公开(公告)号：WO2007127360A2

公开(公告)日：2007-11-08

申请号：PCT/US2007/010222

申请日：2007-04-26

Applicant: NETWORK APPLIANCE, INC. ,  ZHENG, Ling ,  STAGER, Roger ,  JOHNSTON, Craig ,  TRIMMER, Don ,  FRANDZEL, Yuval

Inventor： ZHENG, Ling ,  STAGER, Roger ,  JOHNSTON, Craig ,  TRIMMER, Don ,  FRANDZEL, Yuval

CPC classification number: H03M7/00 ,  H04N19/20 ,  H04N19/23 ,  H04N19/25

Abstract: A technique for eliminating duplicate data is provided. Upon receipt of a new data set, one or more anchor points are identified within the data set. A bit-by-bit data comparison is then performed of the region surrounding the anchor point in the received data set with the region surrounding an anchor point stored within a pattern database to identify forward/backward delta values. The duplicate data identified by the anchor point, forward and backward delta values is then replaced in the received data set with a storage indicator.

Abstract translation: 提供了一种消除重复数据的技术。 在接收到新的数据集之后，在数据集内识别一个或多个锚点。 然后，在包含存储在模式数据库内的锚定点周围的区域的接收数据集中围绕定位点的区域执行逐位数据比较，以识别前向/后向增量值。 由锚点，前向和后向增量值标识的重复数据随后用存储指示器在接收的数据集中替换。

公开(公告)号：EP2143023A1

公开(公告)日：2010-01-13

申请号：EP08726988.2

申请日：2008-03-19

Applicant: Network Appliance, Inc.

Inventor： JARDETZKY, Paul ,  KLEIMAN, Steven R. ,  STAGER, Roger ,  TRIMMER, Don ,  ZHENG, ling ,  FRANDZEL, Yuval

IPC: G06F17/30 ,  H04L29/08

CPC classification number: G06F17/30067

Abstract: According to one or more embodiments of the present invention, a network cache intercepts data requested by a client from a remote server interconnected with the cache through one or more wide area network (WAN) links (e.g., for Wide Area File Services, or 'WAFS'). The network cache stores the data and sends the data to the client. The cache may then intercept a first write request for the data from the client to the remote server, and determine one or more portions of the data in the write request that changed from the data stored at the cache (e.g., according to one or more hashes created based on the data). The network cache then sends a second write request for only the changed portions of the data to the remote server.

公开(公告)号：EP2013973A2

公开(公告)日：2009-01-14

申请号：EP07794387.6

申请日：2007-04-26

Applicant: NETWORK APPLIANCE, INC.

Inventor： ZHENG, Ling ,  STAGER, Roger ,  JOHNSTON, Craig ,  TRIMMER, Don ,  FRANDZEL, Yuval

IPC: H03M7/00

CPC classification number: H03M7/00 ,  H04N19/20 ,  H04N19/23 ,  H04N19/25

Abstract: A technique for eliminating duplicate data is provided. Upon receipt of a new data set, one or more anchor points are identified within the data set. A bit-by-bit data comparison is then performed of the region surrounding the anchor point in the received data set with the region surrounding an anchor point stored within a pattern database to identify forward/backward delta values. The duplicate data identified by the anchor point, forward and backward delta values is then replaced in the received data set with a storage indicator.