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公开(公告)号：WO0041093A9
公开(公告)日：2001-09-07
申请号：PCT/US9929499
申请日：1999-12-13
Applicant: EMC CORP
Inventor： OFEK YUVAL , CAKELJIC ZORAN , BITNER HAIM , GALTZUR SHARON , ISH-SHALOM ARIEL J , KEDEM NADAV , KRIKLER SAMUEL , ARNON DAN
CPC classification number: G06F11/1464 , G06F3/0601 , G06F11/1451 , G06F11/1456 , G06F11/1469 , G06F11/2056 , G06F2003/0697 , Y10S707/99953 , Y10S707/99955
Abstract: Method and apparatus are disclosed for a computer system including host computers and storage elements. The host computers may be configured into a host domain and the storage elements configured into a storage domain. The storage domain includes a plurality of primary storage devices and a secondary storage device. The secondary storage device may be coupled to a plurality of the primary storage devices through a network. In another embodiment, the secondary storage device may send and receive information from a heterogeneous set of host computers. In another embodiment, connections for transfer of data onto the secondary storage element are created automatically.
Abstract translation: 公开了一种包括主计算机和存储元件的计算机系统的方法和装置。 主计算机可以被配置成主机域，并且将存储元件配置到存储域中。 存储域包括多个主存储设备和辅助存储设备。 辅助存储设备可以通过网络耦合到多个主存储设备。 在另一个实施例中，辅助存储设备可以从异构的主机计算机集合发送和接收信息。 在另一个实施例中，自动地创建用于将数据传送到辅助存储元件上的连接。
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公开(公告)号：WO0013078A9
公开(公告)日：2000-10-12
申请号：PCT/US9918601
申请日：1999-08-16
Applicant: EMC CORP
Inventor： BACHMAT EITAN , OFEK YUVAL
CPC classification number: G06F3/061 , G06F3/0634 , G06F3/0653 , G06F3/0689 , G06F11/3433 , G06F11/3452 , G06F11/3485 , G06F2201/88 , G06F2201/885 , G11B17/22
Abstract: Load balancing of activities on physical disk storage devices is accomplished by monitoring reading and writing operations to blocks of contiguous storage locations on the physical disk storage devices. A list of exchangeable pairs of blocks is developed based on size and function. Statistics accumulated over an interval are then used to obtain access activity values for each block and each physical disk drive. A statistical analysis leads to a selection of one block pair. After testing to determine any adverse effect of making that change, the exchange is made to more evenly distribute the loading on individual physical disk storage devices.
Abstract translation: 物理磁盘存储设备上活动的负载平衡通过监视对物理磁盘存储设备上连续存储位置块的读写操作来完成。 根据尺寸和功能开发可交换块对列表。 然后使用一段时间内累积的统计信息来获取每个块和每个物理磁盘驱动器的访问活动值。 统计分析导致选择一个块对。 经过测试以确定进行此更改的任何不利影响后，交换机将更均匀地分配各个物理磁盘存储设备上的负载。
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公开(公告)号：WO0041093A2
公开(公告)日：2000-07-13
申请号：PCT/US9929499
申请日：1999-12-13
Applicant: EMC CORP
Inventor： OFEK YUVAL , CAKELJIC ZORAN , BITNER HAIM , GALTZUR SHARON , ISH-SHALOM ARIEL J , KEDEM NADAV , KRIKLER SAMUEL , ARNON DAN
CPC classification number: G06F11/1464 , G06F3/0601 , G06F11/1451 , G06F11/1456 , G06F11/1469 , G06F11/2056 , G06F2003/0697 , Y10S707/99953 , Y10S707/99955
Abstract: Method and apparatus are disclosed for a computer system including host computers and storage elements. The host computers may be configured into a host domain and the storage elements configured into a storage domain. The storage domain includes a plurality of primary storage devices and a secondary storage device. The secondary storage device may be coupled to a plurality of the primary storage devices through a network. In another embodiment, the secondary storage device may send and receive information from a heterogeneous set of host computers. In another embodiment, connections for transfer of data onto the secondary storage element are created automatically.
Abstract translation: 公开了一种包括主计算机和存储元件的计算机系统的方法和装置。 可以将主机计算机配置为主机域，并将存储元件配置到存储域中。 存储域包括多个主存储设备和辅助存储设备。 辅助存储设备可以通过网络耦合到多个主存储设备。 在另一个实施例中，辅助存储设备可以从异构的主机计算机组发送和接收信息。 在另一个实施例中，自动地创建用于将数据传送到辅助存储元件上的连接。
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公开(公告)号：JP2001175427A
公开(公告)日：2001-06-29
申请号：JP2000321950
申请日：2000-09-14
Applicant: EMC CORP
Inventor： BACHMAT EITHAN , OFEK YUVAL , LAM TAO KAI , DUBROVSKY VICTORIA , MICHEL RUBEN
Abstract: PROBLEM TO BE SOLVED: To generally realize a method for the titled method in the management of a data processing system, and especially to attain the method in the management of a disk array storage device. SOLUTION: The load averaging of activity on a physical disk storage device is achieved, by monitoring reading and writing for blocks at adjacent storage positions on the physical disk storage device. The list of a pair of exchangeable blocks is formed based on the size and function. Statistic stored across a certain intervals is used for obtaining an access activation value related with each block and each physical disk drive. The activity is expressed as a disk seek time, a wait time, and a data transfer time. A pair of blocks are selected by statistical analysis. Then, the exchange is conducted after test for certifying adverse effects generated due to the change is operated, and loads are further evenly distributed on each physical disk storage device.
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公开(公告)号：JP2001337869A
公开(公告)日：2001-12-07
申请号：JP2001099638
申请日：2001-03-30
Applicant: EMC CORP
Inventor： BLACK DAVID L , WHEELER RICHARD , THIBAULT ROBERT , MACARTHUR STEPHEN D , OFEK YUVAL
Abstract: PROBLEM TO BE SOLVED: To provide a data storage system having a redundant structure protecting the whole system from a failure in the event of failure in components. SOLUTION: Each of the first and second director boards has a plurality of first and second directors, input/output ports connecting to the first and second directors on the first and second director boards respectively, and cross bar switches having a pair of input/output ports. A cache memory is connected to a plurality of the first and second directors. A message network operates independently of a data transfer division. Controllers are connected to microprocessors and data pipes, controll message transmission between the message network and each of the second directors, and further controll data between input in each of the second directors and the cache memory.
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Patent Agency Ranking
公开(公告)号：JP2001325158A
公开(公告)日：2001-11-22
申请号：JP2001099611
申请日：2001-03-30
Applicant: EMC CORP
Inventor： OFEK YUVAL , BLACK DAVID L , MACARTHUR STEPHEN D , WHEELER RICHARD , THIBAULT ROBERT
Abstract: PROBLEM TO BE SOLVED: To provide a data storage system having redundant structure to protect the entire system from a fault in the case of the fault of components. SOLUTION: A system interface includes plural first directors, plural second directors, a data transfer part and a message network. The data transfer part includes a cache memory. The cache memory is coupled with the plural first and second directors. The message network is operated independently of the data transfer part and coupled with the plural first and second directors. The first and second directors control data transfer among the first and second directors in response to a message to pass the first and second directors through the message network and facilitate the data transfer among the first and second directors. The data passes the cache memory in the data transfer part.
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公开(公告)号：JP2006196011A
公开(公告)日：2006-07-27
申请号：JP2006028456
申请日：2006-02-06
Applicant: Emc Corp , イーエムシー コーポレイションEmc Corporation
Inventor： LAMBRIGHT DANIEL , OFER ADI , VISHLITZKY NATAN , OFEK YUVAL
IPC: G06F3/06 , G06F12/08 , G06F12/12 , G06F15/16 , G06F15/177
CPC classification number: G06F12/123 , G06F12/0866 , G06F2212/312
Abstract: PROBLEM TO BE SOLVED: To allow several host processors to receive better cache performance in comparison with other host processors.
SOLUTION: A method for storing data in a cache memory of a storage device includes a process for offering a first data structure to a first segment in the cache memory and a process for offering a second data structure to a second segment in the cache memory. Access to the first segment includes that to the first data structure, while access to the second segment includes that to the second data structure. The data structure can serve as a doubly linked ring list of a data block. An external host system in a different group is provided with different access, priority, and level of service with respect to the different segments of the cache.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：与其他主机处理器相比，允许多个主机处理器接收更好的缓存性能。 解决方案：用于将数据存储在存储设备的高速缓冲存储器中的方法包括向第一段提供第一数据结构的过程，以及用于向第二段提供第二数据结构的过程， 高速缓存存储器。 访问第一段包括对第一数据结构的访问，而对第二段的访问包括到第二数据结构的访问。 数据结构可以作为数据块的双向链接列表。 向不同组中的外部主机系统提供相对于高速缓存的不同段的不同访问，优先级和服务级别。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2001188707A
公开(公告)日：2001-07-10
申请号：JP2000330774
申请日：2000-10-30
Applicant: EMC CORP
Inventor： LAMBRIGHT DANIEL , OFER ADI , VISHLITZKY NATAN , OFEK YUVAL
IPC: G06F9/52 , G06F12/08 , G06F12/12 , G06F15/16 , G06F15/177
Abstract: PROBLEM TO BE SOLVED: To provide a host processor system connected with a storage device so that several host processors can receive more satisfactory performance than the other host processors. SOLUTION: This method comprises for offering a first mechanism capable of performing exclusive access to the first part of a cache memory and a process for offering a second mechanism capable of performing exclusive access to the second part of the cache memory, and the exclusive access to the first pat is made independent of the exclusive access to the second part. This method comprises a process for offering a first data structure to the first part of the cache memory and a process for offering a second data structure to the second part of the cache memory, and the access to the first part includes the access to the first data structure, and the access to the second part includes the access to the second structure. The data structure can be obtained as a ring list in which the blocks of the data are doubly linked, and it is possible to correspond to a tracks on a disk drive.
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公开(公告)号：DE69636330T2
公开(公告)日：2007-06-06
申请号：DE69636330
申请日：1996-08-29
Applicant: EMC CORP
Inventor： OFEK YUVAL , YANAI MOSHE
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公开(公告)号：DE69710578T2
公开(公告)日：2002-10-17
申请号：DE69710578
申请日：1997-05-29
Applicant: EMC CORP
Inventor： OFEK YUVAL
Abstract: A data network with data storage facilities for providing redundant data storage and for enabling concurrent access to the data for multiple purposes. A first data processing system with a first data facility stores a data base and processes transactions or other priority applications. A second data storage facility, that may be physically separated from the first data storage facility, mirrors the data in the first data storage facility. In a concurrent access operating mode, the second data storage facility makes the data available to an application concurrently with, but independently of, the operation of the other application. On completion of the concurrent operation, the second data storage facility can reconnect with and synchronizes with the first data storage facility thereby to reestablish the mirroring operation.
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