-Fix bug where iSCSI would make increasingly small disks for a noderange

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1966 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/iscsi.pm

@@ -114,6 +114,7 @@ sub process_request {
          %rsp=(name=>[$node]);
          $lunsize -= 1;
          my $rc = system("dd if=/dev/zero of=$fileloc bs=1M count=1 seek=$lunsize");
+         $lunsize += 1;
          if ($rc) {
             $rsp{error}=["dd process exited with return code $rc"];
             $rsp{errorcode} = [1];