DOKK / manpages / debian 10 / fence-agents / fence_rcd_serial.8.en
FENCE_AGENT(8) System Manager's Manual FENCE_AGENT(8)

fence_rcd_serial - rcd_serial fence agent

fence_rcd_serial operates a serial cable that toggles a reset of an opposing server using the reset switch on its motherboard. The cable itself is simple with no power, network or moving parts. An example of the cable is available here: https://smcleod.net/rcd-stonith/ and the circuit design is available in the fence-agents src as SVG

fence_rcd_serial accepts options on the command line as well as from stdin. Fenced sends parameters through stdin when it execs the agent. fence_rcd_serial can be run by itself with command line options. This is useful for testing and for turning outlets on or off from scripts.

Vendor URL: https://github.com/sammcj/fence_rcd_serial

Fencing action (Default Value: reboot)
Method to fence (onoff|cycle) (Default Value: cycle)
Port of the serial device (Default Value: /dev/ttyS0)
Disable logging to stderr. Does not affect --verbose or --debug-file or logging to syslog.
Verbose mode
Write debug information to given file
Display version information and exit
Display help and exit
Wait X seconds before fencing is started (Default Value: 0)
Wait X seconds for cmd prompt after login (Default Value: 5)
Test X seconds for status change after ON/OFF (Default Value: 20)
Wait X seconds after issuing ON/OFF (Default Value: 2)
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
Count of attempts to retry power on (Default Value: 1)

Reboot machine.
Check the health of fence device
Display the XML metadata describing this resource.

The operational behavior of this is not known.
Validate if all required parameters are entered.

Fencing action (Default Value: reboot)
Method to fence (onoff|cycle) (Default Value: cycle)
Port of the serial device (Default Value: /dev/ttyS0)
Disable logging to stderr. Does not affect --verbose or --debug-file or logging to syslog.
Verbose mode
Write debug information to given file Obsoletes: debug
Display version information and exit
Display help and exit
Wait X seconds before fencing is started (Default Value: 0)
Wait X seconds for cmd prompt after login (Default Value: 5)
Test X seconds for status change after ON/OFF (Default Value: 20)
Wait X seconds after issuing ON/OFF (Default Value: 2)
Wait X seconds for cmd prompt after issuing command (Default Value: 3)
Count of attempts to retry power on (Default Value: 1)
2009-10-20 fence_rcd_serial (Fence Agent)