公开(公告)号：WO2012036938A3

公开(公告)日：2012-03-22

申请号：PCT/US2011/050573

申请日：2011-09-06

Applicant: MICROSOFT CORPORATION

Inventor： KRUSE, David Matthew ,  GEORGE, Mathew ,  HAVEWALA, Sarosh Cyrus ,  ALLRED, Christian Gregory ,  CHRISTIANSEN, Neal Robert

IPC: G06F15/16 ,  G06F9/06

Abstract: Described are embodiments for allowing clients that access a distributed file system to locally cache directory metadata. The client may request a read lease which allows the client to cache the directory metadata locally and service requests received from the same application which originally requested the directory metadata using the cache. In addition, the client may also request a handle lease which allows a client to delay the closing of a directory handle and allow the handle to be reused to service subsequent directory metadata requests from the same or a different application. A client may also request a write lease which allows an application on the client to modify the directory metadata, such as by creating or deleting new files in the directory, or changing their attributes, and cache those changes.

公开(公告)号：WO2014159383A3

公开(公告)日：2014-10-02

申请号：PCT/US2014/023315

申请日：2014-03-11

Applicant: MICROSOFT CORPORATION

Inventor： CHRISTIANSEN, Neal Robert ,  CHAN, Daniel ,  DAS, Rajsekhar ,  PANG, Juan-Lee ,  SMITH, Malcolm James ,  HERRON, Andrew

IPC: G06F3/06 ,  G06F17/30

Abstract: A file system that operates on an underlying volume that has multiple tiers, each tier including a particular trait set. Upon creating or otherwise identifying a file system namespace (such as a directory or file) that is in a volume or that is to be included within the volume, a storage trait set to be applied corresponding to the file system namespace is identified. Then, the storage trait set is compared against the trait sets for the multiple tiers to identify a tier into which to store the file system namespace. The file system namespace is then caused to be stored within the identified tier. Thus, the file system is provided with a volume that has multiple tiers (each having different trait sets) to choose from in storing files.

公开(公告)号：WO2008021080A1

公开(公告)日：2008-02-21

申请号：PCT/US2007/017532

申请日：2007-08-07

Applicant: MICROSOFT CORPORATION

Inventor： CHRISTIANSEN, Neal Robert ,  RAMANATHAN, Venkataraman ,  DOSHI, Apurva Ashwin

IPC: G06F15/16 ,  G06F9/44

CPC classification number: G06F13/385 ,  G06F9/544 ,  G06F9/545 ,  G06F2209/542

Abstract: A host computing device has multiple instantiated copies of a legacy application. Each copy may issue a data request to access data at an absolute location common to all of the copies. To respond to the data request from a particular copy, it is determined that the absolute location of the data request has a redirection device specifying an alternate location, and the data request is dishonored. A unique location is determined from the alternate location and a unique ID of the particular copy of the legacy application, and the data request is re-issued to access the data at the unique location. Data requests from different copies of the legacy application are thus directed to different unique locations.

Abstract translation: 主机计算设备具有传统应用程序的多个实例化副本。 每个副本可以发出数据请求，以访问所有副本共同的绝对位置的数据。 为了响应来自特定副本的数据请求，确定数据请求的绝对位置具有指定备用位置的重定向设备，并且数据请求不兑现。 从备用位置确定唯一位置，并确定遗留应用程序的特定副本的唯一ID，并重新发出数据请求以访问唯一位置的数据。 因此，传统应用程序的不同副本的数据请求被引导到不同的唯一位置。

公开(公告)号：EP2616950A2

公开(公告)日：2013-07-24

申请号：EP11825689.0

申请日：2011-09-06

Applicant: Microsoft Corporation

Inventor： KRUSE, David Matthew ,  GEORGE, Mathew ,  HAVEWALA, Sarosh Cyrus ,  ALLRED, Christian Gregory ,  CHRISTIANSEN, Neal Robert

IPC: G06F15/16 ,  G06F9/06

Abstract: Described are embodiments for allowing clients that access a distributed file system to locally cache directory metadata. The client may request a read lease which allows the client to cache the directory metadata locally and service requests received from the same application which originally requested the directory metadata using the cache. In addition, the client may also request a handle lease which allows a client to delay the closing of a directory handle and allow the handle to be reused to service subsequent directory metadata requests from the same or a different application. A client may also request a write lease which allows an application on the client to modify the directory metadata, such as by creating or deleting new files in the directory, or changing their attributes, and cache those changes.