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Computer realizing high-speed access and data protection of storage device, computer system, and I/O request processing method

US8935448B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8935448-B2
Application numberUS-201213807410-A
CountryUS
Kind codeB2
Filing dateDec 13, 2012
Priority dateDec 13, 2012
Publication dateJan 13, 2015
Grant dateJan 13, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

In a computer, a logical partition for calculation in which an OS and an application operate and a logical partition for storage for providing a storage function are constructed. In the logical partition for calculation, a device corresponding to a storage device is provided, while the logical partition for storage provides a volume. A memory space that can be shared by the both logical partitions is prepared, and management information describing a sorting destination or a sorting method of an I/O request issued by an application is provided in the memory. If the logical partition for calculation receives an I/O request from the application, the partition refers to the management information and sorts the I/O request to the storage device or the logical partition for storage. The logical partition for storage processes the received I/O request by the storage function and transmits the result to the storage device.

First claim

Opening claim text (preview).

The invention claimed is: 1. A computer system comprising: a first node, a second node and storage devices coupled to each of the first node and the second nodes, wherein the storage devices provide RAID (Redundant Array Inexpensive Disk) areas in which data is stored with RAID configuration and a Raw area which is accessed by a first processor and by a second processor directly and in which data is stored without RAID configuration, wherein the first node includes a first pro…

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Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8935448B2 cover?
In a computer, a logical partition for calculation in which an OS and an application operate and a logical partition for storage for providing a storage function are constructed. In the logical partition for calculation, a device corresponding to a storage device is provided, while the logical partition for storage provides a volume. A memory space that can be shared by the both logical partiti…
Who is the assignee on this patent?
Hitachi Ltd
What technology area does this patent fall under?
Primary CPC classification G06F3/0613. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).