[Linux-HA] External Stonith Plugin

[Andreas Mock]

Hi Dejan, hi all,

we're using HAv2 and the external stonith plugin 'ibmrsa' for some
time now in a productive environment.

Sadly 'ibmrsa' is not 'stable'. We use it with monitoring action every 300 seconds.
But time by time I get errors indicating unknown communication errors between
the IBMmpcli agent and the RSA-board.  I don't know why. This lead to complete
failure of the stonith resource about every three days. 
Besides of that IBMmpcli agent is using much CPU time.

That was the reason I decided to write a new implementation based on
telnet access to the RSA board. Some of you may remember several questions
of mine regarding stonith plugin.  :-) Another advantage of this is, that the
stonith plugin can be adapted simply for any kind of stonith device with
telnet access.

To give something back to the HA comunity I would like to offer this piece
of software. It's working stable for several days now in our environment, so that
I'm confident to offer a mature functionality.

If you're interested in having a look at it and probably accepting it for the
HA package I would upload it.

Best regards
Andreas Mock

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