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1. 发明申请

US20190198063A1 CONTROL METHOD OF ENVIRONMENTAL TEMPERATURE OF STORAGE DRIVE 审中-公开
公开(公告)号：US20190198063A1
公开(公告)日：2019-06-27
申请号：US16329657
申请日：2017-04-19
申请人： Hitachi, Ltd.
发明人： Masahiro TSURUYA , Masahiro ARAI , Akifumi SUZUKI , Shimpei NOMURA
IPC分类号： G11C7/04 , G11C11/56 , G06F12/16 , G11C16/26
CPC分类号： G11C7/04 , G06F12/16 , G11C11/5628 , G11C16/26
摘要： A system including a first storage drive and a superior device superior to the first storage drive, wherein the superior device specifies a first allowable environmental temperature that makes the remaining lifetime of the first storage drive longer than the remaining operation schedule period of the first storage drive, and controls an environmental temperature adjusting device that adjusts the environmental temperature of the first storage drive on the basis of the first allowable environmental temperature.

2. 发明申请

US20220291842A1 STORAGE DEVICE 有权
公开(公告)号：US20220291842A1
公开(公告)日：2022-09-15
申请号：US17752923
申请日：2022-05-25
申请人： Hitachi, Ltd.
发明人： Masahiro TSURUYA , Nagamasa MIZUSHIMA , Tomohiro YOSHIHARA , Kentaro SHIMADA
IPC分类号： G06F3/06 , G06F16/174
摘要： The storage device includes a first memory, a process device that stores data in the first memory and reads the data from the first memory, and an accelerator that includes a second memory different from the first memory. The accelerator stores compressed data stored in one or more storage drives storing data, in the second memory, decompresses the compressed data stored in the second memory to generate plaintext data, extracts data designated in the process device from the plaintext data, and transmits the extracted designated data to the first memory.

3. 发明申请

US20200073586A1 INFORMATION PROCESSOR AND CONTROL METHOD 审中-公开
公开(公告)号：US20200073586A1
公开(公告)日：2020-03-05
申请号：US16292490
申请日：2019-03-05
申请人： Hitachi, Ltd.
发明人： Naruki KURATA , Hiroki FUJII , Masahiro TSURUYA
IPC分类号： G06F3/06 , G06F12/02
摘要： An information processing apparatus includes a storage controller and a storage device. The storage controller manages a first address space in which data is recorded in a log-structured format in response to a write request from a host. The storage device manages a second address space in which data is recorded in a log-structured format in response to a write request from the storage controller. The storage controller sets a unit by which the storage controller performs garbage collection in the first address space to a multiple of a unit by which the storage device performs garbage collection in the second address space.

4. 发明申请

US20190205035A1 FLASH MEMORY MODULE AND CONTROL METHOD OF FLASH MEMORY MODULE 审中-公开
公开(公告)号：US20190205035A1
公开(公告)日：2019-07-04
申请号：US16325942
申请日：2016-11-08
申请人： Hitachi, Ltd.
发明人： Nagamasa MIZUSHIMA , Masahiro TSURUYA , Masahiro ARAI
IPC分类号： G06F3/06 , G06F12/02
CPC分类号： G06F3/0608 , G06F3/06 , G06F3/0629 , G06F3/064 , G06F3/0656 , G06F3/0659 , G06F3/0679 , G06F12/00 , G06F12/0246 , G06F12/04 , G06F2212/401
摘要： A storage apparatus includes: a flash memory that provides a storage area; a controller that controls writing and reading of data to and from the storage area; and a buffer memory that temporarily stores data to be written in the storage area, in which the controller selects one compression method from a first reversible compression method and a second reversible compression method based on access performance to the flash memory, and determines to compress data based on the selected one compression method and to write the compressed data to the storage area, and the first reversible compression method has a lower compression ratio and a slower compression speed than the second reversible compression method.

5. 发明申请

US20180314426A1 STORAGE DEVICE AND STORAGE DEVICE CONTROL METHOD 审中-公开
公开(公告)号：US20180314426A1
公开(公告)日：2018-11-01
申请号：US15769418
申请日：2016-01-22
申请人： HITACHI, LTD.
发明人： Masahiro TSURUYA , Ryo HANAFUSA , Osamu KAWAGUCHI
IPC分类号： G06F3/06 , G06F12/10
CPC分类号： G06F3/064 , G06F3/0608 , G06F3/0631 , G06F3/0659 , G06F3/0679 , G06F12/0246 , G06F12/04 , G06F12/10 , G06F2212/1044 , G06F2212/401 , G06F2212/7201 , G06F2212/7204 , G06F2212/7207 , G06F2212/7209
摘要： It is possible to prevent unoccupied blocks from being depleted by a write of logical-physical management information. A processor is capable of performing an unoccupied user block generation process by moving user data stored in allocated user blocks in order to generate unoccupied user blocks serving as unoccupied blocks among allocated user blocks, and performing an unoccupied meta block generation process by moving meta data stored in allocated meta blocks in order to generate unoccupied meta blocks serving as unoccupied blocks among the allocated meta blocks. The processor calculates the number of unoccupied meta blocks to be consumed, that is, the number of unoccupied meta blocks to be consumed by the unoccupied user block generation process. The processor performs the unoccupied meta block generation process based on the number of unoccupied meta blocks to be consumed.

6. 发明申请

US20170003891A1 STORAGE DEVICE AND MAINTENANCE/OPERATION SYSTEM THEREFOR 审中-公开
标题翻译：存储设备及其维护/操作系统
公开(公告)号：US20170003891A1
公开(公告)日：2017-01-05
申请号：US15125740
申请日：2014-09-26
申请人： HITACHI, LTD.
发明人： Masahiro ARAI , Masahiro TSURUYA
IPC分类号： G06F3/06
CPC分类号： G06F3/0616 , G06F3/0631 , G06F3/0644 , G06F3/0647 , G06F3/0653 , G06F3/0659 , G06F3/0688 , G06F3/08 , G06F11/1076
摘要： A storage subsystem constituting a pool using storage media having rewrite life and providing a logical volume having a virtual capacity to a host, wherein the storage subsystem monitors whether shortage of a remaining rewrite life of the capacity pool will occur or not within an operation period of the storage subsystem, and when it is determined that shortage of the remaining rewrite life will occur, the subsystem converts the rewrite life required to cover the shortage into drive capacity and indicates the same, or indicates the same by reducing an existing pool capacity, and requests maintenance of the subsystem. A maintenance method is provided, wherein elongation of life is executed by adding a capacity to the pool at the time of indication, and as for addition of capacity other than the elongation of life described above, a maintenance fee is charged.
摘要翻译：一种存储子系统，其使用具有重写寿命的存储介质构成池，并向主机提供具有虚拟容量的逻辑卷，其中，所述存储子系统监视在所述存储介质的操作周期内是否发生所述容量池的剩余重写寿命是否不足存储子系统，并且当确定将发生剩余重写寿命的短缺时，子系统将覆盖短缺所需的重写寿命转换为驱动器容量并指示相同或通过减少现有池容量来指示相同，以及要求维护子系统。提供一种维护方法，其中通过在指示时向池中增加容量来执行寿命延长，并且对于除了上述寿命延长以外的容量的添加，收取维护费用。

7. 发明申请

US20220164146A1 STORAGE SYSTEM AND CONTROL METHOD FOR STORAGE SYSTEM 有权
公开(公告)号：US20220164146A1
公开(公告)日：2022-05-26
申请号：US17472845
申请日：2021-09-13
申请人： Hitachi, Ltd.
发明人： Masahiro TSURUYA , Norio SHIMOZONO , Akira YAMAMOTO , Kentaro SHIMADA , Takashi NAGAO
IPC分类号： G06F3/06
摘要： A storage system includes: a controller which includes a processor and a memory; and one or more storage devices. The controller sets a plurality of logical volumes, stores data related to a write request in the memory when the write request is received in the logical volume, and collectively compresses a plurality of pieces of data related to the write request in the memory and writes the compressed data to the storage device. When a plurality of pieces of data related to a plurality of the logical volumes that need to be written to the storage device exist in the memory, the controller selects the plurality of pieces of data in an identical logical volume, and collectively compresses the plurality of pieces of selected data and writes the compressed data in the storage device.

8. 发明申请

US20190213078A1 STORAGE APPARATUS 审中-公开
公开(公告)号：US20190213078A1
公开(公告)日：2019-07-11
申请号：US16327307
申请日：2017-04-03
申请人： Hitachi, Ltd.
发明人： Mitsuo DATE , Hideyuki KOSEKI , Akifumi SUZUKI , Masahiro TSURUYA
IPC分类号： G06F11/10 , G06F3/06
CPC分类号： G06F11/1096 , G06F3/0614 , G06F3/0658 , G06F3/0689 , G06F11/10 , G06F11/14
摘要： A storage apparatus includes: a controller; and a plurality of storage drives, wherein the controller issues a read command for specifying a value associated with an error correction mode to a first storage drive of the plurality of storage drives, the first storage drive selects the error correction mode associated with the value specified by the read command from a plurality of error correction modes, the plurality of error correction modes include a first error correction mode and a second error correction mode with a higher correcting capability and a longer maximum delay time than those of the first error correction mode, and the first storage drive executes a read of data from a storage medium in the selected error correction mode.

9. 发明申请

US20190205053A1 STORAGE APPARATUS AND DISTRIBUTED STORAGE SYSTEM 审中-公开
公开(公告)号：US20190205053A1
公开(公告)日：2019-07-04
申请号：US16325286
申请日：2017-01-12
申请人： HITACHI, LTD.
发明人： Shimpei NOMURA , Masahiro TSURUYA , Akifumi SUZUKI
IPC分类号： G06F3/06 , G06F9/50
摘要： When a logical capacity of a nonvolatile semiconductor memory is increased, after a logical capacity which is allocated to a RAID group but unused is released, the RAID group is reconfigured to include the released logical capacity and the increased logical capacity. When the logical capacity of the nonvolatile semiconductor memory is reduced, after the reduced logical capacity is released from the RAID group, the RAID group is reconfigured with the released logical capacity.

10. 发明申请

US20220253250A1 STORAGE SYSTEM INCLUDING STORAGE NODES TO DETERMINE CACHE ALLOCATIONS TO IMPLEMENT CACHE CONTROL 有权
公开(公告)号：US20220253250A1
公开(公告)日：2022-08-11
申请号：US17731626
申请日：2022-04-28
申请人： Hitachi, Ltd.
发明人： Masahiro TSURUYA , Tomohiro YOSHIHARA , Ryosuke TATSUMI , Shinsuke IZAWA
IPC分类号： G06F3/06 , G06F12/0895
摘要： To improve performance of a storage system. The storage system includes a plurality of storage nodes that communicate via a network. Each of the plurality of storage nodes includes one or more controllers. At least one controller in the controllers specifies at least two controllers that allocate a cache sub-area where write data is stored based on a controller that receives the write data from a host and a controller that processes the write date, and the cache sub-area is allocated in the specified controllers.

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