公开(公告)号：US20050091353A1

公开(公告)日：2005-04-28

申请号：US10676433

申请日：2003-09-30

申请人： Sandeep Gopisetty ,  Prasenjit Sarkar ,  Chung-Hao Tan

发明人： Sandeep Gopisetty ,  Prasenjit Sarkar ,  Chung-Hao Tan

IPC分类号： G06F15/16 ,  G06F15/173 ,  H04L29/06 ,  H04L29/08

CPC分类号： H04L63/104 ,  H04L67/1097 ,  H04L69/329

摘要： According to the present invention, there is provided a system to provide autonomically zoning of storage area networks based on system administrator defined policies. This will allow system administrators to manage the storage area network zones from a single window of control and also remove the responsibility of managing switch ports to the underlying autonomic more, the system administrator can specify policies that can changes with the growth of the storage network infrastructure. The system includes an autonomic zoning management module to autonomically generate zoning plans pertaining to network, according to a combination of each device in the network's connectivity information and user generated policies.

摘要翻译： 根据本发明，提供了一种基于系统管理员定义的策略来提供存储区域网络的自主分区的系统。 这将允许系统管理员从一个单一的控制窗口管理存储区域网络区域，并且更多地将管理交换机端口的责任移交给基础自治系统，系统管理员可以指定随着存储网络基础设施的增长而可能发生变化的策略 。 该系统包括自动分区管理模块，用于根据网络的连接信息中的每个设备和用户生成的策略的组合自动生成与网络有关的分区计划。

公开(公告)号：US06516380B2

公开(公告)日：2003-02-04

申请号：US09776982

申请日：2001-02-05

申请人： Deepak R. Kenchammana-Hoskote ,  Prasenjit Sarkar

发明人： Deepak R. Kenchammana-Hoskote ,  Prasenjit Sarkar

IPC分类号： G06F1200

CPC分类号： G06F12/0804 ,  G06F12/0866

摘要： A computer-implemented method and system for accelerating writes to a storage controller by performing log-based sequential write caching of data to be written on a storage device. The data in the log is moved to the storage array later when the system is less active. As a result, random writes are converted to sequential writes. Overall, performance improves since the performance of sequential writes far exceeds that of random writes. A write command containing data is received in a data storage controller, wherein the data storage controller includes a write cache having a sequential log. The data storage controller also includes an index structure indicating the location of data in the sequential log. If the data does not already exist on the log, the data is written to the log contained in the write cache at a location recorded in the index structure. If the data already exists on the log as indicated by the index structure, the data on the index structure is invalidated and the new data is written on the log at an available location determined by the index structure. When an idle period exists, data in the log from a plurality of write commands is transferred to the data storage medium.

公开(公告)号：US06415296B1

公开(公告)日：2002-07-02

申请号：US09282715

申请日：1999-03-31

申请人： David Carroll Challener ,  Shah Mohammed Rezaul Islam ,  Vikram Harakere Krishnamurthy ,  Philip Anthony Richardson ,  Prasenjit Sarkar

发明人： David Carroll Challener ,  Shah Mohammed Rezaul Islam ,  Vikram Harakere Krishnamurthy ,  Philip Anthony Richardson ,  Prasenjit Sarkar

IPC分类号： G06F1730

CPC分类号： G06F3/0689 ,  G06F3/0613 ,  G06F3/0617 ,  G06F3/065 ,  Y10S707/99953

摘要： The present invention provides a method and system for more efficiently providing a copy of a portion of a source drive of a plurality of drives in a redundant array of inexpensive disks (RAID) data storage system. The portion of the source drive includes a plurality of segments. The method and system include providing the copy of the plurality of segments from the source drive to the target drive. The plurality of segments can be modified during the step of providing the copy. The method and system further include providing another copy of a portion of the plurality of segments that have been modified since the step of providing the copy commenced if a portion of the plurality of segments have been modified since copying commenced.

摘要翻译： 本发明提供了一种方法和系统，用于在廉价磁盘（RAID）数据存储系统的冗余阵列中更有效地提供多个驱动器的源驱动器的一部分的副本。 源驱动器的部分包括多个段。 该方法和系统包括将多个段的副本从源驱动器提供给目标驱动器。 可以在提供副本的步骤期间修改多个段。 该方法和系统还包括提供已经被修改的多个段的一部分的另一副本，因为如果从复制开始多个段的一部分已被修改，则提供复制开始的步骤。