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1. 发明授权

US06480904B1 Disk-time-sharing apparatus and method 有权
标题翻译：磁盘分时装置和方法
公开(公告)号：US06480904B1
公开(公告)日：2002-11-12
申请号：US09495878
申请日：2000-02-02
申请人： Tadaomi Kato , Osamu Kimura , Mikio Ito , Riichiro Take , Yuuji Hotta
发明人： Tadaomi Kato , Osamu Kimura , Mikio Ito , Riichiro Take , Yuuji Hotta
IPC分类号： G06F1200
CPC分类号： G06F9/4881 , G06F3/0611 , G06F3/0613 , G06F3/0659 , G06F3/0689
摘要： A disk time-sharing apparatus is constructed by a disk apparatus having disk drives, an input/output request unit for issuing an input/output request to the disk apparatus, and an input/output scheduling unit. The input/output scheduling unit forms input/output groups obtained by grouping inputs/output sources to/from the disk apparatus, defines a ratio of time during which each input/output group uses the disk apparatus, and decides quanta (allocating time) &tgr;1 to &tgr;3 during which each input/output group can use the disk apparatus continuously on the basis of the defined time ratio. When input/output requests are received to the disk apparatus from a plurality of input/output groups, a time-sharing for using the disk apparatus by switching the allocating time &tgr;1 to &tgr;3 sequentially among the competing input/output groups is performed.
摘要翻译：磁盘分时装置由具有盘驱动器的盘装置，用于向盘装置发出输入/输出请求的输入/输出请求单元和输入/输出调度单元构成。输入/输出调度单元形成通过将来自盘装置的输入/输出源分组获得的输入/输出组，定义每个输入/输出组使用盘装置的时间比，并且决定量子（分配时间）tau1 其中每个输入/输出组可以基于所定义的时间比率连续地使用盘装置。当从多个输入/输出组接收到磁盘装置的输入/输出请求时，执行通过在竞争的输入/输出组之间顺序切换分配时间τ1至tau3来使用磁盘装置的分时。

2. 发明授权

US06715006B1 Disk time-sharing apparatus and method 有权
标题翻译：磁盘分时设备和方法
公开(公告)号：US06715006B1
公开(公告)日：2004-03-30
申请号：US09562965
申请日：2000-05-03
申请人： Yuuji Hotta , Riichiro Take , Tadaomi Kato , Mikio Ito , Hidejiro Daikokuya
发明人： Yuuji Hotta , Riichiro Take , Tadaomi Kato , Mikio Ito , Hidejiro Daikokuya
IPC分类号： G06F1202
CPC分类号： G06F3/0613 , G06F3/0659 , G06F3/0689
摘要： An input/output scheduling unit forms input/output groups obtained by grouping inputs/outputs to/from a disk apparatus. The input/output scheduling unit defines a ratio of the time during which each input/output group uses the disk apparatus and defines quanta &tgr;1 to &tgr;3 during which each input/output group can continuously use the disk apparatus on the basis of the defined time ratios. When input/output requests are received from a plurality of input/output groups to the disk apparatus, the input/output scheduling unit performs the time-sharing for sequentially switching the allocating times &tgr;1 to &tgr;3 between the input/output groups which competed and using the disk apparatus. Further, an allocating time of the remaining quanta is distributed to the quanta on the shortage side by an allocating time control unit in accordance with a degree of jam of each input/output group.
摘要翻译：输入/输出调度单元形成通过将来自盘装置的输入/输出分组获得的输入/输出组。输入/输出调度单元定义每个输入/输出组使用盘装置的时间的比率，并且定义量子tau1至tau3，在此期间，每个输入/输出组可以基于所定义的时间比率连续地使用盘装置。当从多个输入/输出组向盘装置接收到输入/输出请求时，输入/输出调度单元执行用于顺序切换竞争和使用的输入/输出组之间的分配时间tau1至tau3的分时盘装置。此外，通过分配时间控制单元根据每个输入/输出组的卡纸程度将剩余量子的分配时间分配给短缺侧的量子。

3. 发明授权

US06615313B2 Disk input/output control device maintaining write data in multiple cache memory modules and method and medium thereof 有权
标题翻译：磁盘输入/输出控制装置保持多个高速缓存存储器模块中的写入数据及其方法和介质
公开(公告)号：US06615313B2
公开(公告)日：2003-09-02
申请号：US09779845
申请日：2001-02-09
申请人： Tadaomi Kato , Hideaki Omura , Hiromi Kubota
发明人： Tadaomi Kato , Hideaki Omura , Hiromi Kubota
IPC分类号： G06F1200
CPC分类号： G06F11/1666 , G06F11/20 , G06F12/0868 , G06F2212/283
摘要： An input/output control device uses all of its cache memory effectively and allows cache memory modules to be added in increments of one. When cache memory included in the input/output control device is operating normally and the input/output control device receives a write request from a processing device, the input/output control device returns a write request completed response after writing data to cache memory as set forth in configuration information included in the input/output control device. The write data in the cache memory is then written to one or more disk devices asynchronously with the write completed response. When there is a problem with a cache memory module, the write data that was to be written to the region controlled by the cache memory module where the problem occurred is divided among the remaining cache memory modules. When adding more cache memory modules, the input/output control device writes data to the cache memory in response to a write request from a processing device based on the configuration information after the cache memory was increased and after the data was moved as set forth in the configuration information corresponding to the cache memory increase.
摘要翻译：输入/输出控制设备有效地使用其所有高速缓冲存储器，并允许以1为增量添加高速缓冲存储器模块。当输入/输出控制装置中包括的高速缓冲存储器正常运行并且输入/输出控制装置从处理装置接收写入请求时，输入/输出控制装置在将数据写入高速缓冲存储器之后返回写入请求完成响应包括在输入/输出控制装置中的配置信息中。然后将高速缓冲存储器中的写入数据与写入完成的响应异步地写入一个或多个磁盘设备。当高速缓冲存储器模块存在问题时，将要写入到由高速缓冲存储器模块控制的区域的写入数据在剩余的高速缓存存储器模块中分配。当添加更多高速缓冲存储器模块时，输入/输出控制设备响应于来自处理设备的写入请求，基于缓存存储器增加之后的配置信息和数据移动之后将数据写入高速缓冲存储器，如与高速缓冲存储器相对应的配置信息增加。

4. 发明授权

US06732245B2 Copying method between logical disks, disk-storage system and its storage medium 有权
标题翻译：逻辑磁盘，磁盘存储系统及其存储介质之间的复制方法
公开(公告)号：US06732245B2
公开(公告)日：2004-05-04
申请号：US10259506
申请日：2002-09-30
申请人： Norikazu Kaiya , Yasuhiro Onda , Tadaomi Kato
发明人： Norikazu Kaiya , Yasuhiro Onda , Tadaomi Kato
IPC分类号： G06F1200
CPC分类号： G06F11/1466 , G06F3/0601 , G06F3/0619 , G06F3/065 , G06F3/0689 , G06F2003/0697
摘要： A copying method, disk storage system, and storage medium for copying data from one logical disk to another logical disk, making possible immediate access, in response to a copy command. Copying from a first logical disk to a second logical disk is performed for each area in a copy range, and where is an access to either logical disk, copying is interrupted. When performing update access of an uncopied area in the first logical disk, the area is copied from the first logical disk to a second logical disk, and then the uncopied area is updated. When performing reference access of an uncopied area in the second logical disk, the corresponding area in the first logical disk is referenced. When performing update access of an uncopied area in the second logical disk, that area in the second logical disk is updated, and copying is prohibited. In this way, it is possible to access the first and second logical disks while copying is in progress, and it is possible to immediately notify a host, upon receipt of a copy instruction, that a copying has been completed.
摘要翻译：复制方法，磁盘存储系统和存储介质，用于将数据从一个逻辑磁盘复制到另一个逻辑磁盘，使得可以立即访问响应于复制命令。对于复制范围内的每个区域执行从第一个逻辑磁盘复制到第二个逻辑磁盘，并且哪里可以访问任一逻辑磁盘，复制被中断。当执行第一逻辑磁盘中未遮盖区域的更新访问时，将该区域从第一逻辑磁盘复制到第二逻辑磁盘，然后更新未覆盖的区域。当在第二个逻辑磁盘中执行未占用区域的参考访问时，将引用第一个逻辑磁盘中的相应区域。当在第二逻辑磁盘中执行未覆盖区域的更新访问时，第二逻辑磁盘中的该区域被更新，并且禁止复制。以这种方式，可以在复制过程中访问第一和第二逻辑磁盘，并且可以在接收到复制指令时立即通知主机复制已经完成。

5. 发明申请

US20060106926A1 System and program for detecting disk array device bottlenecks 审中-公开
标题翻译：用于检测磁盘阵列设备瓶颈的系统和程序
公开(公告)号：US20060106926A1
公开(公告)日：2006-05-18
申请号：US11321578
申请日：2005-12-29
申请人： Tadaomi Kato , Keiko Hiyoshi , Juichi Sakai , Naoki Hirabayashi , Takaaki Yamato , Tomonari Horikoshi
发明人： Tadaomi Kato , Keiko Hiyoshi , Juichi Sakai , Naoki Hirabayashi , Takaaki Yamato , Tomonari Horikoshi
IPC分类号： G06F15/173
CPC分类号： G06F11/3419 , G06F11/3452 , G06F2201/81
摘要： A system is provided in which a server which provides a service to a client terminal, a disk array device upon which data used by the server is stored, and a monitor terminal which detects a bottleneck on the disk array device, are connected via a network. The disk array device or the server calculates performance information including the number of IO requests issued by the server, the times required for processing the IO requests, and a resource utilization ratio for each resource included in the disk array device. The monitor terminal establishes a reference point based upon an average response time obtained by dividing the processing time included in the performance information by the number of the IO requests. And the system is characterized in that a resource is identified as a bottleneck, based upon the resource utilization ratio in a predetermined interval before the reference point.
摘要翻译：提供了一种系统，其中向客户终端提供服务的服务器，存储有服务器使用的数据的磁盘阵列设备和检测磁盘阵列设备上的瓶颈的监视终端经由网络。磁盘阵列设备或服务器计算包括服务器发出的IO请求数，处理IO请求所需的时间以及磁盘阵列设备中包含的每个资源的资源利用率的性能信息。监视终端基于通过将执行信息中包括的处理时间除以IO请求的数量获得的平均响应时间来建立参考点。该系统的特征在于，基于在参考点之前的预定间隔中的资源利用率，将资源识别为瓶颈。

6. 发明授权

US06757797B1 Copying method between logical disks, disk-storage system and its storage medium 有权
标题翻译：逻辑磁盘，磁盘存储系统及其存储介质之间的复制方法
公开(公告)号：US06757797B1
公开(公告)日：2004-06-29
申请号：US09534113
申请日：2000-03-23
申请人： Norikazu Kaiya , Yasuhiro Onda , Tadaomi Kato
发明人： Norikazu Kaiya , Yasuhiro Onda , Tadaomi Kato
IPC分类号： G06F1200
CPC分类号： G06F11/1466 , G06F3/0601 , G06F3/0619 , G06F3/065 , G06F3/0689 , G06F2003/0697
摘要： A copying method, disk storage system, and storage medium for copying data from one logical disk to another logical disk, making possible immediate access, in response to a copy command. Copying from a first logical disk to a second logical disk is performed for each area in a copy range, and when there is an access to either logical disk, copying is interrupted. When performing update access of an uncopied area in the first logical disk, the area is copied from the first logical disk to the second logical disk, and then the uncopied area is updated. When performing reference access of an uncopied area in the second logical disk, the corresponding area in the first logical disk is referenced. When performing update access of an uncopied area in the second logical disk, that area in the second logical disk is updated, and copying is prohibited. In this way, it is possible to access the first and second logical disks while copying is in progress, and it is possible to immediately notify a host, upon receipt of a copy instruction, that a copying has been completed.
摘要翻译：复制方法，磁盘存储系统和存储介质，用于将数据从一个逻辑磁盘复制到另一个逻辑磁盘，使得可以立即访问响应于复制命令。对于复制范围中的每个区域执行从第一逻辑磁盘复制到第二逻辑磁盘，并且当存在对任一逻辑磁盘的访问时，复制被中断。当执行第一逻辑磁盘中的未遮盖区域的更新访问时，将该区域从第一逻辑磁盘复制到第二逻辑磁盘，然后更新未覆盖的区域。当在第二个逻辑磁盘中执行未占用区域的参考访问时，将引用第一个逻辑磁盘中的相应区域。当在第二逻辑磁盘中执行未覆盖区域的更新访问时，第二逻辑磁盘中的该区域被更新，并且禁止复制。以这种方式，可以在复制过程中访问第一和第二逻辑磁盘，并且可以在接收到复制指令时立即通知主机复制已经完成。

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