Check connect to all linkeds

SET NOCOUNT ON;
DECLARE @LinkName NVARCHAR (128), @retval INT
IF (SELECT COUNT (srvname) FROM sys.sysservers WHERE srvname <> @@SERVERNAME) = 0 RETURN

DECLARE srvname INSENSITIVE CURSOR FOR 
(SELECT srvname FROM sys.sysservers WHERE srvname <> @@SERVERNAME) FOR READ ONLY
OPEN srvname
FETCH NEXT FROM srvname INTO @LinkName
WHILE @@FETCH_STATUS = 0
BEGIN
BEGIN TRY
EXEC @retval = sys.sp_testlinkedserver @LinkName
END TRY

BEGIN CATCH
IF @LinkName IS NULL RETURN
SET @retval = SIGN(@@ERROR)
IF @retval <> 0 
RAISERROR ('Unable to connect to server. This operation will be tried later!', 16, 2 )
END CATCH
FETCH NEXT FROM srvname INTO @LinkName

END

CLOSE srvname
DEALLOCATE srvname