title: What's the fastest method to check SQL server availability?
body: <p>What's the best method to check if SQL server exists or not? </p>
  
  <p>I'm trying Microsoft.SqlServer.Management.Smo.Server.PingSqlServerVersion()
  and it works fine if server exists and available. 
  But it kinda pretty slow, if there is no such a server.</p>
  
  <p>Is there any fast enough method to check without even defining user credentials (only the server name), if a server exists?</p>
  
  <p>What do you recommend to use?</p>