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11. 发明授权

US06658542B2 Method and system for caching data in a storage system 失效
标题翻译：存储系统中缓存数据的方法和系统
公开(公告)号：US06658542B2
公开(公告)日：2003-12-02
申请号：US10293508
申请日：2002-11-13
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Robert Louis Morton , Kenneth Wayne Todd
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Robert Louis Morton , Kenneth Wayne Todd
IPC分类号： G06F1202
CPC分类号： G06F11/073 , G06F11/004 , G06F11/0724 , G06F11/0727 , G06F11/0793 , G06F12/0804 , G06F12/0866 , G06F2212/312
摘要： Disclosed is a system and method for caching data. A processor receives data from a host to modify a track in a first storage device. The processor stores a copy of the modified data in a cache and indicates in a second storage device the tracks for which there is modified data in cache. During data recovery operations, the processor processes the second storage device and data therein to determine the tracks for which there was modified data in cache. The processor then marks the determined tracks as failed to prevent data at the determined tracks in the first storage device from being returned in response to a read request until the failure is resolved. In further embodiments, in response to detecting a partial failure within the storage system, the processor would scan the cache to determine tracks for which there is modified data stored in the cache. The processor then stores in the second storage device information indicating the tracks having modified data in cache and schedules the destaging of the modified data from the cache to the first storage device. The processor is further capable of receiving and processing read/write requests directed to the first storage device before all the modified data is destaged from cache.
摘要翻译：公开了一种用于缓存数据的系统和方法。处理器从主机接收数据以修改第一存储设备中的轨道。处理器将修改的数据的副本存储在高速缓存中，并且在第二存储设备中指示在高速缓存中有修改数据的轨道。在数据恢复操作期间，处理器处理第二存储设备及其中的数据以确定高速缓存中已修改数据的轨道。然后，处理器将确定的轨道标记为失败，以防止响应于读取请求而返回第一存储设备中确定的轨道上的数据，直到故障被解决为止。在另外的实施例中，响应于检测存储系统中的部分故障，处理器将扫描高速缓存以确定存储在高速缓存中的修改数据的轨道。然后，处理器在第二存储设备中存储指示在高速缓存中具有修改数据的轨道的信息，并且将修改后的数据从高速缓存调度到第一存储设备。在所有修改的数据从缓存中移出之前，处理器还能够接收和处理指向第一存储设备的读/写请求。

12. 发明授权

US06327644B1 Method and system for managing data in cache 失效
标题翻译：用于管理缓存中的数据的方法和系统
公开(公告)号：US06327644B1
公开(公告)日：2001-12-04
申请号：US09135842
申请日：1998-08-18
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Mark A. Reid
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Mark A. Reid
IPC分类号： G06F1208
CPC分类号： G06F12/123
摘要： Disclosed is a system for managing data in cache. A list of data entries in a first memory area has a first end and a second end, such as a most recently used (MRU) end and least recently used (LRU) end. A first pointer addresses a data entry in the list and a second pointer addresses another data entry in the list that is not at the first and second ends. Data from a second memory area is provided to add to the list. A determination is made as to whether the provided data to add to the list is one of a first type and second type of data, such as sequentially accessed data or non-sequentially accessed data. The provided data is stored in the first memory area as a new data entry in the list. The first pointer is modified to address the new data entry after determining that the provided data is of the first type. After determining that the provided data is of the second type, the second pointer is processed to determine where to add the new data entry to the list between the first and second ends.
摘要翻译：公开了一种用于管理缓存中的数据的系统。第一存储器区域中的数据条目的列表具有第一端和第二端，诸如最近使用（MRU）端和最近最少使用（LRU）端。第一个指针寻址列表中的数据条目，第二个指针寻址列表中不在第一和第二端的另一个数据条目。来自第二存储器区域的数据被提供以添加到列表中。确定添加到列表中的所提供的数据是否是第一类型和第二类型的数据之一，诸如顺序访问的数据或非顺序访问的数据。所提供的数据作为列表中的新数据条目存储在第一存储器区域中。在确定所提供的数据是第一类型之后，修改第一个指针以解决新的数据条目。在确定所提供的数据是第二类型之后，处理第二指针以确定在第一和第二端之间将新数据条目添加到列表的哪里。

13. 发明授权

US6035347A Secure store implementation on common platform storage subsystem (CPSS) by storing write data in non-volatile buffer 失效
标题翻译：通过将写入数据存储在非易失性缓冲区中，在通用平台存储子系统（CPSS）上实现安全存储
公开(公告)号：US6035347A
公开(公告)日：2000-03-07
申请号：US994312
申请日：1997-12-19
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Forrest Lee Wade
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Forrest Lee Wade
IPC分类号： G06F11/14 , C06F11/10
CPC分类号： G06F11/1441
摘要： A data storage system and method for securely storing data includes (a) a host CPU; (b) a non-volatile storage (NVS) memory for storing data; (c) a processor, the processor being coupled to the host CPU and the NVS memory and monitoring availability of space in the NVS memory and in a non-volatile buffer (NV-Buffer); and (d) the NV-Buffer, the NV-Buffer being coupled to the host CPU, the NVS memory, and the processor, upon receiving a request to write data into the NVS memory, the host CPU storing data to be transferred to the NVS memory into the NV-Buffer, and upon receiving a confirmation message that data of a write operation to the NV-Buffer is committed, the NV-Buffer transferring the data to the NVS memory. The NVS memory includes a fast dump space for storing data transferred from the NV-Buffer when a main power is down and for restoring back data from the NVS memory to the NV-Buffer when the power is up. The NV-Buffer is a fast drain buffer and is equipped with a backup power source sufficient to hold up a power needed to transfer the data when the power is down.
摘要翻译：用于安全地存储数据的数据存储系统和方法包括：（a）主机CPU; （b）用于存储数据的非易失性存储（NVS）存储器; （c）处理器，所述处理器耦合到所述主机CPU和所述NVS存储器并且监视所述NVS存储器和非易失性缓冲器（NV缓冲器）中的空间的可用性; 和（d）NV缓冲器，NV缓冲器在接收到将数据写入NVS存储器的请求时，耦合到主机CPU，NVS存储器和处理器，主机CPU存储要传送到 NVS存储器进入NV-Buffer，并且在接收到对NV-Buffer的写入操作的数据提交的确认消息时，NV-Buffer将数据传送到NVS存储器。 NVS存储器包括快速转储空间，用于在主电源关闭时存储从NV-Buffer传输的数据，并在电源关闭时将数据从NVS存储器恢复到NV缓冲区。 NV-Buffer是一个快速漏极缓冲器，并配有备用电源，足以在掉电时保持传输数据所需的电力。

14. 发明授权

US5721898A Method and system for data search in a data processing system 失效
标题翻译：数据处理系统中数据搜索的方法和系统
公开(公告)号：US5721898A
公开(公告)日：1998-02-24
申请号：US939241
申请日：1992-09-02
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Lawrence Carter Blount , Susan Kay Candelaria , Joseph Smith Hyde
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Lawrence Carter Blount , Susan Kay Candelaria , Joseph Smith Hyde
IPC分类号： G06F3/06 , G06F13/12 , G06F12/02
CPC分类号： G06F3/0601 , G06F2003/0697 , Y10S707/99933
摘要： A method and system for enhancing the efficiency of communication between one or more host computers and a storage system controller during a data search within either the associated storage systems or within the storage system controller itself. A storage system controller, coupled to one or more host computers via multiple communication channels, is utilized to control access to one or more direct access storage devices. A host computer authorizes the storage system controller to search within a range of data locations within the storage system, sets an initial location from which the data search will begin, and specifies a key field argument to search for. The host computer then permits the storage system controller to independently search the authorized range of data locations within the storage system or within cache memory within the storage system controller. The storage system controller examines multiple records within the authorized range of data locations to locate a desired record associated with the key field argument and presents a status report to the host computer only after the desired record is located or the entire range of data is searched and the desired record was not located. Allowing the storage system controller to independently search records and report status only after completion of an attempt to find a desired record within an authorized range of records minimizes communication overhead. Reducing the number of status reports presented over the communication channel enhances communication efficiency.
摘要翻译：一种用于在关联的存储系统内或存储系统控制器本身内的数据搜索期间增强一个或多个主计算机与存储系统控制器之间的通信效率的方法和系统。利用经由多个通信信道耦合到一个或多个主计算机的存储系统控制器来控制对一个或多个直接存取存储设备的访问。主计算机授权存储系统控制器在存储系统内的数据位置范围内搜索，设置数据搜索开始的初始位置，并指定要搜索的关键字段参数。然后，主计算机允许存储系统控制器独立地搜索存储系统内的数据位置的授权范围或存储系统控制器内的高速缓冲存储器内。存储系统控制器检查数据位置的授权范围内的多个记录，以定位与密钥字段参数相关联的期望记录，并且仅在找到所需记录或搜索整个数据范围之后才向主计算机呈现状态报告，没有找到所需的记录。只有在完成尝试在授权的记录范围内找到所需记录之后，才允许存储系统控制器独立地搜索记录和报告状态，从而最大限度地减少通信开销。通过通信渠道减少状态报告的数量增加了通信效率。

15. 发明授权

US06981102B2 Method and system for managing meta data 有权
标题翻译：用于管理元数据的方法和系统
公开(公告)号：US06981102B2
公开(公告)日：2005-12-27
申请号：US10269507
申请日：2002-10-11
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Kenneth Wayne Todd
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Kenneth Wayne Todd
IPC分类号： G06F3/06 , G06F12/08 , G06F12/06
CPC分类号： G06F12/0866 , G06F2212/312 , Y10S707/99953
摘要： Disclosed is a method, system, and article of manufacture for managing meta data. The meta data provides information on data maintained in a storage device. The system receives a request for meta data from a process and determines whether the requested meta data is in cache. After determining that the requested meta data is not in cache, the system determines whether there are a sufficient number of allocatable segments in cache to stage in the meta data and allocates segments in cache to store the meta data after determining that there are enough allocatable segments in cache. The system stages the requested meta data into the allocated segments. Alternatively, after determining that the requested meta data is in cache, the system determines whether a second process has exclusive access to the meta data in cache. After determining that the second process does not have exclusive access, the system indicates to the first process that access to the meta data is permitted. Otherwise, after determining that the second process has exclusive access, the system notifies the first process that access to the meta data track will be provided at a later time when the second process relinquishes exclusive access.
摘要翻译：公开了用于管理元数据的方法，系统和制品。元数据提供关于在存储设备中维护的数据的信息。系统从进程接收对元数据的请求，并确定所请求的元数据是否在高速缓存中。在确定所请求的元数据不在高速缓存中之后，系统确定缓存中是否有足够数量的可分配段在元数据中分级，并且在确定有足够的可分配段之后分配高速缓存中的段来存储元数据在缓存中。系统将请求的元数据分配到分配的段中。或者，在确定所请求的元数据在高速缓存中之后，系统确定第二进程是否具有对高速缓存中的元数据的独占访问。在确定第二进程没有独占访问之后，系统向第一进程指示允许对元数据的访问。否则，在确定第二进程具有独占访问权限之后，系统通知第一进程将在稍后的第二进程放弃独占访问时提供对元数据轨道的访问。

16. 发明授权

US06513097B1 Method and system for maintaining information about modified data in cache in a storage system for use during a system failure 失效
标题翻译：用于在系统故障期间使用的用于维护存储系统中的高速缓存中的修改数据的信息的方法和系统
公开(公告)号：US06513097B1
公开(公告)日：2003-01-28
申请号：US09261898
申请日：1999-03-03
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Robert Louis Morton , Kenneth Wayne Todd
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Robert Louis Morton , Kenneth Wayne Todd
IPC分类号： G06F1200
CPC分类号： G06F11/073 , G06F11/004 , G06F11/0724 , G06F11/0727 , G06F11/0793 , G06F12/0804 , G06F12/0866 , G06F2212/312
摘要： Disclosed is a system and method for caching data. A processor receives data from a host to modify a track in a first storage device. The processor stores a copy of the modified data in a cache and indicates in a second storage device the tracks for which there is modified data in cache. During data recovery operations, the processor processes the second storage device and data therein to determine the tracks for which there was modified data in cache. The processor then marks the determined tracks as failed to prevent data at the determined tracks in the first storage device from being returned in response to a read request until the failure is resolved. In further embodiments, in response to detecting a partial failure within the storage system, the processor would scan the cache to determine tracks for which there is modified data stored in the cache. The processor then stores in the second storage device information indicating the tracks having modified data in cache and schedules the destaging of the modified data from the cache to the first storage device. The processor is further capable of receiving and processing read/write requests directed to the first storage device before all the modified data is destaged from cache.
摘要翻译：公开了一种用于缓存数据的系统和方法。处理器从主机接收数据以修改第一存储设备中的轨道。处理器将修改的数据的副本存储在高速缓存中，并且在第二存储设备中指示在高速缓存中有修改数据的轨道。在数据恢复操作期间，处理器处理第二存储设备及其中的数据以确定高速缓存中已修改数据的轨道。然后，处理器将确定的轨道标记为失败，以防止响应于读取请求而返回第一存储设备中确定的轨道上的数据，直到故障被解决为止。在另外的实施例中，响应于检测存储系统中的部分故障，处理器将扫描高速缓存以确定存储在高速缓存中的修改数据的轨道。然后，处理器在第二存储设备中存储指示在高速缓存中具有修改数据的轨道的信息，并且将修改后的数据从高速缓存调度到第一存储设备。在所有修改的数据从缓存中移出之前，处理器还能够接收和处理指向第一存储设备的读/写请求。

17. 发明授权

US06425050B1 Method, system, and program for performing read operations during a destage operation 失效
标题翻译：用于在运行期间执行读取操作的方法，系统和程序
公开(公告)号：US06425050B1
公开(公告)日：2002-07-23
申请号：US09398381
申请日：1999-09-17
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Thomas Charles Jarvis , Robert Louis Morton , Kenneth Wayne Todd
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Thomas Charles Jarvis , Robert Louis Morton , Kenneth Wayne Todd
IPC分类号： G06F1200
CPC分类号： G06F12/0804 , G06F12/0866
摘要： Disclosed is a method, system, and program for processing data access requests, such as read requests, to a storage location maintained in both a first storage, such as a cache, area and second storage area, such as a disk drive, during a destage operation. A destage operation is granted access to the storage location to destage data from the storage location in the first storage area to the second storage area. During the destage operation, a data access request is granted access to the storage location.
摘要翻译：公开了一种用于在第一存储器（例如高速缓存，区域和第二存储区域）中维护的存储位置处理数据访问请求（诸如读取请求）的方法，系统和程序，例如磁盘驱动器停船作业。允许进行到达存储位置的转移操作以将数据从第一存储区域中的存储位置转移到第二存储区域。在登船操作期间，数据访问请求被授予访问存储位置的权限。

18. 发明授权

US06324621B2 Data caching with a partially compressed cache 失效
标题翻译：使用部分压缩的缓存进行数据缓存
公开(公告)号：US06324621B2
公开(公告)日：2001-11-27
申请号：US09090028
申请日：1998-06-10
申请人： Shanker Singh , Joe-Ming Cheng , Brent Cameron Beardsley , Dell Patrick Leabo , Forrest Lee Wade , Michael Thomas Benhase , Marc Ethan Goldfeder
发明人： Shanker Singh , Joe-Ming Cheng , Brent Cameron Beardsley , Dell Patrick Leabo , Forrest Lee Wade , Michael Thomas Benhase , Marc Ethan Goldfeder
IPC分类号： G06F1200
CPC分类号： G06F12/0802 , G06F12/0871 , G06F12/0897 , G06F12/127 , G06F2212/401
摘要： Aspects for caching storage data include partitioning a storage cache to include a compressed data partition and an uncompressed data partition, and adjusting a size of the compressed data partition and the uncompressed data partition for chosen performance characteristics. A data caching system aspect in a data processing system having a host system in communication with a storage system includes at least one storage device and at least one partially compressed cache. The at least one partially compressed cache further includes an uncompressed partition and a compressed partition, where the compressed partition stores at least a victim data unit from the uncompressed partition.
摘要翻译：用于缓存存储数据的方面包括对存储高速缓存进行划分以包括压缩数据分区和未压缩数据分区，以及调整所选择的性能特征的压缩数据分区和未压缩数据分区的大小。具有与存储系统通信的主机系统的数据处理系统中的数据缓存系统方面包括至少一个存储设备和至少一个部分压缩的高速缓存。所述至少一个部分压缩缓存还包括未压缩分区和压缩分区，其中所述压缩分区至少存储来自未压缩分区的受害数据单元。

19. 发明授权

US06775738B2 Method, system, and program for caching data in a storage controller 失效
标题翻译：用于缓存存储控制器中数据的方法，系统和程序
公开(公告)号：US06775738B2
公开(公告)日：2004-08-10
申请号：US09932765
申请日：2001-08-17
申请人： Kevin John Ash , Brent Cameron Beardsley , Michael Thomas Benhase
发明人： Kevin John Ash , Brent Cameron Beardsley , Michael Thomas Benhase
IPC分类号： G06F1200
CPC分类号： G06F12/0873 , G06F12/0804 , G06F2212/262 , G06F2212/285
摘要： Provided is a method, system, and program for caching updates to one target storage device in a first and second memories, wherein the target storage device is one of a plurality of storage devices. A determination is made of an allocation of available space in the second memory to the storage devices, wherein a total of the allocation of the available space to all the storage devices exceeds one hundred percent of the available space in the second memory. An update to one target storage device is received and then a determination is made as to whether adding the update to the second memory will exceed the allocation of available space for the target storage device in the second memory. One copy of the update is written to the second memory if adding the update to the second memory will not exceed the allocation of available space for the target storage device.
摘要翻译：提供了一种用于将更新缓存到第一和第二存储器中的一个目标存储设备的方法，系统和程序，其中目标存储设备是多个存储设备之一。确定第二存储器中的可用空间的分配给存储设备，其中对所有存储设备的可用空间的总共分配超过第二存储器中的可用空间的百分之一。接收对一个目标存储设备的更新，然后确定是否将对第二存储器的更新添加将超过第二存储器中的目标存储设备的可用空间的分配。如果将更新添加到第二个内存中，则将更新的一个副本写入第二个内存不会超过目标存储设备的可用空间分配。

20. 发明授权

US06988171B2 Method and system for recovery of meta data in a storage controller 失效
公开(公告)号：US06988171B2
公开(公告)日：2006-01-17
申请号：US10143119
申请日：2002-05-09
申请人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Kenneth Wayne Todd
发明人： Brent Cameron Beardsley , Michael Thomas Benhase , Douglas A. Martin , Robert Louis Morton , Kenneth Wayne Todd
IPC分类号： G06F12/06
CPC分类号： G06F11/1435 , Y10S707/99953
摘要： Disclosed is a method, system, and article of manufacture for processing modified meta data for data recovery operations. The meta data provides information on user data maintained in a storage device. The system determines whether meta data tracks maintained in a cache were modified and indicates in a non-volatile memory that the determined meta data tracks were modified. Data recovery operations may be initiated as a result of a system failure, such as a warmstart or coldstart recovery. During such data recovery operations, the system processes the non-volatile memory and the indications of modified meta data tracks therein to rebuild lost meta data tracks in the cache.

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