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21. 发明授权

US6035375A Cache memory with an allocable micro-cache 失效
标题翻译：使用可分配的微缓存缓存内存
公开(公告)号：US6035375A
公开(公告)日：2000-03-07
申请号：US683579
申请日：1996-07-15
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G06F12/08 , G06F12/12
CPC分类号： G06F12/121 , G06F12/0862 , G06F12/123 , G06F12/0866 , G06F2212/502 , G06F2212/6026 , Y10S427/104
摘要： A cache management system and method monitors and controls the contents of cache memory coupled to at least one host and at least one data storage device. A cache indexer maintains a current index of data elements which are stored in cache memory. A sequential data access indicator, responsive to the cache index and to a user selectable sequential data access threshold, determines that a sequential data access is in progress for a given process and provides an indication of the same. The system and method allocate a micro-cache memory to any process performing a sequential data access. In response to the indication of a sequential data access in progress and to a user selectable maximum number of data elements to be prefetched, a data retrieval requestor requests retrieval of up to the selected maximum number of data elements from a data storage device. A user selectable number of sequential data elements determines when previously used micro-cache memory locations will be overwritten. A method of dynamically monitoring and adjusting cache management parameters is also presented.
摘要翻译：缓存管理系统和方法监视和控制耦合到至少一个主机和至少一个数据存储设备的高速缓冲存储器的内容。缓存索引器维护存储在高速缓存中的数据元素的当前索引。响应于高速缓存索引和用户可选择的顺序数据访问阈值的顺序数据访问指示器确定针对给定进程的顺序数据访问正在进行并且提供其指示。该系统和方法为执行顺序数据访问的任何进程分配一个微型缓存。响应于正在进行的顺序数据访问的指示和用户可选择的最大数量的要被预取的数据元素，数据检索请求者请求从数据存储设备检索多达所选择的最大数量的数据元素。用户可选数量的顺序数据元素确定先前使用的微高速缓冲存储器位置将被覆盖。还提出了一种动态监控和调整缓存管理参数的方法。

22. 发明授权

US5909692A System and method for disk mapping and data retrieval 失效
标题翻译：磁盘映射和数据检索的系统和方法
公开(公告)号：US5909692A
公开(公告)日：1999-06-01
申请号：US851701
申请日：1997-05-06
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G06F12/16 , G06F3/06 , G06F11/14 , G06F11/20 , G06F12/00 , G06F13/00 , G11B20/12 , H04L29/06 , G06F12/08
CPC分类号： G06F11/2071 , G06F11/2066 , G06F11/2074 , G06F11/2079 , G06F11/2082 , G06F3/0601 , G06F3/0608 , G06F3/061 , G06F3/0619 , G06F3/064 , G06F3/065 , G06F3/0661 , G06F3/0689 , H04L29/06 , H04L67/1095 , H04L69/40 , G06F2003/0697 , G11B20/1217 , H04L69/26 , Y10S707/99942
摘要： An apparatus and method for disk mapping and data retrieval includes a data storage medium on which has been stored a plurality of data records. Each record includes at least a record identification portion, for uniquely identifying each record from among the plurality of data records. The apparatus builds a record locator table in high speed semiconductor memory which comprises the unique record identifiers for the records on the storage medium as well as a record locator index generated by the apparatus, which indicates the address of the data record on the storage medium. Data retrieval is facilitated by first searching the record locator table in high speed semiconductor memory for a requested data record. Utilizing the record locator index associated with the reqested data record, the system directly accesses the requested data record on the storage medium thereby minimizing storage medium search time. Also disclosed is an apparatus and method for converting CKD formatted data records to FBA formatted disk drives and for building and compressing the "count" portion of the CKD data formatted record into a record locator table.
摘要翻译：用于盘映射和数据检索的装置和方法包括其上已经存储有多个数据记录的数据存储介质。每个记录至少包括记录识别部分，用于从多个数据记录中唯一地识别每个记录。该设备在高速半导体存储器中构建记录定位器表，其包括用于存储介质上的记录的唯一记录标识符以及由设备生成的记录定位符索引，其指示存储介质上的数据记录的地址。通过首先在高速半导体存储器中搜索用于所请求的数据记录的记录定位器表，便于数据检索。利用与重新排列的数据记录相关联的记录定位符索引，系统直接访问存储介质上的所请求的数据记录，从而最小化存储介质搜索时间。还公开了一种用于将CKD格式化数据记录转换为FBA格式的磁盘驱动器并用于将CKD数据格式化记录的“计数”部分建立并压缩到记录定位器表中的装置和方法。

23. 发明授权

US5537568A System for dynamically controlling cache manager maintaining cache index and controlling sequential data access 失效
标题翻译：用于动态控制缓存管理器维护高速缓存索引和控制顺序数据访问的系统
公开(公告)号：US5537568A
公开(公告)日：1996-07-16
申请号：US354489
申请日：1994-12-12
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G06F12/08 , G06F12/12
CPC分类号： G06F12/121 , G06F12/0862 , G06F12/123 , G06F12/0866 , G06F2212/502 , G06F2212/6026 , Y10S427/104
摘要： A cache management system and method monitors and controls the contents of cache memory coupled to at least one host and at least one data storage device. A cache indexer maintains a current index of data elements which are stored in cache memory. A sequential data access indicator, responsive to the cache index and to a user selectable sequential data access threshold, determines that a sequential data access is in progress for a given process and provides an indication of the same. The system and method allocate a micro-cache memory to any process performing a sequential data access. In response to the indication of a sequential data access in progress and to a user selectable maximum number of data elements to be prefetched, a data retrieval requestor requests retrieval of up to the selected maximum number of data elements from a data storage device. A user selectable number of sequential data elements determines when previously used micro-cache memory locations will be overwritten. A method of dynamically monitoring and adjusting cache management parameters is also presented.
摘要翻译：缓存管理系统和方法监视和控制耦合到至少一个主机和至少一个数据存储设备的高速缓冲存储器的内容。缓存索引器维护存储在高速缓存中的数据元素的当前索引。响应于高速缓存索引和用户可选择的顺序数据访问阈值的顺序数据访问指示器确定针对给定进程的顺序数据访问正在进行并且提供其指示。该系统和方法为执行顺序数据访问的任何进程分配一个微型缓存。响应于正在进行的顺序数据访问的指示和用户可选择的最大数量的要被预取的数据元素，数据检索请求者请求从数据存储设备检索多达所选择的最大数量的数据元素。用户可选数量的顺序数据元素确定先前使用的微高速缓冲存储器位置将被覆盖。还提出了一种动态监控和调整缓存管理参数的方法。

24. 发明授权

US5390313A Data storage system with data mirroring and reduced access time data retrieval 失效
标题翻译：数据存储系统具有数据镜像和减少访问时间数据检索
公开(公告)号：US5390313A
公开(公告)日：1995-02-14
申请号：US587026
申请日：1990-09-24
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G11B20/18 , G11C29/00 , G11B15/46 , G06F11/00 , G11B5/012
CPC分类号： G11C29/74 , G11B20/1803
摘要： A data storage system with data mirroring and reduced access time data retrieval includes at least one pair of rotating data storage media each having a plurality of generally identical data records. Each rotating data storage medium includes position indicators, for providing one or more indications of the rotational position of each of the rotating data storage media with respect to its associated fixed position read/write mechanism. A position monitor receives the rotational position indications from each rotating data storage medium and computes and monitors the rotational position of each rotating storage medium with respect to its associated read/write mechanism. After receiving a request for access to one or more data records stored on the pair of rotating data storage media, the system computes projected data access times for retrieving the requested data record on each of the rotating data storage media, and commands retrieval of the requested data record to the rotating data storage medium having the shortest projected data access time based on the rotational position and state of the respective data storage medium.
摘要翻译：具有数据镜像和减少的访问时间数据检索的数据存储系统包括至少一对旋转数据存储介质，每个旋转数据存储介质具有多个大致相同的数据记录。每个旋转数据存储介质包括位置指示器，用于相对于其相关联的固定位置读/写机构提供每个旋转数据存储介质的旋转位置的一个或多个指示。位置监视器从每个旋转数据存储介质接收旋转位置指示，并计算和监视每个旋转存储介质相对于其相关联的读/写机构的旋转位置。在接收到存储在一对旋转数据存储介质上的一个或多个数据记录的请求之后，系统计算用于在每个旋转数据存储介质上检索所请求的数据记录的投影数据访问时间，并且命令检索所请求的数据记录到基于相应数据存储介质的旋转位置和状态的具有最短投影数据存取时间的旋转数据存储介质。

25. 发明授权

US5269011A Dynamically reconfigurable data storage system with storage system controllers selectively operable as channel adapters on storage device adapters 失效
标题翻译：动态可重构数据存储系统，存储系统控制器可选择性地用作通道适配器或存储设备适配器
公开(公告)号：US5269011A
公开(公告)日：1993-12-07
申请号：US587247
申请日：1990-09-24
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G06F15/17 , G11B20/12 , G06F13/00
CPC分类号： G06F15/17
摘要： A dynamically reconfigurable data storage system includes a plurality of storage system controllers, each of which is selectively operable at any given time as one of a channel adapter and a storage device adapter as established by commands received by each of the controllers. At least one semiconductor memory is coupled to the storage system controllers. Additionally, a data storage system director issues commands to each of the storage system controllers for establishing a first quantity of the system controllers as channel adapters, for transmitting and receiving at least data and commands to and from one or more host computers over a plurality of data communication channels. The data storage system director also establishes a second quantity of the storage system controllers as storage device adapters, for cotrolling data transfer to and from a plurality of data storage devices.
摘要翻译：动态可重新配置的数据存储系统包括多个存储系统控制器，每个存储系统控制器可以在任何给定的时间选择性地操作，作为由每个控制器接收的命令建立的通道适配器和存储设备适配器之一。至少一个半导体存储器耦合到存储系统控制器。另外，数据存储系统指导者向每个存储系统控制器发出命令，以建立第一数量的系统控制器作为通道适配器，用于至少向多个主机计算机发送和接收来自一个或多个主机的数据和命令，数据通讯渠道数据存储系统总监还建立第二数量的存储系统控制器作为存储设备适配器，用于将数据传输到多个数据存储设备和从多个数据存储设备进行数据传输。

26. 发明授权

US5206939A System and method for disk mapping and data retrieval 失效
标题翻译：磁盘映射和数据检索的系统和方法
公开(公告)号：US5206939A
公开(公告)日：1993-04-27
申请号：US586796
申请日：1990-09-24
申请人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
发明人： Moshe Yanai , Natan Vishlitzky , Bruno Alterescu , Daniel Castel
IPC分类号： G06F3/06 , G11B20/12
CPC分类号： G06F3/0601 , G06F2003/0697 , G11B20/1217
摘要： An apparatus and method for disk mapping and data retrieval includes a data storage medium on which has been stored a plurality of data records. Each record includes at least a record identification portion, for uniquely identifying each record from among the plurality of data records. The apparatus builds a record locator table and high speed semiconductor memory which comprises the unique record identifiers for the records on the storage medium as well as a record locator index generated by the apparatus, which indicates the address of the data record on the storage medium. Data retrieval is facilitated by first searching the record locator table in high speed semiconductor memory for a requested data record. Utilizing the record locator index associated with the reqested data record, the system directly accesses the requested data record on the storage medium thereby minimizing storage medium search time. Also disclosed is an apparatus and method for converting CKD formatted data records to FBA formatted disk drives and for building and compressing the "count" portion of the CKD data formatted record into a record locator table.
摘要翻译：用于盘映射和数据检索的装置和方法包括其上已经存储有多个数据记录的数据存储介质。每个记录至少包括记录识别部分，用于从多个数据记录中唯一地识别每个记录。该装置构建记录定位器表和高速半导体存储器，其包括用于存储介质上的记录的唯一记录标识符以及由设备生成的记录定位符索引，其指示存储介质上的数据记录的地址。通过首先在高速半导体存储器中搜索用于所请求的数据记录的记录定位器表，便于数据检索。利用与重新排列的数据记录相关联的记录定位符索引，系统直接访问存储介质上的所请求的数据记录，从而最小化存储介质搜索时间。还公开了一种用于将CKD格式化数据记录转换为FBA格式的磁盘驱动器并用于将CKD数据格式化记录的“计数”部分建立并压缩到记录定位器表中的装置和方法。

27. 发明授权

US06173306B2 Dynamic load balancing 失效
标题翻译：动态负载均衡
公开(公告)号：US06173306B2
公开(公告)日：2001-01-09
申请号：US08505089
申请日：1995-07-21
申请人： Yoav Raz , Natan Vishlitzky , Bruno Alterescu
发明人： Yoav Raz , Natan Vishlitzky , Bruno Alterescu
IPC分类号： G06F945
CPC分类号： G06F9/5083 , G06F13/4256
摘要： A method of controlling distribution of processing in a system that includes a plurality of host data processors connected to a data storage system which includes a digital storage that is partitioned into a plurality of volumes. The method includes assigning ownership of the volumes to the host processors such that each of the host processors owns a different subset of the plurality of volumes, wherein a host processor is prohibited from sending I/O requests to any of the volumes which it does not own. The method further includes monitoring the I/O requests that are sent to each of the volumes by each of the host processors; from information obtained through monitoring, generating workload statistics indicative of the distribution of workload among the host processors; detecting a workload imbalance in the workload statistics; and in response to detecting a workload imbalance, reassigning ownership of the volumes to the host processors so as to change the distribution of workload among the host processors.
摘要翻译：一种控制系统中处理分配的方法，该系统包括连接到数据存储系统的多个主机数据处理器，该数据存储系统包括被划分成多个卷的数字存储器。该方法包括将主体处理器的所有权分配给这些主处理器，使得每个主处理器拥有多个卷的不同子集，其中主处理器被禁止向其中的任何卷发送I / O请求拥有。该方法还包括监视每个主处理器发送到每个卷的I / O请求; 从通过监视获得的信息中，生成指示主处理器之间的工作负荷分布的工作量统计信息; 检测工作量统计中的工作量不平衡; 并且响应于检测到工作负载不平衡，将所述卷的所有权重新分配给主处理器，以便改变主处理器之间的工作负载分布。

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