I've worked with SunCluster, MC ServiceGuard and Veritas Clusters.
All three allow/require scripting - and that can be done in Perl
as easily as in any other language. Some of the Veritas software
is actually written in Perl. I remember doing a Veritas training
and we wanted to do something that wasn't supported (a postshutdown
hook I think). I impressed the trainer by hacking the Veritas software
and adding the feature we wanted - just 2 lines of Perl.
Abigail
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