my $lnxsrvrs = "@mylnxsrvrs";
This will assign to $lnxsrvrs the number of elements of the @mylnxsrvrs array.

Actually, it won't.

Since @mylnxsrvrs is in double quotes, the contents of the array are concatenated and stringified, and this string is assigned to $lnxsrvrs.

Consider:

my @array = ( qw/ un deux trois / );
my $count = "@array";
print $count;
[download]

Output:

How the OP (thinks they) got an output of 1 remains a mystery...