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公开(公告)号：US20240192848A1
公开(公告)日：2024-06-13
申请号：US18241347
申请日：2023-09-01
申请人： Hitachi, Ltd.
发明人： Tsukasa SHIBAYAMA , Kenta SATO , Akira DEGUCHI
IPC分类号： G06F3/06
CPC分类号： G06F3/0604 , G06F3/0655 , G06F3/0673
摘要： A management computer receives designation of an operation content and an operation target resource from a management user of a first type (managed or self). In a case where the operation target resource is a system resource managed by a management user of a second type (self or managed) and an operation according to the operation content for the operation target resource influences storage management by the management user of the second type, the management computer changes an authority of an operation regarding an influence for the management user of the second type to an authority not to influence an environment realized by construction including performing an operation according to the operation content for the operation target resource, and then performs the operation according to the operation content for the operation target resource.
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公开(公告)号：US20240126880A1
公开(公告)日：2024-04-18
申请号：US18119975
申请日：2023-03-10
申请人： Hitachi, Ltd.
发明人： Kazuei HIRONAKA , Akira DEGUCHI
IPC分类号： G06F21/56
CPC分类号： G06F21/566 , G06F2221/034
摘要： A storage device receives an access request specifying one of one or more LDEVs (one or more logical volumes provided to one or more hosts) from one host. In response to the access request, the storage device accesses a page allocated to an access destination area of the LDEV among a plurality of pages (plurality of logical storage areas that can be allocated to one or more LDEVs). The storage device or a storage device management system identifies, based on management information including information representing a write status characteristic for each of the plurality of pages, a mark target page as a low-write frequency page where a certain number or more of writes have occurred during a certain period of time and checks the presence or absence of a ransomware attack possibility that the number of the mark target pages is equal to or greater than a threshold.
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公开(公告)号：US20230350916A1
公开(公告)日：2023-11-02
申请号：US18206649
申请日：2023-06-07
申请人： Hitachi, Ltd.
发明人： Takaki MATSUSHITA , Yusuke YAMAGA , Akira DEGUCHI
CPC分类号： G06F16/27 , G06F3/0647 , G06F3/065
摘要： The operational performance and the I/O performance of Snapshots in a storage system are balanced. In a storage system, meta information of data appended to a log structured area is composed of meta information of a first tier and meta information of a second tier which correlate location information of data in a logical volume and location information of data in the log structured area. When creating a snapshot of the logical volume, a data management unit creates, in the same meta information area as a replication source, a replication of the meta information of the first tier stored in a plurality of meta information areas assigned to a plurality of controllers. A data control unit accesses the data of the log structured area from the logical volume, and accesses the data of the log structured area from the snapshot.
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公开(公告)号：US20230297265A1
公开(公告)日：2023-09-21
申请号：US17945730
申请日：2022-09-15
申请人： Hitachi, Ltd.
发明人： Hideyuki KOSEKI , Akira DEGUCHI , Masahiro ARAI
IPC分类号： G06F3/06
CPC分类号： G06F3/065 , G06F3/0683 , G06F3/0635 , G06F3/0604
摘要： An administrative terminal receives designation of generation target data and of a generation destination storage device and identifies data similar to the target data. The terminal calculates a first predicted time expected for transmitting the target data from a storage device holding the target data to the generation destination storage device, and a second predicted time expected to be required for a second transmission process of transmitting the similar data from an object storage service to the generation destination storage device and of transmitting difference data between the target data and the similar data from the storage device holding the target data to the generation destination storage device. If the second predicted time is shorter than the first predicted time, the administrative terminal performs the second transmission process to transmit the similar data and the difference data to the generation destination storage device to generate the generation target data therein.
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公开(公告)号：US20230205439A1
公开(公告)日：2023-06-29
申请号：US17945769
申请日：2022-09-15
申请人： Hitachi, Ltd.
IPC分类号： G06F3/06
CPC分类号： G06F3/0635 , G06F3/0647 , G06F3/0619 , G06F3/067
摘要： In an information processing system, a plurality of control units (control software) implemented in different storage nodes are managed as a redundancy group, one or more first logical units (SLUs) are associated with the redundancy group, and the plurality of control units included in the redundancy group include an active control unit that processes an input/output (IO) request with respect to the first logical unit, and a standby control unit that takes over the processing when the active control unit fails. A processor (configuration management unit) arranges at least one second logical unit (ALU) in the storage node in which the active control unit exists, and associates the second logical unit with the first logical unit controlled by the active control unit.
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公开(公告)号：US20220091790A1
公开(公告)日：2022-03-24
申请号：US17190145
申请日：2021-03-02
申请人： HITACHI, LTD.
发明人： Kenta SATO , Kazuei HIRONAKA , Akira DEGUCHI
IPC分类号： G06F3/06
摘要： A storage apparatus includes a processor and a memory. The processor provides a plurality of logical volumes each allowing input and output of data, and processes each data input to and output from a storage device via the logical volume. The processor acquires operational data associated with each of the plurality of logical volumes, and transmits the acquired operational data to a source of a operational data request. The processor adjusts, for each of the logical volumes, accuracy of the operational data to be acquired from each of the logical volumes, according to a status of each of the logical volumes.
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公开(公告)号：US20220035695A1
公开(公告)日：2022-02-03
申请号：US17172177
申请日：2021-02-10
申请人： Hitachi, Ltd.
发明人： Akihiro HARA , Akira DEGUCHI , Tsukasa SHIBAYAMA
IPC分类号： G06F11/07
摘要： A computer system includes at least one HCI node, and a high-order management infrastructure which is communicable with the HCI node, and acquires operation information of the HCI node for detecting abnormality in the computer unit. The HCI node generates an event notification table including a resource of the HCI node relevant to an event executed therein, and a type of influence of the event to the HCI node, and transmits the event notification table to the high-order management infrastructure. The operation information includes a load to the resource of the HCI node. The high-order management infrastructure detects abnormality using the operation information and the event notification table.
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公开(公告)号：US20200097204A1
公开(公告)日：2020-03-26
申请号：US16293711
申请日：2019-03-06
申请人： Hitachi, Ltd.
发明人： Kenta SATO , Akira DEGUCHI , Tomohiro KAWAGUCHI
摘要： According to one embodiment, a storage control method is provided in which a plurality of volumes to be processed by a storage control unit are distributed and evacuated in a normal storage control unit without recovering redundancy of the storage control unit having decreased redundancy, and the storage control unit itself having the decreased redundancy is deleted after the evacuating is completed, and thus reservation information processing resources for guaranteeing recoverability of the redundancy become unnecessary and use efficiency of a physical server is improved.
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公开(公告)号：US20190205044A1
公开(公告)日：2019-07-04
申请号：US16332079
申请日：2017-01-10
申请人： HITACHI, LTD.
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/06 , G06F3/064 , G06F3/0689
摘要： A method for restoring lost data due to a failure of a storage drive is provided, including: selecting a first logical area of a first storage drive that is failed; specifying a first logical area line that includes the first logical area and logical area blocks of a different storage drive and stores a data set having a redundant configuration capable of restoring lost internal data; selecting, from the first logical area line, one or more second logical areas to be accessed for restoring data of the first logical area; and for each of one or more second storage drives that provides the one or more second logical areas respectively, issuing a data storage information request inquiring whether valid data is stored after designating the second logical areas.
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公开(公告)号：US20190108157A1
公开(公告)日：2019-04-11
申请号：US16086297
申请日：2016-07-11
申请人： Hitachi, Ltd.
摘要： An information system connected to hosts and an information processing system manages a second ALU connected to the hosts via a second logical path, and second SLUs for receiving I/O requests from the hosts via the second logical path. A processor manages a first ALU connected to the hosts via a first logical path and first SLUs that receive I/O requests from the hosts via the first logical path, and builds up a first group including the first SLUs. A first SLU and a second SLU compose an HA pair, and the HA pair is provided to the hosts as one volume. The processor evaluates the state of the first logical path based on the pair state of the first SLU that composes the HA pair included in the first group so priorities with which the hosts issue I/Os to the first logical path can be determined.
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