How to simulate linux server crash to test high availability cluster configuration?

How to kill a linux box?

# date ; echo 1 > /proc/sys/kernel/sysrq ; echo b > /proc/sysrq-trigger


This command just inform the kernel that the server crashed. So that the standby node can take over.

How to mount a cd in linux ?

[root@dev-hsbc-01a dev]# ls -l /dev/cdrom
lrwxrwxrwx. 1 root root 3 Mar 20 16:38 /dev/cdrom -> sr0

[root@dev-hsbc-01a dev]# mount /dev/sr0 /mnt/

[root@dev-hsbc-01a dev]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              39G  1.2G   36G   4% /
tmpfs                 1.9G     0  1.9G   0% /dev/shm
/dev/sda1             291M   37M  239M  14% /boot
/dev/sda3              20G  172M   19G   1% /crcrd
/dev/sr0              633M  633M     0 100% /mnt

How To Configure HP ILO - Integrated Lights Out (ILO) Step by Step

http://808techblog.com/2009/08/configure-hp-integrated-lights.html

after cofiguration using above steps,


How to access HP ILO ?

You can access ILO using http://192.168.5.5/  for the configuration done on this above document.