HA=高可用=？？？？

platinum

“高可用”，太抽象了，具体是什么意思呢？

crknoob

HA = High Availability，基本思想是要在各个环节上防止“单点失败”，你把它理解成“高可靠”就可以了。

nopalh

High availability (HA) is defined as the ability of a system to perform its function without interruption for an extended length of time. This functionality is
accomplished through special-purpose software and redundant system and network hardware. Technologies such as volume management, RAID, and journaling
filesystems provide the essential building blocks of any HA system.

呵呵，E文