qcow2镜像检测及修复

PPT：《qcow2镜像检测及修复》

Copyright (c) 2016-2023 YOUPLUS

Author: YOUPLUS

qcow2-dump is a useful tool for checking and repairing damaged qcow2 image, it has some improvements compare with qemu-img check command (qcow2-dump has all functions which qemu-img check command has).

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基础：qcow2镜像格式及分配模式

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qcow2-dump -h/--help (工具的参数说明、功能介绍及现场演示)

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qcow2-dump工具的设计实现：

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检测性能：

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