docs: function _getVdExtDriveIdCatalog(nodeId, driveId, virtualDiskData, vendors){
          var match = driveId.virtualDisk.match(/^\/c(\d+)\/v(\d+)/);
          if (!match) {
              return driveId;
          }
          var vid = match[2];
          var cid = match[1];
          var vdInfo;
          _.forEach(virtualDiskData.Controllers, function(controller) {
              var vd = _.get(controller,
                  'Response Data[%s]'.format(driveId.virtualDisk));
  
              if (vd) {
                  vdInfo = vd[0];
                  vdInfo.oemId = controller.oemId;
                  vdInfo.pdList = _.get(controller,
                      'Response Data[PDs for VD %d]'.format(vid)
                  );
                  return false; // break forEach
              }
          });
  
          if(!vdInfo) {
              // clear virtualDisk if no matched info found in catalog
              driveId.virtualDisk = '';
              return driveId;
          }
          // set extended info to driveId catalog
          driveId.size = vdInfo.Size;
          driveId.type = vdInfo.TYPE;
          driveId.controllerId = cid;
          driveId.physicalDisks = _.map(vdInfo.pdList, function (pd) {
              // for more physical disk info, search megaraid-physical-drives
              var eidslt = pd['EID:Slt'].split(':');
              return {
                  deviceId : pd.DID,
                  enclosureId : eidslt[0],
                  slotId : eidslt[1],
                  size: pd.Size,
                  protocol: pd.Intf,
                  type: pd.Med,
                  model: pd.Model
              };
          });
          driveId.deviceIds = _.map(driveId.physicalDisks, function (disk) {
              return disk.deviceId;
          });
          driveId.slotIds = _.map(driveId.physicalDisks, function (disk) {
              // slotId : /c0/e252/s10
              return '/c%d/e%d/s%d'.format(cid, disk.enclosureId, disk.slotId);
          });
          // OEM id is Dell or LSI
          driveId.controllerVendor = vendors[_.parseInt(cid)];
  
          return driveId;
      }