VIRTUAL ARRAY FAILOVER
    1.
    发明申请

    公开(公告)号:WO2007076386A3

    公开(公告)日:2008-07-31

    申请号:PCT/US2006062361

    申请日:2006-12-20

    Abstract: Failover is provided between groups of logical units of storage presented as virtual arrays. A primary virtual array has at least one primary virtual port coupled to a fabric, each primary virtual port having a source virtual port name and a source virtual port address. A secondary virtual array has one or more secondary virtual ports coupled to the fabric, each secondary virtual port having a secondary virtual port name and a virtual port address. All data resident on the primary virtual array is copied to the secondary virtual array. If a failure occurs in the primary virtual array, the secondary virtual port names and LUN names and numbers are replaced with the primary virtual port names and LUN names and numbers. The fabric updates its name server database so that the database associates the primary virtual port names and LUN names and numbers with the secondary virtual port addresses.

    Abstract translation: 在作为虚拟阵列呈现的逻辑存储单元组之间提供故障转移。 主虚拟阵列具有耦合到结构的至少一个主虚拟端口,每个主虚拟端口具有源虚拟端口名称和源虚拟端口地址。 辅助虚拟阵列具有耦合到该结构的一个或多个辅助虚拟端口,每个辅助虚拟端口具有辅助虚拟端口名称和虚拟端口地址。 驻留在主虚拟阵列上的所有数据都将复制到辅助虚拟阵列。 如果主虚拟阵列中发生故障,则辅助虚拟端口名称和LUN名称和数字将替换为主虚拟端口名称和LUN名称和数字。 Fabric更新其名称服务器数据库,以便数据库将主虚拟端口名称和LUN名称和数字与辅助虚拟端口地址相关联。

    PRESENTATION OF VIRTUAL ARRAYS USING N-PORT ID VIRTUALIZATION
    2.
    发明申请
    PRESENTATION OF VIRTUAL ARRAYS USING N-PORT ID VIRTUALIZATION 审中-公开
    使用N端口ID虚拟化的虚拟阵列的呈现

    公开(公告)号:WO2007076382A2

    公开(公告)日:2007-07-05

    申请号:PCT/US2006062353

    申请日:2006-12-20

    CPC classification number: G06F3/0637 G06F3/0605 G06F3/0689

    Abstract: A storage array presents virtual arrays to hosts through use of virtual port IDs. The storage array includes groups of logical units of storage. The groups are coupled to a switch through at least one physical port. Each group is assigned a unique virtual port ID for each physical port to which it is coupled. The virtual port IDs are assignable by the switch. The virtual port IDs are used by hosts coupled to the switch to exchange data with the groups to which the virtual port IDs are assigned. Further, a zoning table in the switch can associate each virtual port ID to a host facing port on the switch. In this case each host can communicate only with groups of logical units that are assigned virtual IDs associated with the host facing port to which it is coupled.

    Abstract translation: 存储阵列通过使用虚拟端口ID向主机呈现虚拟阵列。 存储阵列包括逻辑存储单元组。 这些组通过至少一个物理端口耦合到交换机。 为每个组分配与其耦合的每个物理端口唯一的虚拟端口ID。 虚拟端口ID可由交换机分配。 虚拟端口ID由耦合到交换机的主机用于与分配了虚拟端口ID的组交换数据。 此外,交换机中的分区表可以将每个虚拟端口ID与交换机上面向主机的端口相关联。 在这种情况下,每个主机只能与被分配与其所耦合的面向主机的端口相关联的虚拟ID的逻辑单元组通信。

    DATA STORAGE SYSTEM HAVNG A GLOBAL CACHE MEMORY DISTRIBUTED AMONG NON-VOLATILE MEMORIES WITHIN SYSTEM DISK DRIVES
    3.
    发明申请
    DATA STORAGE SYSTEM HAVNG A GLOBAL CACHE MEMORY DISTRIBUTED AMONG NON-VOLATILE MEMORIES WITHIN SYSTEM DISK DRIVES 审中-公开
    数据存储系统具有在系统盘驱动器内的非易失性存储器中分布的全球高速缓存存储器

    公开(公告)号:WO2008076205A2

    公开(公告)日:2008-06-26

    申请号:PCT/US2007024429

    申请日:2007-11-26

    Inventor: SADE GILAD OFER ADI

    Abstract: A data storage system having a host computer/server coupled through an interface to a bank of disk drives having a plurality of disk units, each one of such disk drive units having a magnetic storage media. The interface includes: a plurality of front-end directors; a plurality of back end directors; and, a global cache memory available for caching user data for the plurality of disk drives. The global cache memory comprises a plurality of non-volatile memory global cache memory sections distributed among disk drive units within the bank of disk drive units. The non-volatile memory global cache memory sections, connected to the back-end directors, caches user data for the magnetic storage media of the plurality of disk drive units independent of the one of the disk drive units having such one of the non-volatile memory global cache memory sections.

    Abstract translation: 一种数据存储系统,其具有通过与具有多个盘单元的一组磁盘驱动器的接口耦合的主计算机/服务器,每个这样的磁盘驱动器单元具有磁存储介质。 该界面包括:多个前端导向器; 多个后端董事; 以及可用于缓存多个磁盘驱动器的用户数据的全局高速缓冲存储器。 全局缓存存储器包括多个非易失性存储器全局高速缓冲存储器部分,其分布在磁盘驱动器单元组内的磁盘驱动器单元中。 连接到后端导向器的非易失性存储器全局高速缓冲存储器部分高速缓存多个磁盘驱动器单元中的磁存储介质的用户数据,独立于具有非易失性存储器之一的磁盘驱动器单元之一 内存全局缓存内存部分。

    Hierarchical method and device for identifying change in device characteristic
    4.
    发明专利
    Hierarchical method and device for identifying change in device characteristic 有权
    用于识别设备特性变化的分层方法和装置

    公开(公告)号:JP2006155662A

    公开(公告)日:2006-06-15

    申请号:JP2006052397

    申请日:2006-02-28

    Abstract: PROBLEM TO BE SOLVED: To automate a configuration changing process for an RDF (remote data mechanism) for allowing a host to modify a configuration of the RDF. SOLUTION: In a method for accessing mirrored data after reversing a communication path between a first volume on a first storage device and a mirrored second volume on a second storage device, access to the data is allowed in advance of synchronization of the mirrored data, access to data on the first volume is carried out if a default version of the mirrored data exists on the first volume, access to the mirrored data on the first volume and access to the mirrored data on the second volume is carried out if the default version exists on the second volume and is copied to the first volume from the second volume. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:使RDF(远程数据机制)的配置更改过程自动化,以允许主机修改RDF的配置。 解决方案:在用于在第一存储设备上的第一卷和第二存储设备上的镜像第二卷之间的通信路径反转之后访问镜像数据的方法中,允许对镜像的同步之前对数据的访问 如果第一个卷上存在默认版本的镜像数据,则会执行数据访问第一个卷上的数据,如果第一个卷上访问第一卷上的镜像数据并访问第二个卷上的镜像数据,则会执行 默认版本存在于第二个卷上,并从第二个卷复制到第一个卷。 版权所有(C)2006,JPO&NCIPI

    Virtual ordered writes
    6.
    发明专利

    公开(公告)号:GB2413670A

    公开(公告)日:2005-11-02

    申请号:GB0517063

    申请日:2004-02-06

    Applicant: EMC CORP

    Abstract: A primary storage device (24) orders a plurality of data writes by associating data writes begun after a first time and before a second time with a first chunk of data (52), associating data writes begun after the second time with a second chunk of data (54) different from the first chunk of data, and, after completion of all writes associated with the first chunk of data, initiating transfer of writes associated with the first chunk of data to a secondary storage device (26).

    Hierarchical method and device for identifying change of device characteristic
    7.
    发明专利
    Hierarchical method and device for identifying change of device characteristic 审中-公开
    用于识别设备特性变化的分层方法和装置

    公开(公告)号:JP2007334920A

    公开(公告)日:2007-12-27

    申请号:JP2007241406

    申请日:2007-09-18

    Abstract: PROBLEM TO BE SOLVED: To automate a changing process for constitution of an RDF (remote data mechanism) to correct the constitution of the RDF by a host. SOLUTION: Determination of a device characteristic includes a step for obtaining the first globally accessible value, a step for obtaining the first globally accessible value, a step for obtaining a device characteristic data from a relatively quick memory, when the first globally accessible value is met to the first stored value, a step for obtaining the second globally accessible value, when the first globally accessible value is not met to the first stored value, a step for obtaining the device characteristic data from the relatively quick memory, when the second globally accessible value is met to the second stored value, a step for obtaining the device characteristic data from a relatively slow memory, when the second globally accessible value is not met to the second stored value, to update the first and second values stored in the relatively quick memory. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了自动化RDF(远程数据机制)的构成的改变过程,以校正主机的RDF的结构。 解决方案:设备特性的确定包括用于获得第一全局可访问值的步骤,获得第一全局可访问值的步骤,当第一全局可访问性时获得设备特征数据的步骤 值满足第一存储值,当第一全局可访问值不满足第一存储值时,获得第二全局可访问值的步骤,用于从相对快速存储器获得设备特征数据的步骤,当 第二全局可访问值被满足于第二存储值,当第二全局可访问值不满足第二存储值时,从相对较慢的存储器获得设备特征数据的步骤,以更新存储在第二存储值中的第一和第二值 记忆比较快 版权所有(C)2008,JPO&INPIT

    SEGMENTATION OF CACHE FOR PROVIDING SERVICE LEVEL TO BE CHANGED

    公开(公告)号:JP2001222469A

    公开(公告)日:2001-08-17

    申请号:JP2000330866

    申请日:2000-10-30

    Applicant: EMC CORP

    Abstract: PROBLEM TO BE SOLVED: To provide a mechanism for controlling a cache service to be provided to a host processor system connected to a storage device so that some host processors can receive higher cache performance than other host processors. SOLUTION: The system is provided with a process for accessing a 1st segment of a cache memory for an external host system of a 1st group connected to a storage device and process for accessing a 2nd segment of the cache memory for an external host system of a 2nd group connected to the storage device. At least part of the 2nd segment of the cache memory is not part of the 1st segment of the cache memory. The system may also be provided with a process for providing 1st data structure to the 1st segment of the cache memory and a process for providing 2nd data structure to the 2nd segment of the cache memory. The access of the 1st segment includes the access of the 1st data structure and the access of the 2nd segment includes the access of the 2nd data structure.

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