IO hang是什么意思

作者: dreamfly 分类: 服务器 发布时间: 2019-03-03 23:57



“北京时间2019年3月3日凌晨,华北2地域可用区C部分ECS服务器等实例出现IO HANG,经紧急排查处理后已全部恢复。目前我们已经全面排查其他地域及可用区,未发现此类情况。“


下面我们说下什么是IO HANG. IO HANG字面理解就是Input Output卡住了。其实就是磁盘出现了故障,导致数据无法写入读取。其实IO故障之前已经发生过很多起案件了。最出名的还是之前有个创业公司的数据在腾讯云丢失了,因为没有做容灾备份,所以这对于一个创业公司或者小公司打击是巨大的,可以说,这个公司的发展直接停止了,这个公司直接就面临倒闭的风险。



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