I. Introduction to the experiment
Experimental purpose:
knowledge reserve:
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2. Related downloads
1. Download the mirror file
This image file is of VDI type,
Tag: preparation
Authenticate dual thermal backup system with HeartBeat + Monit
First, use background
The project needs to realize the function of automatic switchover between main and standby dual heat to ensure that the system runs continuously 7*24 hours; now there is
HP drive array “Preparation Reconstruction” (RAID5)
We have a ProLiant server with a Smart Array P440ar controller.
Due to about three weeks, the “do not remove” instructions on some SAS drives The light is on. Maybe after a power failure.
1. Big Data Cluster Environment Preparation
1. Three virtual machines turn off the firewall Execute the following commands on three machines (executed by the root user)
service iptables stop
chkconfig iptables off
vim /etc/