Description of enterprise high-availability switching

Enterprise's application scenario, basically can not be separated from the high availability, whether it is under the windows of the cluster software, or Linux under the heartbeat,keepalived, such as Aix under the hacmp.

-----------------------------quote old boy teacher instructions for high-availability switching------------------------------

Notes on enterprise High-availability switching:

1, high-availability switch is generally used for main fault backup automatic switching takeover, rapid replacement of the fault machine to provide services

2. After the standby machine takes over the service, it is best to solve by manual processing

3, no matter how well prepared, monitoring how smart, generally will not automatically switch the main library

4, manual to control, because failback is controllable, have time to prepare

5, and the beginning of the main hung, spare to replace the Lord to provide services, is sudden, uncontrolled

6, the important business is unable to switch back and forth automatically, the parameters of automatic switching is need to off

7, so for high-availability services, boot to start automatically, you need to follow up the specific business scenarios for analysis

This article is from the "Frozen vs watermelon" blog, so be sure to keep this source http://molewan.blog.51cto.com/287340/1893154

Description of enterprise high-availability switching