# underlying real disks, so add fake devices for them
foreach my $twdev (keys %tcount) {
next if (!-r $twdev.$tcount{$twdev});
- my $count = &count_subdisks($d, "3ware",
+ my $count = &count_3ware_subdisks($d, $tcount{$twdev})
+ ||
+ &count_subdisks($d, "3ware",
$twdev.$tcount{$twdev});
next if (!$count);
for(my $i=0; $i<$count; $i++) {
$a->{'subdisk'} <=> $b->{'subdisk'} } @rv;
}
+=head2 count_3ware_subdisks(&drive, number)
+
+Returns the number of underlying hard drives in a 3ware device, or undef
+if we can't work this out.
+
+=cut
+sub count_3ware_subdisks
+{
+local ($d, $n) = @_;
+local $out = &backquote_command("tw_cli info c$n");
+return undef if ($?);
+local $max_disk;
+foreach my $l (split(/\r?\n/, $out)) {
+ if ($l =~ /^p(\d+)\s+/ && $1 >= $max_disk) {
+ $max_disk = $1;
+ }
+ }
+return $max_disk;
+}
+
=head2 count_subdisks(&drive, type, [device])
Returns the number of sub-disks for a hardware RAID device, by calling