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blocks:server:dell:start [2019-10-09 08:10]
mattias created 		blocks:server:dell:start [2019-10-09 08:20] (current)
mattias [Hardware Watchdog]
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 =====Hardware Watchdog=====  =====Hardware Watchdog===== 
-  +
 The hardware watchdog is a very efficient recovery method in the unlikely event the computer experience interference that makes the system instable and freezes.    The hardware watchdog is a very efficient recovery method in the unlikely event the computer experience interference that makes the system instable and freezes.   
 Follow these steps to enable the watchdog handled from Linux systemd.   Follow these steps to enable the watchdog handled from Linux systemd.  
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 Restart the server.  Restart the server. 
 To test, it is possible to freeze the kernel using the following method.   To test, it is possible to freeze the kernel using the following method.  
-(This method has risks, make sure there is backups available before doing trying this. Don’t do this in a production environment!!!)  + 
-In the terminal as pixi-admin uses. +:!: This method can cause issues, make sure there is backups available before trying this. Don’t do this in a production environment :!: 
 + 
 +In the terminal as pixi-admin user, type:
 <code> sudo -s </code>   <code> sudo -s </code>  
 Sets user as root.  Sets user as root. 
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 Enables all sysrq.  Enables all sysrq. 
 <code>  echo c > /proc/sysrq-trigger </code>  <code>  echo c > /proc/sysrq-trigger </code> 
-Creates a “kernel-panic” that halts the system. A secondary recover action counter starts at 255 seconds and when countdown = 0 the hardware will restart. +Creates a “kernel-panic” that halts the system. A secondary recover action counter starts at 255 seconds and when countdown = 0 the hardware should restart.