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Wide-stripe disk array and storage method based on asymmetric hybrid disk mirroring

A technology of disk mirroring and disk array, which is applied to the generation of response errors, error detection of redundant data in calculations, input/output to record carriers, etc. It can solve the problem of high unit price and achieve low implementation cost and cost Reduce and improve the effect of reading and writing performance

Active Publication Date: 2018-06-05
南京道熵信息技术有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

MR-based SSDs and RRAM-based SSDs offer higher performance than SSDs but are more expensive per unit

Method used

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  • Wide-stripe disk array and storage method based on asymmetric hybrid disk mirroring
  • Wide-stripe disk array and storage method based on asymmetric hybrid disk mirroring
  • Wide-stripe disk array and storage method based on asymmetric hybrid disk mirroring

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Embodiment Construction

[0031] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0032] A wide-stripe disk array based on asymmetric hybrid disk mirroring disclosed in the embodiment of the present invention includes at least two physical storage pools, each physical storage pool is composed of the same storage medium, and the disk array contains at least two different storage media . Currently the most typical storage media are mechanical hard drives and solid state drives (flash memory, magnetoresistive memory or resistive memory). Among them, the mechanical hard disk uses ...

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Abstract

The present invention overcomes the limitations of the existing RAID technology on the storage medium and storage space of each sub-disk, and provides a high-performance and high-reliability wide-striped disk array based on asymmetric hybrid disk mirroring and a data storage method thereof. The disk array includes at least two physical storage pools, each physical storage pool is composed of the same storage medium, the disk array contains at least two different storage media, and the disks of at least two storage media are used to form a mirror disk in a mirroring manner, A plurality of mirror disks form a wide-stripe mirror group; the disk array also includes a controller connected to each physical storage pool for controlling data writing and reading. The data is stored in at least two physical storage pools, and the data is read from the physical storage pool with a faster reading speed.

Description

technical field [0001] The invention relates to a wide-strip disk array based on an asymmetric hybrid disk image and a data storage method of the disk array, belonging to the technical field of data storage and processing. Background technique [0002] Traditional high-performance and high-reliability computer storage systems rely on RAID, that is, Redundant Array of Inexpensive Disks. The Chinese abbreviation is Redundant Array of Inexpensive Disks. RAID is a combination of multiple independent hard disks (physical hard disks) in different ways to form a hard disk group (logical hard disk), thereby providing higher storage performance and data backup technology than a single hard disk. The different ways to form a disk array are called RAID levels (RAID Levels). The function of data backup is that once the user data is damaged, the damaged data can be recovered by using the backup information, thereby ensuring the security of the user data. From the user's point of view,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F11/14
Inventor 胡晓宇
Owner 南京道熵信息技术有限公司
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