  G06F3/0644 ,  G06F3/0676 ,  G06F3/0689 ,  G06F17/30221

Abstract: Aspects of the subject matter described herein relate to storage allocation. In aspects, a hierarchical data structure is used to track allocation data for storage managed by a file system. The hierarchical data structure may have multiple levels with each level having data regarding a different granularity of storage. Portions of the hierarchical data structure may be locked independently of other portions of the hierarchical data structure. The hierarchical data structure may indicate that one or more portions of storage are for exclusive use by a directory. Extra space may be reserved in allocated space in anticipation of subsequent operations. Allocation requestors may obtain storage allocation from regions associated with different levels of the hierarchical data structure.

公开(公告)号：EP2510434A2

公开(公告)日：2012-10-17

申请号：EP10836396.1

申请日：2010-11-11

Applicant: Microsoft Corporation

Inventor： MILLER, Thomas J. ,  CARGILLE, Jonathan M. ,  TIPTON, William R. ,  VERMA, Surendra

IPC: G06F9/44 ,  G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0614 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0683 ,  G06F9/466

Abstract: Aspects of the subject matter described herein relate to maintaining consistency in a storage system. In aspects, one or more objects may be updated in the context of a transaction. In conjunction with updating the objects, logical copies of the objects may be obtained and modified. A request to write the updated logical copies is sent to a storage controller. The logical copies do not overwrite the original copies. In conjunction with sending the request, a data structure is provided for the storage controller to store on the disk. The data structure indicates the one or more objects that were supposed to be written to disk and may include verification data to indicate the content that was supposed to be written to disk. During recovery, this data structure may be used to determine whether all of the object(s) were correctly written to disk.

Abstract translation: 本文描述的主题的方面涉及维持存储系统的一致性。 在方面中，可以在事务的上下文中更新一个或多个对象。 结合更新对象，可以获得和修改对象的逻辑副本。 将写入更新的逻辑副本的请求发送到存储控制器。 逻辑副本不会覆盖原始副本。 结合发送请求，提供了存储控制器存储在磁盘上的数据结构。 数据结构指示应该写入磁盘的一个或多个对象，并且可以包括用于指示应写入磁盘的内容的验证数据。 在恢复期间，可以使用该数据结构来确定所有对象是否被正确写入磁盘。