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公开(公告)号：US12061528B2
公开(公告)日：2024-08-13
申请号：US17941906
申请日：2022-09-09
Applicant: Hitachi, Ltd.
Inventor： Yoshinori Ohira , Takahiro Yamamoto , Hiroto Ebara
CPC classification number: G06F11/1666 , G06F2201/84
Abstract: A storage system includes one or more storage units, and a calculator. Each of the one or more storage units has plural physical storage devices, and a processor. The calculator has a controller that processes data inputted to and outputted from the storage unit by the processor. The storage system subjects the data to redundancy and stores the redundant data, and when a failure in which the data related to a read request cannot be read from one of the physical storage devices has occurred, reads the data from the readable physical storage device, recovers the data related to the read request, and transmits the recovered data to a request source of the read request. A process for recovering the data related to the read request from the read data can be selectively executed by the controller of the calculator and the processor of the storage unit.
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Patent Agency Ranking
公开(公告)号：US11907746B2
公开(公告)日：2024-02-20
申请号：US17186850
申请日：2021-02-26
Applicant: Hitachi, Ltd.
Inventor： Akira Yamamoto , Hiroto Ebara , Takaki Nakamura , Yoshinori Ohira
CPC classification number: G06F9/45558 , G06F3/0604 , G06F3/067 , G06F3/0631 , G06F3/0664 , G06F3/0689 , G06F9/30047 , G06F2009/4557 , G06F2009/45595
Abstract: A compound storage system including: a storage box having a plurality of storage devices; and a plurality of servers capable of executing one or more virtual machines. The storage box stores a logical volume. The virtual machines executable by the server include an application VM and a controller VM. When a predetermined situation occurs in which an application VM of a migration source server is migrated to a predetermined migration destination server, at least one processor of the one or more servers in the compound storage system migrates the application VM to the migration destination server, and migrates a control right of a logical volume used by the application VM to a controller VM of the migration destination server.
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公开(公告)号：US11836391B2
公开(公告)日：2023-12-05
申请号：US17692269
申请日：2022-03-11
Applicant: Hitachi, Ltd.
Inventor： Hiroto Ebara , Akira Yamamoto , Yoshinori Ohira , Masakuni Agetsuma , Makio Mizuno , Takahiro Yamamoto
IPC: G06F3/06
CPC classification number: G06F3/067 , G06F3/0604 , G06F3/0655
Abstract: A distributed storage system includes one or a plurality of storage units including a plurality of physical storage devices, and a plurality of computers connected to the one or plurality of storage units via a communication network. When receiving a write request for a logical volume, the computer writes write data corresponding to the write request and redundant data for making the write data redundant in a plurality of physical storage devices of the storage unit in a distributed manner, and collectively controls writing of a journal of write data for managing a write history of the write data and a journal of redundant data for managing a write history of the redundant data.
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公开(公告)号：US20230315892A1
公开(公告)日：2023-10-05
申请号：US18331359
申请日：2023-06-08
Applicant: Hitachi, Ltd.
Inventor： Takaki NAKAMURA , Takahiro Yamamoto , Hideo Saito , Keisuke Matsumoto , Hiroto Ebara , Naruki Kurata
IPC: G06F21/62
CPC classification number: G06F21/6218
Abstract: An object of the invention is to appropriately separate an available cluster for each user in a storage system configured by using a plurality of clusters each of which is an aggregate of nodes. A computer system includes a plurality of K8s clusters each configured by one or a plurality of K8s nodes, a storage that provides a volume, and a tenant management unit that manages the plurality of the K8s clusters and the storage. The tenant management unit creates, in the storage, a plurality of tenants respectively corresponding to the plurality of the K8s clusters. The storage, for each of the plurality of the K8s clusters, permits access from the K8s cluster to a tenant corresponding to the K8s cluster and prohibits access from the K8s cluster to a tenant not corresponding to the K8s cluster.
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公开(公告)号：US11544005B2
公开(公告)日：2023-01-03
申请号：US17017944
申请日：2020-09-11
Applicant: Hitachi, Ltd.
Inventor： Takahiro Yamamoto , Hiroto Ebara , Takeru Chiba , Yoshinori Ohira , Masakuni Agetsuma , Mikio Fukuoka
Abstract: In a storage system including a plurality of nodes that provide a storage area and a drive that physically stores data, a parity group is configured with a plurality of data including user data stored in the storage area and redundant data for protecting the user data, a plurality of data in the parity group are stored in a storage area within one predetermined range across a plurality of nodes, and processing for dividing the predetermined range or processing for merging a plurality of predetermined ranges is performed based on a state of the predetermined range.
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公开(公告)号：US10891166B2
公开(公告)日：2021-01-12
申请号：US16298013
申请日：2019-03-11
Applicant: Hitachi, Ltd.
Inventor： Tsukasa Shibayama , Hiroto Ebara , Akiyoshi Tsuchiya , Tomohiro Kawaguchi
Abstract: According to one embodiment, a storage system includes a representative node and a plurality of general nodes including a plurality of resources. Each of the general nodes stores resource status information indicating respective statuses of the plurality of resources in a first storage unit thereof. The representative node stores resource status information collected from the plurality of general nodes in a second storage unit thereof, decides whether to acquire the resource status information from the first storage unit of the general node or to acquire the resource status information from the second storage unit based on a received request, and transmits the resource status information acquired from a decided acquisition destination to an issuing source of the request.
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