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Storage interaction device and storage system based on ceph

An interactive device and one-to-one correspondence technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as data out-of-sync, system error reporting, RBD volume unknown, etc., to improve reliability Effect

Inactive Publication Date: 2017-03-22
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if two clients access RBD volume 1 for operations (such as virtual machine migration, reading and writing, etc.) at the same time, and the data sent by client 1 and client 2 is inconsistent, it will cause RBD cache1 and RBD cache2 The data in the RBD cache is not synchronized, so that the RBD volume does not know which data in the RBD cache should be used, which causes the system to report an error

Method used

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  • Storage interaction device and storage system based on ceph
  • Storage interaction device and storage system based on ceph
  • Storage interaction device and storage system based on ceph

Examples

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Embodiment Construction

[0023] The core of the present invention is to provide a ceph-based storage interaction device, which avoids the problem that data is not synchronized and reports an error when multiple clients access an RBD volume through different RBD caches at the same time, and has high reliability; another core of the present invention It is to provide a ceph-based storage system including the above-mentioned storage interaction device.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art with...

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Abstract

The invention discloses a storage interaction device based on ceph. The storage interaction device comprises a RBD (RADOS (Reliable Autonomous Distributed Object Storage) Block Device) roll and a RBD cache which is correspondingly arranged with the RBD roll, wherein the RBD cache is used for accessing the RBD roll according to a plurality of received access requests sent from a plurality of user sides, and carrying out optimization processing on an access operation; data obtained after the RBD roll is accessed is returned to a corresponding client side. By use of the storage interaction device, a problem that an error is reported since the data is not synchronous when a plurality of client sides simultaneously access one RBD roll through different RBD caches is avoided, and reliability is high. The invention also discloses a storage system based on the ceph, and comprises comprises a plurality of above storage interaction devices, and unnecessary details are not given here.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a ceph-based storage interaction device. The invention also relates to a ceph-based storage system. Background technique [0002] Ceph is a unified and distributed storage system designed based on excellent performance, reliability and scalability. The bottom layer of Ceph is RADOS (reliable autonomous distributed object storage, distributed object storage system). RADOS can virtualize physical storage devices into RBD (RADOS block device) pools, and divide the RBD pool into several RBD volumes for data storage according to customization. [0003] When the RBD volume exchanges data with the client, it needs to pass through the target (target) layer, and use the kernel module or librbd as an interface, wherein the kernel module is in the kernel state, and librbd is in the user state. Since librbd cannot use the kernel page cache, librbd has its own user-mode cache called "R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0614G06F3/0629G06F3/0644G06F3/067
Inventor 刘斌
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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