Hitachi, Ltd.

Masanori Takada

Shuji Nakamura

Akira Yamamoto

Kentaro Shimada

Sadahiro Sugimoto

Hiroshi Hirayama

Akihiko Araki

Katsuya Tanaka

Makio Mizuno

Jun Kitahara

Naoya Okada

Yoshiaki Eguchi

Yasutomo Yamamoto

Tomohiro Kawaguchi

Yusuke Nonaka

Takayuki Fukatani

Masayuki Yamamoto

Yoshiki Kano

Hideaki Fukuda

Yoshihiro Yoshii

Nobuhiro Yokoi

Shintaro Kudo

Norio Simozono

Satoshi Kaneko

Akira Fujibayashi

Masahiro Arai

Masakuni Agetsuma

Mitsuo Hayasaka

Nagamasa Mizushima

Tomohiro Yoshihara

Takanobu Suzuki

Nobuyuki Minowa

Sachie Tajima

Hajime Mori

Akiyoshi Tsuchiya

Hiroshi Nakagoe

Katsumi Ouchi

Kazushi Nakagawa

Naoki Moritoki

Kazumasa Matsubara

Miho Kobayashi

Susumu Tsuruta

Naruki Kurata

Hiroyuki Osaki

Masato Shimizu

Mitsuo Date

Hiroshi Kanayama

A protocol chip transmits the request from the host apparatus to a first processor through a first address translation unit. A first processor transmits a response to the request from the host apparatus, to the protocol chip through the first address translation unit. When the first processor stops processing, an instruction to transmit the request from the host apparatus to a second processor is transmitted to the protocol chip. When receiving the instruction to transmit the request from the host apparatus to the second processor, the protocol chip transmits the request from the host apparatus to the second processor through a second address translation unit. The second processor transmits the response to the request from the host apparatus to the protocol chip through the second address translation unit.

Storage system

Example implementations described herein are directed to searching ML models to facilitate IO load prediction. Even if there is no existing ML model applicable to the underlying container, example implementations described herein obtain the ML model for the nearest container. Through such example implementations, the underlying systems can reduce the total ML models maintained for the prediction of IO load and can enhance ML models with enough learning data for each ML model.

Method of selecting a machine learning model for performance prediction based on versioning information

Example implementations described herein are directed to systems and methods to accelerating the time to identify the latest snapshot that is not infected by malware and swap the snapshot for an underlying volume for a host computer without needing to communicate with the storage administrator of the storage system. In example implementations described herein, an iterative process is utilized to traverse snapshots through a storage plug-in application until such a snapshot is identified. Through the example implementations described herein, such snapshots can be identified quickly in comparison to manual selection.

Accelerating method of snapshot investigation for rollback from ransomware

Embodiments described herein are directed to a cloud-bursting system utilizing optimal resources on a remote site within the range of requirements of business operation ordered by a user. Embodiments can involve receiving user requirements for the copy operation of a storage volume, and for a determination that the copy operation of the storage volume meets the user requirements, executing the copy operation on the storage volume from the first storage system to the second storage system; and continuously adjusting the end-point to facilitate a copy speed of the storage volume that meets the user requirements.

Resource allocation optimization for cloud bursting use case

Example implementations described herein are directed to systems and methods to create authorization rules and configurations automatically for each microservice, each of which rules are built from the front-end use case. The example implementations involve a public facing environment on a public cloud system, and a test environment deployed on a private cloud system that is isolated from the public cloud system that mirrors the public cloud system functionality for testing deployment of applications.

System and method of microservice-based application deployment with automating authorization configuration

Example implementations described herein are directed to management of a first storage system for an on-premise system and a second storage system for a public cloud system. Such example implementations can involve, responsive to an update to one or more of a plurality of snapshot volumes in the first storage system, updating first shared page information stored in the first storage system according to the update to the one or more snapshot volumes, the first shared page information indicative of pages shared between the plurality of snapshot volumes in the first storage system; transmitting instructions to the second storage system to copy the updates to the one or more snapshot volumes from the first shared page information to a second shared page information stored in the second storage system; and executing read or write operations made to the second storage system based on the second shared page information.

Caching meihod for hybrid cloud storage running dev/test on public cloud

A computing system that can maintain reliability required of a storage program while causing the storage program to operate on an operating system (OS) is provided. A processor of the computing system executes an OS controlling a hardware device and a storage program operating on the OS and using the hardware device via the OS. The OS identifies an error status of the hardware device when receiving a notification of an error that has occurred to the hardware device, and notifies the storage program that operates on the OS of the error status when the error status satisfies a predetermined condition. The storage program determines error handling on the hardware device on the basis of the error status, and requests the OS to perform the determined error handling. The OS performs the determined error handling on the hardware device.

Computing system and error handling method for computing system

Computer components, such as processors and storage devices, provide a performance and consumes an electric power within a range of an upper limit performance and an upper limit power consumption of a power state set for the component among a plurality of power states corresponding to a type of the component. A processor unit determines whether a budget power as a power consumption permitted for a target computer is equal to or more than a power consumption of the target computer or not. When the determination result is false, for at least one component of the target computer, the processor unit selects a power state based on at least one of a priority of an operation using the component and a data characteristic corresponding to the component among a plurality of types of power states corresponding to a type of the component as power state of the component.

Computer system and electric power control method for computer system

High reliability and high performance of a storage device formed of a Dual port NVMe SSD are achieved while preventing the risk of destruction of data. The storage device includes a main memory that belongs to each of two or more clusters and that stores data related to an IO request; and a processor belonging to each of the clusters controlling accesses to the main memory. The main memory includes a first region where writing from the memory drive is permitted and a second region where the writing is prohibited. The processor selects the first region as a transfer destination related to the IO request from the memory drive when the IO request is a first request, and selects the second region as the transfer destination related to the IO request from the memory drive while permitting writing to the second region when the IO request is a second request.

Storage device

A computer system including: a first computer including a first processor and a first nonvolatile memory; and a second computer including a second processor and a second nonvolatile memory in which the second computer is connected to the first computer. The first computer includes a redundant hardware that, on receiving a write command from the first processor, writes the write data of the write command both into the first nonvolatile memory and into the second computer.

Computer system and method for redundantizing nonvolatile memory

A storage system has a cluster structure in which a node is connected with a different node, the node having a volatile memory for storing first update data from a host and a first non-volatile memory for storing second copy data of second update data from the host to the different node, and having a copy management processing unit for storing first copy data of the first update data into a second non-volatile memory of the different node, and a storage service processing unit for transmitting, to the host, a response with respect to an update request of the first update data in response to the storage of the first copy data of the first update data by the copy management processing unit into the second non-volatile memory of the different node.

Storage system and control method therefor

When mounting hardware which is coupled to another portion by a plurality of paths with different applications, despite the hardware being a single device, and a failure occurs in any of the paths, there is a risk that the failure may propagate to other components unless the other paths are also blocked. In order to solve the problem described above, in a storage apparatus to which a device coupled by a plurality of coupling paths with different applications can be mounted, the present invention determines a block range at the time of an occurrence of a failure to be a device and a plurality of coupling paths coupled to the device, manages the block range, and upon an occurrence of a failure, executes failure handling which involves blocking an appropriate block range determined in advance by referring to the information.

Computer system and control method therefor for handling path failure

The storage system has one or more storage drives, and one or more controllers for receiving processing requests from a superior device, wherein each of the one or more controllers has a processor for executing the processing request and an accelerator, and the accelerator has multiple internal data memories and an internal control memory, wherein if the processing request is a read I/O request, it stores a control information regarding the request to the internal control memory, and reads data being the target of the relevant request from at least one storage drive out of the multiple storage drives, which is temporarily stored in the one or more said internal data memories, and transferred sequentially in order from the internal data memory already storing data to the superior device.

Storage system with read request accelerator having dynamic internal data memory allocation

In a computer system having a storage controller that receives a read request or a write request, a processor is configured to send to an interface device either a read-support indication, which is an indication to execute either all or a portion of read processing for read-data of the read request, or a write-support indication, which is an indication for either all or a portion of write processing for write-data of the write request. Then, the interface device, in accordance with either the read-support indication or the write-support indication, is configured to execute either all or a portion of the read processing for the read-data, or all or a portion of the write processing for the write-data, and to send to a host computer either a first response to the effect that the read processing has been completed, or a second response that the write processing has been completed.

Computer system

In a storage subsystem adopting HDD and PCIe-SSD as storage media, as a method for preventing the complication of having to select a removal method while considering the drive type inserted to the drive slot since the method for removing the HDD differs from the method for removing the PCIe-SSD according to the prior art, the present invention provides an LED for displaying whether it is possible to remove the HDD or the PCIe-SSD inserted to the slot of a drive enclosure, wherein when an HDD is inserted in the drive slot, the LED displays that removal of the HDD is enabled when power supply to the HDD is stopped, and when PCIe-SSD is inserted to the drive slot, the LED displays that removal of the SSD is enabled when Downstream Port Containment (DPC) is triggered in the downstream port of the PCIe switch to which the SSD is connected.

Storage device employing PCI-express connection solid-state drive

Growing community of inventors

Yokohama, Japan

Masanori Takada