Set so that the kdump can be used to gather crash dumps if a system panic occurs in a master server.
This must be done on both the primary master server and the secondary master server in order to build a master server replicated configuration.
Use the runlevel command to check the current run level.
Example
In the following example, the current run level is 3.
# /sbin/runlevel <Enter> N 3
Use the chkconfig command to check the kdump usability status.
Example
In the following example, the current run level 3 kdump is off.
# /sbin/chkconfig --list kdump <Enter> kdump 0:off 1:off 2:off 3:off 4:off 5:off 6:off
If kdump is off at the current run level, use the chkconfig command to switch it on, then use the service command to start kdump.
# /sbin/chkconfig kdump on <Enter> # /sbin/service kdump start <Enter>
Point
This setting is not required when installing the master server on a virtual environment.
