• I personally would go with option #1. Reason include that your system is an OLTP system (with considerable size), and I have seen how heavy tempDB operations can deteriorate the performance of OLTP. For OLTP, you should really be concentrating on TempDB I/O.

    I take you are looking at option 2 for resiliency reasons. If resiliency and reliability of data file drive is a concern, I suggest you get a comprehensive backup strategy in place (rather than loosing out a seggregate work space for TempDB).

    Let me know any follow up queries you might have.

    - Vikas Rajput

    _____________
    Vikas S. Rajput