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IO multi-path planning method and device in distributed network storage system

A distributed network and storage system technology, applied in the field of IO multi-path planning, can solve problems such as complex IO path planning, and achieve the effect of good load balancing characteristics

Active Publication Date: 2021-12-07
上海霄云信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When there are multiple logical volumes, multiple iSCSI gateways, and multiple iSCSI initiators (iSCSI Initiators) in the system, IO path planning becomes a more complicated issue

Method used

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  • IO multi-path planning method and device in distributed network storage system
  • IO multi-path planning method and device in distributed network storage system
  • IO multi-path planning method and device in distributed network storage system

Examples

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Embodiment Construction

[0057] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0058] In a typical configuration of the present application, the terminal and the equipment serving the network include one or more processors (CPUs), input / output interfaces, network interfaces and memory.

[0059] Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and / or nonvolatile memory such as read only memory (ROM) or flash RAM. Memory is an example of computer readable media.

[0060] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRA...

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PUM

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Abstract

The purpose of the present invention is to provide an IO multi-path planning method and device in a distributed network storage system, for any number and combination of iSCSI initiators (iSCSI initiators), iSCSI targets, and iSCSI gateways, including but not limited to One iSCSI initiator mounts multiple targets, multiple iSCSI initiators mount the same target, and multiple iSCSI initiators mount multiple targets. This method can ensure that the IO paths are evenly distributed on all iSCSI gateways. When the system state is determined, the selected IO path is determined. The method realizes automatic planning of IO paths of a large-scale distributed storage system, is efficient and reliable, and has good load balancing characteristics.

Description

technical field [0001] The invention relates to the field of computers, in particular to an IO multi-path planning method and equipment in a distributed network storage system. Background technique [0002] A distributed network storage system consists of storage servers and management servers (servers are also called nodes). Storage servers store data and provide external data access services. Multiple storage servers provide larger storage capacity, higher IO access performance, and realize fault tolerance: when some storage servers fail, business access will not be interrupted and data will not be lost. The management server monitors the status of the storage system to implement configuration management, and multiple management servers work together in a high-availability manner. At any time, one management server is the active management node, and the other management servers are standby management nodes. When the master management node fails, another standby managemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/12H04L12/803
CPCH04L67/1097H04L47/125H04L67/1004H04L61/5007
Inventor 李小勇
Owner 上海霄云信息科技有限公司
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