Query Time out option in OpenRowSet

Team,

     My requirement is to loop through around 100 SSAS Instances and run an MDX query and get response from SQL Server.

     To achive this , I used openrowset solutions

    SET @sqlquery =N'SELECT @LastScanperiod = [[Measures]].[Last Scan Date Internal]]]  
FROM OPENROWSET(''MSOLAP'', ''DATASOURCE=' + @CubeServername +';Initial Catalog=' + @CubeDBName +';Timeout=10''
  ,''SELECT {[Measures].[Last Scan Date Internal]} ON 0 
 FROM [' + @CubeName +']''
)  '
  SET @params = N'@LastScanperiod INT output'; 

   EXEC sp_executesql @sqlquery,@params,@LastScanperiod = @LastScanPeriodKey OUTPUT

   But few of the servers might be down or may take longer time to respond.   I would like to Timeout after a specified period of time instead of waiting until server responds.  Even though I specified Timeout option as 10 sec , still its not working.  Any idea how to solve this?

Thanks,

Prathap