Hitachi, Ltd.

Naruki Kurata

Tomohiro Kawaguchi

Nobukazu Kondo

Masanori Takada

Katsuto Sato

Disclosed herein is a technique to automatically re-bind applications and storage volumes during recovery from planned outage or platform failure and disaster recovery. Such implementations can involve managing volume management information that maps volume claim information with a logical volume identifier associated with persistent volume information; and for receipt of a request for a new volume, referencing the volume management information to retrieve an associated logical volume identifier and the persistent volume information based on the volume claim information associated with the request; and providing the retrieved persistent volume information to a volume provisioning function.

Data storage volume re-bind method

Example implementations described herein facilitate a drive unit to share physical mediums (e.g. solid state drives) among multiple storage controllers or storage nodes in a distributed storage system, while keeping them physically independent in a redundancy group to avoid single point of failure, by providing an interface to notify redundancy group to the drive unit.

Data-protection-aware capacity provisioning of shared external volume

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

A computer system includes a main memory, a lower class memory, and a secondary storage medium and executes an operating system, an in-memory computing program, and a prefetch optimizer program. The in-memory computing program writes processing target data including a plurality of data objects stored in the secondary storage medium into a plurality of continuous areas on a virtual memory space and executes a process while accessing the continuous area. When detecting that the operating system executes a class-in process triggered upon a page fault for a predetermined virtual page, the prefetch optimizer program acquires information of the continuous area from the in-memory computing program and directs the operating system to execute a class-in process for virtual pages included in the predetermined continuous area including the predetermined virtual page.

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San Jose, CA, United States of America

Naruki Kurata