专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06336173B1 Storing and tracking multiple copies of data in data storage libraries 失效
标题翻译：在数据存储库中存储和跟踪多个数据副本
公开(公告)号：US06336173B1
公开(公告)日：2002-01-01
申请号：US09283223
申请日：1999-04-01
申请人： Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , William David LaMear
发明人： Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , William David LaMear
IPC分类号： G06F1206
CPC分类号： G06F3/0614 , G06F3/0635 , G06F3/0659 , G06F3/0686 , G06F11/2058 , G06F11/2071 , G06F17/30581 , Y10S707/99952
摘要： A data storage library subsystem and a method for storing, and maintaining and tracking synchronism between, multiple copies of identifiable data volumes between hosts and a plurality of data storage libraries, and transparent to the hosts. The library controller of each library provides an updatable synchronization token directly associated with each data volume. A plurality of directors are provided, each separate from and coupled to the hosts and each separate from and coupled to each data storage library. Each director responds to ones of separate, partitioned access addresses addressed by the hosts. The responding director supplies each data volume supplied from a host to all of the data storage libraries, and updates each synchronization token directly associated with the supplied data volume. Thus, the directors store duplicate copies of the data volume in the data storage libraries without involvement by the host. The currency of the data volumes are each tracked by means of the directly associated synchronization token, and the synchronization token is not tracked by the host nor is a central tracking database required.
摘要翻译：一种数据存储库子系统以及用于存储和维护和跟踪主机与多个数据存储库之间的可识别数据卷的多个副本并且对主机透明的同步的方法。每个库的库控制器提供与每个数据卷直接相关联的可更新同步令牌。提供多个导向器，每个导体与主机分离并耦合到主机，并且每个导体与每个数据存储库分离并耦合到每个数据存储库。每个主管响应主机寻址的单独的分区访问地址。响应主管将从主机提供的每个数据卷提供给所有数据存储库，并更新与提供的数据卷直接相关联的每个同步令牌。因此，董事会将数据卷的副本存储在数据存储库中，而无需主机的参与。数据卷的货币通过直接相关的同步令牌进行跟踪，并且主机不跟踪同步令牌，也不需要中央跟踪数据库。

2. 发明授权

US06336172B1 Storing and tracking multiple copies of data in a data storage library system 失效
标题翻译：在数据存储库系统中存储和跟踪多个数据副本
公开(公告)号：US06336172B1
公开(公告)日：2002-01-01
申请号：US09283222
申请日：1999-04-01
申请人： Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , William David LaMear
发明人： Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , William David LaMear
IPC分类号： G06F1206
CPC分类号： G06F3/0614 , G06F3/0635 , G06F3/0659 , G06F3/0686 , Y10S707/99952
摘要： A data storage library system and a method for storing, and maintaining and tracking synchronism between, multiple copies of identifiable data volumes between hosts and a plurality of data storage libraries, and transparent to the hosts. The library controller of each library provides an updatable synchronization token directly associated with each data volume. A plurality of directors are provided, each separate from and coupled to the hosts and each separate from and coupled to each data storage library. Each director responds to ones of separate, partitioned access addresses addressed by the hosts. The responding director supplies each data volume supplied from a host to all of the data storage libraries, and updates each synchronization token directly associated with the supplied data volume. Thus, the directors store duplicate copies of the data volume in the data storage libraries without involvement by the host. The currency of the data volumes are each tracked by means of the directly associated synchronization token, and the synchronization token is not tracked by the host nor is a central tracking database required.
摘要翻译：数据存储库系统和用于在主机与多个数据存储库之间存储和维护和跟踪多个可识别数据卷副本之间的同步的方法，并且对主机是透明的。每个库的库控制器提供与每个数据卷直接相关联的可更新同步令牌。提供多个导向器，每个导体与主机分离并耦合到主机，并且每个导体与每个数据存储库分离并耦合到每个数据存储库。每个主管响应主机寻址的单独的分区访问地址。响应主管将从主机提供的每个数据卷提供给所有数据存储库，并更新与提供的数据卷直接相关联的每个同步令牌。因此，董事会将数据卷的副本存储在数据存储库中，而无需主机的参与。数据卷的货币通过直接相关的同步令牌进行跟踪，并且主机不跟踪同步令牌，也不需要中央跟踪数据库。

3. 发明授权

US06865642B2 Method and apparatus for disk caching for an intermediary controller 失效
标题翻译：用于中间控制器的磁盘缓存的方法和装置
公开(公告)号：US06865642B2
公开(公告)日：2005-03-08
申请号：US09103701
申请日：1998-06-24
申请人： Kenneth Fairclough Day, III , Douglas William Dewey , Norman Iwao Hanami , Dean Lee Hanson , David Allan Pease
发明人： Kenneth Fairclough Day, III , Douglas William Dewey , Norman Iwao Hanami , Dean Lee Hanson , David Allan Pease
IPC分类号： G06F12/08 , G06F12/00 , G06F13/00
CPC分类号： G06F12/0897 , G06F12/0866
摘要： A disk caching method for an intermediary controller is disclosed. Requests for data blocks are made and then disk caching is performed according to a most expedient cache method. The disk caching method may be performed by asynchronously requesting a data record from both a intermediary controller disk storage and from a intermediary controller cache and using a first received copy of the data record, the first received copy being a copy received first from the intermediary controller disk storage. Alternatively, the disk caching may be performed by searching an intermediary controller cache to determine whether requested data is located in the cache of the intermediary controller, searching a storage device of the intermediary controller to determine whether requested data is located in the storage device of the intermediary controller and retrieving the requested data from a disk controller coupled to the intermediary controller when the requested data is not in the cache or storage device of the intermediary controller. The intermediary controller maintains a cache hit ratio for cache in a disk controller cache and chooses a cache method based upon a comparison of the hit ratio to the threshold. The intermediary controller selects an item to replace in the intermediary controller cache, moves data into the intermediary controller cache, determines whether the hit ratio of the disk controller is greater than the threshold and moves the item into the intermediary controller storage device when the hit ratio of the disk controller cache is greater than the threshold. The intermediary controller discards the item form the cache of the intermediary controller when the hit ratio of the disk controller is not greater than the threshold.
摘要翻译：公开了一种中间控制器的磁盘缓存方法。对数据块进行请求，然后根据最适宜的缓存方法执行磁盘缓存。可以通过从中间控制器盘存储器和中间控制器高速缓存异步地请求数据记录并使用数据记录的第一接收副本来执行磁盘缓存方法，第一接收副本是从中间控制器首先接收的副本磁盘存储。或者，可以通过搜索中间控制器高速缓存来确定所请求的数据是否位于中间控制器的高速缓存中，搜索中间控制器的存储设备以确定所请求的数据是否位于存储设备的存储设备中中间控制器，并且当请求的数据不在中间控制器的高速缓存或存储设备中时，从耦合到中间控制器的磁盘控制器检索所请求的数据。中间控制器维护磁盘控制器高速缓存中的高速缓存命中率，并且基于命中率与阈值的比较来选择高速缓存方法。中间控制器选择要在中间控制器高速缓存中替换的项目，将数据移动到中间控制器高速缓存中，确定盘控制器的命中率是否大于阈值，并且当命中率的磁盘控制器缓存大于阈值。当控制器的命中率不大于阈值时，中间控制器将物品形成中间控制器的缓存。

4. 发明授权

US06477628B1 Backup copy achieving improved efficiency by waiting until rewind/unload command for bulk data copy 有权
标题翻译：备份副本通过等待批量数据复制的倒带/卸载命令来提高效率
公开(公告)号：US06477628B1
公开(公告)日：2002-11-05
申请号：US09493599
申请日：2000-01-28
申请人： Thomas William Bish , Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , Mark A. Reid
发明人： Thomas William Bish , Kenneth Fairclough Day, III , Douglas William Dewey , Dean Lee Hanson , Mark A. Reid
IPC分类号： G06F1200
CPC分类号： G06F11/1461 , G06F3/0613 , G06F3/065 , G06F3/0686 , G06F11/1456
摘要： A particularly efficient storage system makes redundant copies of data on tape by waiting until a rewind/unload command is received and then copying stored data objects en masse, thereby benefitting from any data compression used to store the objects along with the lower overhead for the copy operation. This copy operation is more efficient than the data objects' original storage, because there is less overhead in copying the data objects en masse; also, there is less data to copy if the data objects were stored with any data compression. Efficiency may be further increased by dividing the task of originally writing the data objects between paired tape drives, and then exchanging data objects between the tape drives upon issuance of the rewind/unload command.
摘要翻译：一个特别高效的存储系统通过等待直到接收到倒带/卸载命令，然后再次复制存储的数据对象，从而从用于存储对象的任何数据压缩以及副本的较低开销操作。这种复制操作比数据对象的原始存储效率更高，因为大量复制数据对象的开销较少; 如果数据对象与任何数据压缩一起存储，则还有较少的数据要复制。通过将最初写入数据对象的任务划分成成对的磁带驱动器，然后在发出回卷/卸载命令之后在磁带驱动器之间交换数据对象，可以进一步提高效率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式