CentOS optimized for disk IO[JDB2 processes]

The CentOS JDB2 process is always covered with IO, after checking some information to know that the problem stems from the system bug, here to record the solution:

The disk with high IO will be remount with the following parameters.

Mount-t Ext4-o Remount,rw,barrier=0,commit=60,noatime,nodiratime/dev/mapper/volgroup00-lv_home/home

Ext.: http://blog.csdn.net/ttkuraki/article/details/50787469

You can also refer to the article on this link

http://blog.51cto.com/xujpxm/1674378

CentOS optimized for disk IO[JDB2 processes]