ServerInfo server = null; 
                        try
                        {
                            server = new ServerInfo
                            {
                                ServerName = reader.GetString(reader.GetOrdinal("ServerName")),
                                IsMaster = reader.GetBoolean(reader.GetOrdinal("IsMaster")),
                                IsUpdated = (reader.GetString(reader.GetOrdinal("ServerStatus")) == "UPDATED"),
                            };
                            servers.Add(server);
                        }
                        catch(Exception e)
                        {
                            OnError("Ошибка при считывании метаданных", e); 
                        }

                        try
                        {
                            server.Server = ServerManager.OpenRemote(reader.GetString(reader.GetOrdinal("ServerName")));
                        }
                        catch (Exception e)
                        {
                            OnError(string.Format("Ошибка при обращении с серверу IIS {0}", server.ServerName), e);
                        }
                        // и так далее
                        SiteCollection sites = server.Server.Sites;
                        Site site = sites["Default Web Site"];
                        server.IsOn = site.State == ObjectState.Started;

// Retry a specified number of times, using a function to 
// calculate the duration to wait between retries based on 
// the current retry attempt, calling an action on each retry 
// with the current exception, duration and context provided 
// to Execute()
Policy
  .Handle<DivideByZeroException>()
  .WaitAndRetry(
    5, 
    retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)), 
    (exception, timeSpan, context) => {
      // do something
    }
  );

                        SafeExecute(delegate()
                        {
                            server.Server = ServerManager.OpenRemote(server.ServerName);
                        }, 
                        string.Format("Ошибка при обращении с серверу IIS {0}", server.ServerName)); 

                        Site site = null;
                        SafeExecute(delegate() { 
                            SiteCollection sites = server.Server.Sites;
                            site = sites["Default Web Site"];
                        }, "Не удалось открыть сайт"); 
                        
                        SafeExecute(delegate() { 
                            server.IsOn = site.State == ObjectState.Started;
                        }, "Не удалось узнать статус сайта");