公开(公告)号：US20060129778A1

公开(公告)日：2006-06-15

申请号：US11008316

申请日：2004-12-09

申请人： Thomas Clark ,  Ramakrishna Dwivedula ,  Roger Raphael ,  Robert Rees

发明人： Thomas Clark ,  Ramakrishna Dwivedula ,  Roger Raphael ,  Robert Rees

IPC分类号： G06F12/00

CPC分类号： G06F3/0631 ,  G06F3/0613 ,  G06F3/067 ,  H04L67/1097

摘要： An apparatus, system, and method are disclosed for managing storage space allocation. The apparatus includes a recognizing module, a reserving module, and a managing module. The recognizing module recognizes a trigger event at a client of the data storage system. The reserving module reserves logical units of space for data storage. The management module manages the logical units of space at the client. Such an arrangement provides for distributed management of storage space allocation within a storage area network (SAN). Facilitating client management of the logical units of space in this manner may reduce the number of required metadata transactions between the client and a metadata server and may increase performance of the SAN file system. Reducing metadata transactions effectively lowers network overhead, while increasing data throughput.

摘要翻译： 公开了一种用于管理存储空间分配的装置，系统和方法。 该装置包括识别模块，预留模块和管理模块。 识别模块识别在数据存储系统的客户机处的触发事件。 预留模块保留数据存储空间的逻辑单位。 管理模块管理客户端的逻辑空间单位。 这种布置提供了对存储区域网络（SAN）内的存储空间分配的分布式管理。 以这种方式促进对逻辑空间的客户端管理可以减少客户端和元数据服务器之间所需的元数据事务的数量，并且可以提高SAN文件系统的性能。 减少元数据事务有效降低网络开销，同时提高数据吞吐量。

公开(公告)号：US20060136472A1

公开(公告)日：2006-06-22

申请号：US11017595

申请日：2004-12-20

申请人： Venkateswararao Jujjuri ,  Malahal Naineni ,  Rohit Prasad ,  Senthil Rajaram ,  Roger Raphael

发明人： Venkateswararao Jujjuri ,  Malahal Naineni ,  Rohit Prasad ,  Senthil Rajaram ,  Roger Raphael

IPC分类号： G06F17/00

CPC分类号： G06F17/30067 ,  Y10S707/99938 ,  Y10S707/99952

摘要： A method and system for supporting a concurrent recordation of a change in a data file by a server while allowing an application to continue writing changes to a data file. In response to a change in a data file, a near-instantaneous version of the file is created. Metadata reflecting the change to the data file are synchronized with a version of the file in cache and recorded in persistent storage. During the process of recording metadata changes to the file, subsequent changes to the data file may continue, and metadata reflecting the changes may be recorded in a subsequent near-instantaneous version of the file which may also be synchronized with a version of the metadata in persistent storage.

公开(公告)号：US07921423B2

公开(公告)日：2011-04-05

申请号：US11857890

申请日：2007-09-19

申请人： Lokesh M. Gupta ,  Roger Raphael

发明人： Lokesh M. Gupta ,  Roger Raphael

IPC分类号： G06F9/46 ,  G06F15/16 ,  G06F12/00

CPC分类号： G06F9/544 ,  G06F9/5027 ,  G06F2209/5018 ,  Y10S707/99938

摘要： A system and method for scheduling and coordinating tasks between a master application and a slave application includes: receiving a request from an application program; determining whether the request includes an embedded subtask; extracting the subtask and sending the subtask to a shared memory space for retrieval by the slave application, if the request includes an embedded subtask; and waiting for a response from the slave application.

摘要翻译： 用于调度和协调主应用和从应用之间的任务的系统和方法包括：从应用程序接收请求; 确定所述请求是否包括嵌入的子任务; 提取子任务并将子任务发送到共享存储器空间以供从属应用程序检索，如果请求包括嵌入的子任务; 并等待来自从应用程序的响应。

公开(公告)号：US07293270B1

公开(公告)日：2007-11-06

申请号：US10299232

申请日：2002-11-19

申请人： Lokesh Gupta ,  Roger Raphael

发明人： Lokesh Gupta ,  Roger Raphael

IPC分类号： G06F9/46 ,  G06F15/16 ,  G06F7/00 ,  G06F12/00

CPC分类号： G06F9/544 ,  G06F9/5027 ,  G06F2209/5018 ,  Y10S707/99938

摘要： A system and method for scheduling and coordinating tasks between a master application (102) and a slave application (104), the method comprises receiving a request from an application program; determining whether the request includes an embedded subtask; extracting the subtask and sending the subtask to a shared memory space (114) for retrieval by the slave application (104), if the request includes an embedded subtask; and waiting for a response from the slave application (104).

摘要翻译： 一种用于在主应用（102）和从应用（104）之间调度和协调任务的系统和方法，所述方法包括从应用程序接收请求; 确定所述请求是否包括嵌入的子任务; 提取所述子任务并将所述子任务发送到用于由所述从应用（104）检索的共享存储器空间（114），如果所述请求包括嵌入的子任务; 并等待来自从应用程序（104）的响应。

公开(公告)号：US20080010645A1

公开(公告)日：2008-01-10

申请号：US11857890

申请日：2007-09-19

申请人： Lokesh Gupta ,  Roger Raphael

发明人： Lokesh Gupta ,  Roger Raphael

IPC分类号： G06F9/46

CPC分类号： G06F9/544 ,  G06F9/5027 ,  G06F2209/5018 ,  Y10S707/99938

摘要： A system and method for scheduling and coordinating tasks between a master application and a slave application includes: receiving a request from an application program; determining whether the request includes an embedded subtask; extracting the subtask and sending the subtask to a shared memory space for retrieval by the slave application, if the request includes an embedded subtask; and waiting for a response from the slave application.

摘要翻译： 用于调度和协调主应用和从应用之间的任务的系统和方法包括：从应用程序接收请求; 确定所述请求是否包括嵌入的子任务; 提取子任务并将子任务发送到共享存储器空间以供从属应用程序检索，如果请求包括嵌入的子任务; 并等待来自从应用程序的响应。

公开(公告)号：US20070073828A1

公开(公告)日：2007-03-29

申请号：US11223174

申请日：2005-09-08

申请人： Sudhir Rao ,  Roger Raphael

发明人： Sudhir Rao ,  Roger Raphael

IPC分类号： G06F15/16

CPC分类号： H04L67/1097 ,  H04L69/324 ,  H04L69/40

摘要： An apparatus, system, and method are disclosed for link layer message transfer. The apparatus to facilitate link layer message transfer includes a queue module, a calculation module, and a transmit module. The queue module recognizes a transmission queue element associated with an outgoing transmission queue. The transmission queue element is directed from a source host to a target host. The calculation module calculates a target host address of a message array on a shared storage device. The shared storage device is coupled to the source and target hosts. The transmit module transmits a message from the source host to the target host address of the message array on the shared storage device.

摘要翻译： 公开了用于链路层消息传送的装置，系统和方法。 用于促进链路层消息传送的装置包括队列模块，计算模块和发射模块。 队列模块识别与输出传输队列相关联的传输队列元素。 传输队列元素从源主机引导到目标主机。 计算模块计算共享存储设备上消息数组的目标主机地址。 共享存储设备耦合到源和目标主机。 发送模块将消息从源主机发送到共享存储设备上的消息数组的目标主机地址。

公开(公告)号：US20060101083A1

公开(公告)日：2006-05-11

申请号：US10972160

申请日：2004-10-21

申请人： Kevin Cherkauer ,  Scott Lashley ,  Roger Raphael ,  Jason Young

发明人： Kevin Cherkauer ,  Scott Lashley ,  Roger Raphael ,  Jason Young

IPC分类号： G06F17/30

CPC分类号： G06F17/30312 ,  G06F11/3419 ,  G06F11/3452 ,  G06F17/30371 ,  G06F2201/80

摘要： A system for limiting the amount of time for a database server to perform a crash recovery process. A maximum recovery time for the database server to perform the crash recovery process is specified. An estimated recovery time for the crash recovery process that is less than the maximum recovery time is calculated, based on at least one of a deterministic analysis of cost accumulation during prior instances of the crash recovery process or an empirical analysis of cost accumulation during regular transaction processing in the database server. The crash recovery process is then conformed to the estimated recovery time.

摘要翻译： 用于限制数据库服务器执行崩溃恢复过程的时间量的系统。 指定数据库服务器执行崩溃恢复过程的最大恢复时间。 基于在崩溃恢复过程的先前实例期间的成本累积的确定性分析或在正常交易期间的成本累积的经验分析中的至少一个来计算小于最大恢复时间的崩溃恢复过程的估计恢复时间 在数据库服务器中进行处理。 然后，崩溃恢复过程符合估计的恢复时间。