Company uses DB2 + HADR program.
Since the switch to the database 2 database network between the master and slave flash, resulting in the original machine 2 HARD whole system because they can not communicate with each other, become two independent entities,
2 machines are judging each other and their failure as the main library started, leading to the depletion of resources, failed to start. That split brain problem, then the current focus on solving the problem, find a good article, recording learning.
Split brain discuss issues of high availability solutions (forward)
https://czmmiao.iteye.com/blog/1180851