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公开(公告)号：US20170351601A1
公开(公告)日：2017-12-07
申请号：US15544529
申请日：2015-06-01
申请人： Hitachi, Ltd.
发明人： Keiichi MATSUZAWA , Hitoshi KAMEI
CPC分类号： G06F12/0238 , G06F12/023 , G06F12/0638 , G06F12/0871 , G06F12/10 , G06F12/109 , G06F2212/1044 , G06F2212/152 , G06F2212/202 , G06F2212/205 , G06F2212/222 , G06F2212/461 , G06F2212/466 , G06F2212/65 , G06F2212/7201
摘要： An allocation request for requesting allocation of a target virtual area with respect to target data issued to a system program includes a target ID corresponding to the target data. In response to the allocation request, whether or not the target ID is included in data map information is determined. When it is included in the data map information, the system program determines whether or not a target physical area is included in a storage apparatus. When the target physical area is included in the storage apparatus, the system program reserves a free area in a non-volatile memory as a target memory area, copies target data stored in the storage apparatus to the target memory area, changes the target physical area in the data map information to the target memory area, and writes an association between the target virtual area and the target memory area into the volatile memory.
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2.发明申请公开(公告)号：US20160034358A1
公开(公告)日：2016-02-04
申请号：US14423885
申请日：2014-01-17
申请人： HITACHI, LTD.
CPC分类号： G06F11/1464 , G06F3/0619 , G06F3/065 , G06F3/067 , G06F11/1446 , G06F11/1451 , G06F11/1471 , G06F12/0802 , G06F12/0868 , G06F2201/82 , G06F2201/84 , G06F2212/1032
摘要： A storage apparatus is connected to a host apparatus and a secondary storage apparatus and includes a memory, a storage device, and a processor. The memory includes a save memory area and a cache memory area that temporarily stores data received from the host apparatus. The storage device stores data that is received from the host apparatus.The processor controls a duplication process for specified data to another storage apparatus at a point in time of a start of duplication, saves a first data block into the save memory area when receiving an update request of the first data block in the cache memory area after the start of duplication, and updates the first data block in the cache memory area to an updated data block.
摘要翻译： 存储装置连接到主机装置和辅助存储装置，并且包括存储器，存储装置和处理器。 存储器包括临时存储从主机装置接收的数据的保存存储区域和高速缓冲存储器区域。 存储装置存储从主机装置接收到的数据。 处理器在复制开始时控制对另一存储装置的指定数据的复制处理，当在高速缓存存储区域中接收到高速缓冲存储器区域中的第一数据块的更新请求之后，将第一数据块保存到存储区域中 复制的开始，并且将高速缓冲存储器区域中的第一数据块更新为更新的数据块。
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公开(公告)号：US20180013827A1
公开(公告)日：2018-01-11
申请号：US15540041
申请日：2015-01-30
申请人： Hitachi, Ltd.
摘要： A file server apparatus includes a second file system volume including cache data of a first file system volume stored in a shared file storage apparatus. The file server apparatus determines the operation type indicated by an access request to the first file system volume from a client. When the operation type is directory operation, the file server sends an instruction of directory operation to the shared file storage apparatus, and then transmits a completion response to the client. When the operation type is file operation, the file server apparatus executes a file operation in the second file system volume, transmits a completion response to the client, and then transmits a file operation instruction to the shared file storage apparatus.
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公开(公告)号：US20170286447A1
公开(公告)日：2017-10-05
申请号：US15507684
申请日：2014-10-30
申请人： Hitachi, Ltd.
发明人： Hieuhanh LE , Masanori TAKATA , Yoji NAKATANI , Hitoshi ARAI , Hitoshi KAMEI , Akiyoshi TSUCHIYA , Atsushi SUTOH
IPC分类号： G06F17/30
CPC分类号： G06F16/1774 , G06F16/122 , G06F16/182
摘要： A computer system for sharing objects comprises multiple front-end nodes and a back-end node for providing a namespace shared by the front-end nodes. A first front-end node that is any one of the front-end nodes manages local-lock counts for each of objects managed by the first front-end node. The local-lock count is the number of locks taken by operations to the objects including the directory and sub-objects thereof. Every time receiving a request for processing a target object from a client, the front-end node requests the back-end node to lock a parent directory of the target object if the parent directory has not been locked by the back-end node. The front-end node sends a response of the received request to the client regardless of whether or not the parent directory has been unlocked by the back-end node. If the local-lock count of the parent directory is zero, the first front-end node requests the back-end node to unlock the parent directory.
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公开(公告)号：US20210389990A1
公开(公告)日：2021-12-16
申请号：US17200350
申请日：2021-03-12
申请人： Hitachi, Ltd.
IPC分类号： G06F9/50
摘要： A computer system is constituted by a plurality of physical computers including a first physical computer and a second physical computer. One or more application instances that perform an application service and a storage service instance that provides a storage service including a volume used by the application instance operate on the first physical computer. The computer system predicts a future resource usage status of the first physical computer, creates a plan to move the one or more application instances operating on the first physical computer to the second physical computer based on the predicted future resource usage status, and executes the created plan.
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公开(公告)号：US20180109611A1
公开(公告)日：2018-04-19
申请号：US15540045
申请日：2015-01-30
申请人： Hitachi, Ltd.
CPC分类号： H04L67/1095 , G06F11/00 , G06F16/176 , G06F16/1827 , G06F16/1873 , H04L67/1097
摘要： (A) and (B), described hereinafter, are carried out for objects which differ between an reflection source namespace and a reflection destination namespace, with respect to either: a center node in a migration, which applies an update of a first local namespace which a first edge node (any edge node) provides to a center namespace; or a second edge node (any edge node other than the first edge node) in a synchronization, which applies an update of the center namespace to a second local namespace which the second edge node provides. Specifically, either the center node or the second edge node: (A) determines whether the situation with respect to the differing objects corresponds to a conflict case among defined conflict cases; and (B) if the result of the determination in (A) is affirmative, executes a process according to a confliction resolution policy which is associated with the corresponding conflict case.
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公开(公告)号：US20160371035A1
公开(公告)日：2016-12-22
申请号：US15122310
申请日：2014-03-27
申请人： HITACHI, LTD.
发明人： Mitsuo HAYASAKA , Ken NOMURA , Keiichi MATSUZAWA , Hitoshi KAMEI
IPC分类号： G06F3/06
CPC分类号： G06F3/0659 , G06F3/0608 , G06F3/0611 , G06F3/064 , G06F3/0673 , G06F3/0676 , G06F12/0804 , G06F12/0871 , G06F2212/1016 , G06F2212/312
摘要： An example of storage system obtains a reference request of a reference request data block that is included in the content and is stored in the medium area. The storage system determines a number of gaps among addresses, in the medium area, of a plurality of data blocks continuous in the content including the reference request data block. The storage system determines, based on the number of gaps, whether or not defrag based on the plurality of data blocks is valid. The storage system writes, when the defrag is determined to be valid, the plurality of data blocks read from the medium area to the memory area, into continuous address areas of the medium area.
摘要翻译： 存储系统的示例获得包含在内容中并存储在介质区域中的参考请求数据块的参考请求。 存储系统确定在包括参考请求数据块的内容中连续的多个数据块的中间区域中的地址间的数量。 存储系统基于间隙的数量确定基于多个数据块的碎片整理是否有效。 存储系统在将碎片整理确定为有效时，将从介质区域读取的多个数据块写入存储器区域，写入到介质区域的连续地址区域中。
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公开(公告)号：US20150356108A1
公开(公告)日：2015-12-10
申请号：US14760568
申请日：2013-05-21
申请人： HITACHI, LTD.
发明人： Hitoshi KAMEI , Masaaki IWASAKI
IPC分类号： G06F17/30
CPC分类号： G06F16/172 , G06F12/084 , G06F16/13 , G06F16/148 , G06F16/188
摘要： The present invention is provided to suppress input and output requests to a storage apparatus when a plurality of cloned files has been created based on one shared file. A storage system comprises a plurality of clone-use cache areas 304 corresponding to the cloned files, and a shared cache area 305 corresponding to a shared file. When a read request for any of the cloned files has been received, a prescribed clone-use cache area, from among the plurality of clone-use cache areas, that corresponds to the read-target cloned file is searched for the read-target data, and when determination is made that the read-target data does not exist in the prescribed clone-use cache area, the shared cache area 305 is searched for the read-target data.
摘要翻译： 提供本发明以在基于一个共享文件创建多个克隆文件时抑制对存储装置的输入和输出请求。 存储系统包括对应于克隆文件的多个克隆使用高速缓存区域304和对应于共享文件的共享缓存区域305。 当已经接收到针对任何克隆文件的读取请求时，从多个克隆使用缓存区域中的与读取目标克隆文件相对应的规定的克隆使用缓存区域被搜索到读取目标数据 ，并且当确定读取目标数据不存在于规定的克隆使用高速缓存区域中时，搜索共享高速缓存区域305以读取目标数据。
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9.发明申请公开(公告)号：US20140250157A1
公开(公告)日：2014-09-04
申请号：US14275018
申请日：2014-05-12
申请人： HITACHI, LTD.
发明人： Atsushi SUTOH , Masanori TAKATA , Hitoshi KAMEI , Nobumitsu TAKAOKA , Takahiro NAKANO , Akio SHIMADA
IPC分类号： G06F17/30
CPC分类号： G06F17/3012 , G06F17/30079 , G06F17/30082 , G06F17/30221
摘要： Time required for a file server to determine files to be migrated from a first storage region to a second storage region is reduced. A file service system coupled to the storage system for providing a first storage region and a second storage region stores identifiers of files that have been accessed by a client, in accessed file identifier information and determines the files to be migrated from the first storage region to the second storage region based on metadata of the files stored in the first storage region and the accessed file identifier information.
摘要翻译： 减少文件服务器确定要从第一存储区域迁移到第二存储区域的文件所需的时间。 耦合到存储系统的用于提供第一存储区域和第二存储区域的文件服务系统存储由客户端访问的文件的标识符，并将其从第一存储区域迁移到 基于存储在第一存储区域中的文件的元数据和所访问的文件标识符信息的第二存储区域。
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公开(公告)号：US20170351700A1
公开(公告)日：2017-12-07
申请号：US15541588
申请日：2015-01-30
申请人： Hitachi, Ltd.
摘要： Each file storage apparatus of a plurality of file storage apparatuses stores a file system, and associates and stores paths of elements in the file system and archive destinations of the elements in an archive storage apparatus. When the file system is operated, each file storage apparatus transmits archive data of an element as an operation target, and operation information including operation details to the archive storage apparatus. The archive storage apparatus receives the archive data and the operation information, stores the archive data, and stores consistency information including the operation information and archive versions indicating a reception order of the operation information. A first file storage apparatus executes a synchronization process of acquiring the consistency information from the archive storage apparatus, correcting inconsistency between the acquired consistency information and consistency information including archive versions earlier than the acquired consistency information, and reflecting the file system on the consistency information.
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