Logical partitioning in redundant systems
    51.
    发明授权
    Logical partitioning in redundant systems 有权
    冗余系统中的逻辑分区

    公开(公告)号:US07653830B2

    公开(公告)日:2010-01-26

    申请号:US11622961

    申请日:2007-01-12

    IPC分类号: G06F11/00

    摘要: A plurality of processing nodes in a storage system are partitioned into a plurality of logical processing units, wherein the plurality of logical processing units can respond to I/O requests from a host coupled to the storage system. At least two logical processing units are grouped, wherein data in a first storage coupled to a first logical processing unit of the least two logical processing units is mirrored by data in a second storage coupled to the second logical processing unit of the at least two logical processing units. In response to a failure of the first logical processing unit, an I/O request from the host is responded to via the second logical processing unit.

    摘要翻译: 存储系统中的多个处理节点被划分为多个逻辑处理单元,其中多个逻辑处理单元可以响应来自耦合到存储系统的主机的I / O请求。 至少两个逻辑处理单元被分组,其中耦合到所述至少两个逻辑处理单元的第一逻辑处理单元的第一存储器中的数据被耦合到所述至少两个逻辑处理单元的第二逻辑处理单元的第二存储器中的数据镜像 处理单位。 响应于第一逻辑处理单元的故障,经由第二逻辑处理单元响应来自主机的I / O请求。

    APPARATUS, SYSTEM, AND METHOD FOR STORING AND RETRIEVING COMPRESSED DATA
    53.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR STORING AND RETRIEVING COMPRESSED DATA 失效
    用于存储和检索压缩数据的装置,系统和方法

    公开(公告)号:US20090177676A1

    公开(公告)日:2009-07-09

    申请号:US11969185

    申请日:2008-01-03

    IPC分类号: G06F7/00

    CPC分类号: G06F17/30067

    摘要: An apparatus, system, and method are disclosed for storing and retrieving compressed data. A compression module compresses a data file organized in logical tracks. A ratio module determines a track compression ratio. The track compression ratio is a ratio of an integer value n to one. A destage module destages a single directory entry for the data file to a directory. The directory entry points to a zeroth track on a hard disk drive. The destage module further destages the data file sequentially to tracks of the hard disk drive from the zeroth track with n logical tracks of the data file stored on one physical track of the hard disk drive. A stage module stages a kth logical track from a physical track of the hard disk drive. The physical track is specified by an integer value of k divided by n.

    摘要翻译: 公开了用于存储和检索压缩数据的装置,系统和方法。 压缩模块压缩组织在逻辑轨道中的数据文件。 比率模块确定轨道压缩比。 轨道压缩比是整数值n与1的比率。 一个目的地模块将数据文件的单个目录条目转发到目录。 目录条目指向硬盘驱动器上的第零个磁道。 目的地模块进一步使数据文件从数据文件的顺序轨道到第零轨道,其中存储在硬盘驱动器的一个物理轨道上的数据文件的n个逻辑磁道。 舞台模块从硬盘驱动器的物理轨道分级第k个逻辑磁道。 物理轨道由k除以n的整数值指定。

    SYSTEM AND ARTICLE OF MANUFACTURE FOR DUMPING DATA IN PROCESSING SYSTEMS TO A SHARED STORAGE
    54.
    发明申请
    SYSTEM AND ARTICLE OF MANUFACTURE FOR DUMPING DATA IN PROCESSING SYSTEMS TO A SHARED STORAGE 失效
    用于将处理系统中的数据转储到共享存储的系统和制品

    公开(公告)号:US20090119463A1

    公开(公告)日:2009-05-07

    申请号:US12349452

    申请日:2009-01-06

    IPC分类号: G06F12/00 G06F13/00

    CPC分类号: G06F11/1441

    摘要: Provided are a system and article of manufacture for dumping data in processing systems to a shared storage. A plurality of processing systems receive a signal indicating an event. Each of the processing systems write data used by the processing system to a shared storage device in response to receiving the signal, wherein each processing system writes the data to the shared storage device.

    摘要翻译: 提供了一种用于将处理系统中的数据倾倒到共享存储器的系统和制品。 多个处理系统接收指示事件的信号。 每个处理系统响应于接收到该信号而将处理系统使用的数据写入共享存储设备,其中每个处理系统将数据写入共享存储设备。

    Encryption of data in storage systems
    55.
    发明申请
    Encryption of data in storage systems 有权
    在存储系统中加密数据

    公开(公告)号:US20070256142A1

    公开(公告)日:2007-11-01

    申请号:US11406661

    申请日:2006-04-18

    IPC分类号: H04L9/32

    CPC分类号: G06F21/604 G06F2221/2107

    摘要: Provided are a method, system and article of manufacture, wherein a request to access data is received from a requestor. A determination is made as to whether the requestor is authorized to access the data. In response to determining that the requestor is authorized to access the data, a determination is made as to whether the data is encrypted. An encryption key is requested from the requester, in response to determining that the data is not encrypted.

    摘要翻译: 提供了一种方法,系统和制品,其中从请求者接收访问数据的请求。 确定请求者是否被授权访问数据。 响应于确定请求者被授权访问数据,确定数据是否被加密。 响应于确定数据未被加密,从请求者请求加密密钥。

    Preserving cache data against cluster reboot
    56.
    发明授权
    Preserving cache data against cluster reboot 有权
    保存缓存数据以防集群重新启动

    公开(公告)号:US07139933B2

    公开(公告)日:2006-11-21

    申请号:US10600030

    申请日:2003-06-20

    IPC分类号: G06F11/00

    摘要: A dual cluster storage server maintains track control blocks (TCBs) in a data structure to describe the data stored in cache in corresponding track images or segments. Following a cluster failure and reboot, the surviving cluster uses the TCBs to rebuild data structures such as a scatter table, which is a hash table that identifies a location of a track image, and a least recently used (LRU)/most recently used (MRU) list for the track images. This allows the cache data to be recovered. The TCBs describe whether the data in the track images is modified and valid, and describe forward and backward pointers for the data in the LRU/MRU lists. A separate non-volatile memory that is updated as the track images are updated is used to verify the integrity of the TCBs.

    摘要翻译: 双集群存储服务器维护数据结构中的轨道控制块(TCB)以描述存储在相应轨道图像或段中的高速缓存中的数据。 在集群故障和重新启动之后,幸存的集群使用TCB来重建数据结构,例如分散表,其是标识轨迹图像的位置的哈希表,以及最近最少使用的(LRU)/最近使用的 MRU)轨道图像列表。 这样可以恢复高速缓存数据。 TCB描述轨道图像中的数据是否被修改和有效,并描述LRU / MRU列表中的数据的前向和后向指针。 随着跟踪图像被更新而更新的单独的非易失性存储器用于验证TCB的完整性。

    Apparatus, system, and method for time sensitive copy
    58.
    发明申请
    Apparatus, system, and method for time sensitive copy 有权
    用于时间敏感拷贝的装置,系统和方法

    公开(公告)号:US20060107005A1

    公开(公告)日:2006-05-18

    申请号:US10991940

    申请日:2004-11-18

    IPC分类号: G06F12/16

    CPC分类号: G06F11/1441

    摘要: An apparatus, system, and method are disclosed for copying data from a volatile memory device to a plurality of persistent storage devices in response to a loss of primary power. The apparatus includes a section module, a stripe module, and a write module. The section module sections a data image of a write cache into a plurality of data blocks. The stripe module establishes a plurality of data stripes from the plurality of data blocks. The write module writes in parallel each of the plurality of data stripes to a corresponding plurality of unique, persistent data storage devices in response to a loss of line power to the write cache. Advantageously, the apparatus quickly copies the write data from the write cache to a persistent memory device in a relatively short period of time, decreasing the dependence on significant batteries to back up the volatile memory device.

    摘要翻译: 公开了一种装置,系统和方法,用于将数据从易失性存储器件复制到多个持久存储器件,以响应主电源的损失。 该装置包括部分模块,条带模块和写入模块。 部分模块将写入高速缓存的数据图像分割成多个数据块。 条带模块从多个数据块建立多个数据条带。 响应于对写入高速缓存的线路功率的损失,写入模块将多个数据条带中的每一条并行写入相应的多个唯一的持久数据存储设备。 有利地,该装置在相对短的时间段内将写入数据从写高速缓存快速复制到永久存储器件,减少了对有用电池的依赖以备份易失性存储器件。

    Apparatus and method to rebuild an NVS image using cache data
    59.
    发明申请
    Apparatus and method to rebuild an NVS image using cache data 有权
    使用高速缓存数据重建NVS图像的装置和方法

    公开(公告)号:US20050193242A1

    公开(公告)日:2005-09-01

    申请号:US10779206

    申请日:2004-02-13

    IPC分类号: G06F11/00

    CPC分类号: G06F11/2089 G06F11/1441

    摘要: A method to rebuild an NVS image is disclosed. The method provides information to a first cluster of an information storage and retrieval system, and writes that information to a non-volatile storage device disposed in a second cluster. Upon losing utility power to all or part of the information storage and retrieval system, the method provides back-up power to a processor and a data cache, and determines if the information written to the second non-volatile storage device is accessible. If the information written to the second non-volatile storage device is accessible, then the method copies the image of that second non-volatile storage device to an external storage device. If the information written to said second non-volatile storage device is not accessible, then the method creates a virtual NVS image using the information disposed in a local data cache, and copies that virtual NVS image to an external storage device.

    摘要翻译: 公开了重建NVS图像的方法。 该方法向信息存储和检索系统的第一集群提供信息,并将该信息写入设置在第二集群中的非易失性存储设备。 在向全部或部分信息存储和检索系统失去公用电力的情况下,该方法向处理器和数据高速缓存提供备用电力,并且确定写入第二非易失性存储设备的信息是否可访问。 如果写入第二非易失性存储设备的信息是可访问的,则该方法将该第二非易失性存储设备的映像复制到外部存储设备。 如果写入到第二非易失性存储设备的信息不可访问,则该方法使用设置在本地数据高速缓存中的信息创建虚拟NVS映像,并将该虚拟NVS映像复制到外部存储设备。