As other monks mention - your problem is you overwrite the array

  @cmdout = <DDDD>;
[download]

Will probably do what you want.

On a more general style point - I would suggest strongly that you use 3 argument open, instead of two arg, because interpolated variables are a good way to introduce bugs.

open ( my $dddd_fh, "|-", $BACKUPSTATE );
my @cmdout = <$dddd_fh>;
chomp(@cmdout);
print Dumper(@cmdout);
[download]