While choroba's solution is very clever and efficient, it might be daunting to someone who's new to Perl. You might feel more comfortable with something that works in smaller steps, like this: 
my @crit = grep {$_->{severity} eq 'critical'} @records;
my @noncrit = grep {$_->{severity} ne 'critical'} @records;
@crit = sort {$b->{event_age} <=> $a->{event_age}} @crit;
@noncrit = sort {$a->{event_age} <=> $b->{event_age}} @noncrit;
@records = (@crit, @noncrit);

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In reply to Re: Two sort in single Array set by Anonymous Monk
in thread Two sort in single Array set by snehit.ar

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