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1. 发明授权

US10915441B2 Storage system having non-volatile memory device 有权
公开(公告)号：US10915441B2
公开(公告)日：2021-02-09
申请号：US16495752
申请日：2017-08-23
申请人： HITACHI, LTD. , HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
发明人： Koshi Hoshino , Shigeo Homma , Junji Ogawa , Yoshinori Ohira
IPC分类号： G06F12/02 , G06F3/06 , G06F12/0868
摘要： An upper system of an NVM device transmits, to the NVM device, a write command that designates a logical address, the write command being associated with an expiration date corresponding to a data expiration date correlated with write target data. The NVM device correlates an expiration date correlated with the write command with a logical address specified from the write command. The NVM device writes pieces of data of which the remaining time which is the time to an expiration date belongs to the same remaining time range to the same physical storage area among the plurality of physical storage areas. The NVM device erases data from a physical storage area when the expiration dates of all pieces of data in the physical storage area have expired.

2. 发明授权

US11210214B2 Storage system and compression method of storing compressed data from storage controller physical address space to logical and physical address space of nonvolatile memory 有权
公开(公告)号：US11210214B2
公开(公告)日：2021-12-28
申请号：US16570143
申请日：2019-09-13
申请人： HITACHI, LTD. , HITACHI INFORMATION & TELECOMMUNICATION ENGINEERING, LTD.
发明人： Junji Ogawa , Shigeo Homma
IPC分类号： G06F12/02
摘要： A storage system including a storage controller for compressing a data from a host and a plurality of nonvolatile memory drives for writing the compressed data. The storage controller provides the host with a first logical address space as a logical storage area and includes a plurality of first physical address spaces corresponding to the first logical address space and manages storage areas of the plurality of nonvolatile memory drives. Each of the plurality of nonvolatile memory drives includes a second physical address space that manages a physical storage area of the nonvolatile memory and a second logical address space that corresponds to the second physical address space and to each of the plurality of first physical address spaces. The second logical address spaces and the first logical address space are managed with a common size and a common management size, and leading addresses are aligned with the management size.

3. 发明授权

US10459639B2 Storage unit and storage system that suppress performance degradation of the storage unit 有权
公开(公告)号：US10459639B2
公开(公告)日：2019-10-29
申请号：US15545743
申请日：2015-04-28
申请人： HITACHI, LTD.
发明人： Hideyuki Koseki , Shigeo Homma
IPC分类号： G06F11/00 , G06F3/06 , G06F11/10
摘要： A storage unit according to one aspect of the present invention comprises a storage controller and a plurality of storage devices. Each storage device has nonvolatile semiconductor memories serving as storage media. The controller of each storage device diagnoses the state of degradation of the nonvolatile semiconductor memories, and if one of the nonvolatile semiconductor memories is expected to be nearing end of life, then the controller copies the data stored in that degraded nonvolatile semiconductor memory to another nonvolatile semiconductor memory, and then performs shutdown processing for the degraded nonvolatile semiconductor memory, as well as storage capacity reduction processing.

4. 发明授权

US09189391B2 Storage system and data control method therefor 有权
标题翻译：存储系统及其数据控制方法
公开(公告)号：US09189391B2
公开(公告)日：2015-11-17
申请号：US14528039
申请日：2014-10-30
申请人： Hitachi, Ltd.
发明人： Yoshiyuki Noborikawa , Shigeo Homma
IPC分类号： G06F12/00 , G06F12/02 , G06F3/06 , G06F11/14
CPC分类号： G06F12/0246 , G06F3/0616 , G06F3/0652 , G06F3/0688 , G06F11/1448 , G06F2212/7202
摘要： Package controller of a flash package, upon receiving an update data write request with respect to a first logical storage area corresponding to a first LU that is treated as a backup target, manages a first physical storage area as a backup storage area in a state where pre-update data is maintained, allocates a second physical storage area to the first logical storage area, and writes the update data to the second physical storage area. The package controller, upon receiving an update data write request with respect to a second logical storage area corresponding to a second LU that is treated as a non-backup target, manages a third physical storage area allocated to the second logical storage area as an invalid storage area, and writes the update data to a fourth physical storage area newly allocated to the second logical storage area.
摘要翻译：闪存包的包控制器在接收到对应于被视为备份目标的第一LU的第一逻辑存储区域的更新数据写入请求时，将第一物理存储区域作为备份存储区域进行管理，维护更新前数据，将第二物理存储区域分配给第一逻辑存储区域，并将更新数据写入第二物理存储区域。包控制器在接收到对应于作为非备份目标的第二LU的第二逻辑存储区域的更新数据写入请求时，将分配给第二逻辑存储区域的第三物理存储区域管理为无效存储区域，并将更新数据写入新分配给第二逻辑存储区域的第四物理存储区域。

5. 发明授权

US11372755B2 Storage system 有权
公开(公告)号：US11372755B2
公开(公告)日：2022-06-28
申请号：US16931640
申请日：2020-07-17
申请人： HITACHI, LTD.
发明人： Hiroaki Akutsu , Akira Yamamoto , Shigeo Homma , Masanobu Yamamoto , Yoshinori Ohira
IPC分类号： G06F12/02 , G06F3/06 , G06F12/1009
摘要： A storage system monitors the first access frequency of occurrence which is the access frequency of occurrence from a host device during a first period, and the second access frequency of occurrence which is the access frequency of occurrence from a host device during a second period shorter than the first period. Along with performing data relocation among the tiers (levels) in the first period cycle based on the first access frequency of occurrence, the storage system performs a decision whether or not to perform a second relocation based on the first access frequency of occurrence and the second access frequency of occurrence, synchronously with access from a host device. Here the threshold value utilized in a decision on whether or not to perform the first relocation is different from the threshold value utilized in a decision on whether or not to perform the second relocation.

6. 发明授权

US09778986B2 Storage system 有权
公开(公告)号：US09778986B2
公开(公告)日：2017-10-03
申请号：US14426716
申请日：2014-03-28
申请人： Hitachi, Ltd.
发明人： Tomohiro Yoshihara , Akira Yamamoto , Shigeo Homma , Junji Ogawa
IPC分类号： G11C29/00 , G06F11/10 , G06F3/06
CPC分类号： G06F11/1076 , G06F3/0619 , G06F3/064 , G06F3/0688 , G06F3/0689
摘要： The storage system according to the present invention comprises a controller, and multiple storage device constituting a RAID group. When storing write data to multiple discontinuous areas within stripes of a storage device, the storage system transmits a new data transmission command containing information for specifying the multiple discontinuous areas and a write data to the storage device, and thereafter, receives an intermediate parity generated from multiple write data and data before update of the multiple write data from the storage device, and then transmits the received intermediate parity and an intermediate parity transmission command to the storage device storing the parity. Thereafter, a data commitment command containing information for specifying multiple discontinuous areas is transmitted to multiple storage devices, and the storage device storing the parity generates a parity after update from the received intermediate parity and a parity before update corresponding to the intermediate parity, and stores the parity after update in a storage media.

7. 发明申请

US20150227322A1 STORAGE APPARATUS AND STORAGE APPARATUS MIGRATION METHOD 有权
标题翻译：存储设备和存储设备移植方法
公开(公告)号：US20150227322A1
公开(公告)日：2015-08-13
申请号：US14426185
申请日：2012-12-13
申请人： Hitachi, Ltd.
发明人： Takashi Noda , Shigeo Homma , Tomohiro Kawaguchi , Hideo Saito , Kazuhide Sano , Shuji Kondo
IPC分类号： G06F3/06
CPC分类号： G06F3/0647 , G06F3/0608 , G06F3/065 , G06F3/0664 , G06F3/067 , G06F11/00 , G06F11/2074 , G06F11/2082 , G06F11/2089 , G06F17/30191 , G06F2201/855
摘要： A migration-destination primary storage apparatus (MD-PDKC) comprises a second PVOL and a second journal storage area storing a journal corresponding to write data for the second PVOL, and executes a data copy to the second PVOL from a first PVOL, which is in a migration-source primary storage apparatus (MS-PDKC) and forms a copy pair with an SVOL in a secondary storage apparatus (SDKC). After the data copy has been completed, the MD-PDKC acquires the latest write sequence information from the MS-PDKC, and upon receiving a write request for the second PVOL, writes the write-request write data to the second PVOL, creates a journal by using journal data corresponding to the write data and also by using update information showing write sequence information based on the acquired latest write sequence information, and writes the journal to the second journal storage area.
摘要翻译：移动目的地主存储装置（MD-PDKC）包括第二PVOL和存储对应于第二PVOL的写入数据的日志的第二日志存储区域，并且从第一PVOL执行到第二PVOL的数据拷贝，在迁移源主存储装置（MS-PDKC）中，并且在辅助存储装置（SDKC）中形成具有SVOL的副本对。在数据复制完成后，MD-PDKC从MS-PDKC获取最新的写入序列信息，并且在接收到第二个PVOL的写入请求后，将写入请求写入数据写入第二个PVOL，创建一个日志通过使用与写入数据相对应的日志数据，并且还通过使用基于所获取的最新写入顺序信息来显示写入序列信息的更新信息，并将该日志写入第二日志存储区域。

8. 发明申请

US20150052297A1 STORAGE SYSTEM AND DATA CONTROL METHOD THEREFOR 审中-公开
标题翻译：存储系统及其数据控制方法
公开(公告)号：US20150052297A1
公开(公告)日：2015-02-19
申请号：US14528039
申请日：2014-10-30
申请人： Hitachi, Ltd.
发明人： Yoshiyuki Noborikawa , Shigeo Homma
IPC分类号： G06F12/02
CPC分类号： G06F12/0246 , G06F3/0616 , G06F3/0652 , G06F3/0688 , G06F11/1448 , G06F2212/7202
摘要： Package controller of a flash package, upon receiving an update data write request with respect to a first logical storage area corresponding to a first LU that is treated as a backup target, manages a first physical storage area as a backup storage area in a state where pre-update data is maintained, allocates a second physical storage area to the first logical storage area, and writes the update data to the second physical storage area. The package controller, upon receiving an update data write request with respect to a second logical storage area corresponding to a second LU that is treated as a non-backup target, manages a third physical storage area allocated to the second logical storage area as an invalid storage area, and writes the update data to a fourth physical storage area newly allocated to the second logical storage area.
摘要翻译：闪存包的包控制器在接收到对应于被视为备份目标的第一LU的第一逻辑存储区域的更新数据写入请求时，将第一物理存储区域作为备份存储区域进行管理，维护更新前数据，将第二物理存储区域分配给第一逻辑存储区域，并将更新数据写入第二物理存储区域。包控制器在接收到对应于作为非备份目标的第二LU的第二逻辑存储区域的更新数据写入请求时，将分配给第二逻辑存储区域的第三物理存储区域管理为无效存储区域，并将更新数据写入新分配给第二逻辑存储区域的第四物理存储区域。

9. 发明授权

US08880830B1 Storage system 有权
标题翻译：存储系统
公开(公告)号：US08880830B1
公开(公告)日：2014-11-04
申请号：US14206096
申请日：2014-03-12
申请人： Hitachi, Ltd.
发明人： Hiroaki Akutsu , Akira Yamamoto , Shigeo Homma , Masanobu Yamamoto , Yoshinori Ohira
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F3/06 , G06F12/02
CPC分类号： G06F12/0246 , G06F3/0604 , G06F3/061 , G06F3/0647 , G06F3/0649 , G06F3/0662 , G06F3/0683 , G06F3/0685 , G06F12/1009 , G06F2003/0697 , G06F2212/7201
摘要： A storage system monitors the first access frequency of occurrence which is the access frequency of occurrence from a host device during a first period, and the second access frequency of occurrence which is the access frequency of occurrence from a host device during a second period shorter than the first period. Along with performing data relocation among the tiers (levels) in the first period cycle based on the first access frequency of occurrence, the storage system performs a decision whether or not to perform a second relocation based on the first access frequency of occurrence and the second access frequency of occurrence, synchronously with access from a host device. Here the threshold value utilized in a decision on whether or not to perform the first relocation is different from the threshold value utilized in a decision on whether or not to perform the second relocation.
摘要翻译：存储系统在第一时段期间监视来自主机设备的发生访问频率的发生的第一存取频率，以及在比第一时间段短的第二时段期间来自主机设备的发生访问频率的第二存取频率第一期。随着在第一周期周期中的层级（级别）之间执行数据重新定位，存储系统基于发生的第一访问频率来执行是否执行第二重定位的决定，并且第二访问频率与主机设备的访问同步发生存取频率。这里，在关于是否执行第一重定位的判定中使用的阈值不同于关于是否执行第二重定位的判定中使用的阈值。

10. 发明申请

US20140281064A1 COMPOUND STORAGE SYSTEM AND STORAGE CONTROL METHOD 有权
标题翻译：复合存储系统和存储控制方法
公开(公告)号：US20140281064A1
公开(公告)日：2014-09-18
申请号：US13980234
申请日：2013-03-18
申请人： Hitachi, Ltd.
发明人： Miho Imazaki , Shigeo Homma , Hiroaki Akutsu , Yoshiaki Eguchi , Akira Yamamoto , Junji Ogawa
IPC分类号： G06F13/20
CPC分类号： G06F3/0619 , G06F3/061 , G06F3/0631 , G06F3/0635 , G06F3/0647 , G06F3/0665 , G06F3/067 , G06F3/0689 , G06F13/20
摘要： A shared device unit, which comprises a storage device, is coupled to a plurality of storage systems. The shared device unit provides a plurality of storage areas, which are based on the storage device, to the plurality of storage systems. Each storage system stores allocation management information which comprises an ID of a storage area provided to thereof among the plurality of storage areas, and provides the storage area corresponded to the ID included in the allocation management information to the host computer coupled thereto among the plurality of host computers.
摘要翻译：包括存储设备的共享设备单元耦合到多个存储系统。共享设备单元向多个存储系统提供基于存储设备的多个存储区域。每个存储系统存储分配管理信息，其包括在多个存储区域中提供给其的存储区域的ID，并且将与分配管理信息中包括的ID相对应的存储区域提供给多个存储区域中耦合到其的主计算机主机

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