update check_linux_raid to take in consideration resync status and rise up a warning alert

contrib/check_linux_raid.pl

@@ -50,6 +50,7 @@ my $code = "UNKNOWN";
 my $msg = "";
 my %status;
 my %recovery;
+my %resyncing;
 my %finish;
 my %active;
 my %devices;
@@ -65,6 +66,10 @@ while(defined $nextdev){
 				$recovery{$device} = $1;
 				($finish{$device}) = /finish=(.*?min)/;
 				$device=undef;
+            } elsif (/resync =\s+(.*?)\s/) {
+                $resyncing{$device} = $1;
+                ($finish{$device}) = /finish=(.*?min)/;
+                $device=undef;
 			} elsif (/^\s*$/) {
 				$device=undef;
 			}
@@ -95,8 +100,14 @@ foreach my $k (sort keys %devices){
 			$code = max_state($code, "CRITICAL");
 		}
 	} elsif ($status{$k} =~ /U+/) {
-		$msg .= sprintf " %s status=%s.", $devices{$k}, $status{$k};
-		$code = max_state($code, "OK");
+        if (defined $resyncing{$k}) {
+            $msg .= sprintf " %s status=%s, resync=%s, finish=%s.",
+                $devices{$k}, $status{$k}, $resyncing{$k}, $finish{$k};
+            $code = max_state($code, "WARNING");
+        } else {
+            $msg .= sprintf " %s status=%s.", $devices{$k}, $status{$k};
+            $code = max_state($code, "OK");
+        }
 	} else {
 		if ($active{$k}) {
 			$msg .= sprintf " %s active with no status information.",