diff --git a/perl-xCAT/xCAT/data/discinfo.pm b/perl-xCAT/xCAT/data/discinfo.pm
index 7d8b10976..789388836 100644
--- a/perl-xCAT/xCAT/data/discinfo.pm
+++ b/perl-xCAT/xCAT/data/discinfo.pm
@@ -51,7 +51,10 @@ require Exporter;
 		 "1339641244.734735" => "rhels6.3", #ppc64
                  "1339640147.274118" => "rhels6.3", #x86_64
                  "1339638991.532890" => "rhels6.3", #i386
-		 "1285193176.593806" => "rhelhpc6",
+		 "1285193176.593806" => "rhelhpc6", #x86_64
+		 "1305067719.718814" => "rhelhpc6.1",#x86_64				
+		 "1321545261.599847" => "rhelhpc6.2",#x86_64				
+		 "1339640148.070971" => "rhelhpc6.3",#x86_64				
                  "1194015916.783841" => "fedora8",
                  "1194015385.299901" => "fedora8",
                  "1210112435.291709" => "fedora9",