In AIX there is a feature to remote reboot the server if its hang or doesn’t respond to any command that you enter.
It is a useful feature if you doing troubleshooting from remote using console server. Remote reboot facility require native serial port. Two attributes that control the operation is reboot_enable and reboot_string
reboot_enable has three value as below
no - Indicates remote reboot is disabled
reboot - Indicates remote reboot is enabled
dump - Indicates remote reboot is enabled, and prior to rebooting a system dump will be taken on the primary dump device.
When the port receive the reboot string a “>” is transmit and the system is ready to reboot. Follow by confirmation by pressing number 1 the system will be rebooted. To abort the process just key in other character other than 1.
To enable remote reboot facility you can use either SMITTY or command line. From SMITTY select System Environments -> Manage Remote Reboot Facility. In this menu you can configure which tty to enable and value for reboot string. Maximum length for reboot string is 16 character.
From command line you can use mkdev or chdev to enable remote reboot.
This example will enable tty1 to receive reboot string with h4rdreb00T as the value.
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Comment by Akak Red — September 22, 2006 @ 1:04 pm
napa Red Mummy is not in yr link?
weii….
Comment by Akak Red — October 7, 2006 @ 5:53 pm
I didn’t know about this trick. Cool tips bro. Thanks for sharing.
Comment by .fahmie — September 14, 2008 @ 4:02 am