HOURS OF AVAILABILITY OF MVS/TSO AT SIUC

Note:  the CMS programming environment was removed from service on June 30,
2005.  In its place, SIUC mainframe computer users have the TSO environment
in which to submit programs.  Former CMS users requiring assistance with the 
change to TSO should contact Information Technology's Adam Floro (adam@siu.edu).  
Adam has put together a document which covers many of the details of this 
process, and which serves as an introduction to features of TSO.

You may normally submit Mark IV, SAS, COBOL, and other types of mainframe 
computer programs for execution from your TSO account at almost any time.

However, if your program will require the mounting of a tape by the Operations 
staff, you cannot submit the program during third shift on the weekends (that
is, 12:01am to 8:00am on Saturday and Sunday).

Also, on approved SIUC University holidays, the Network Control Center is
normally staffed no more than between 9:00am and 5:00pm.  You normally can't 
submit scheduled programs via JobTrac during the hours when NCC is not staffed, 
but you may be able to submit ad hoc programs from your own TSO library during 
such times (if they do not require tape mounts or other intervention by the
Operations staff).  For more information, including announcements of service 
outages, NCC's Web site is https://itmfs1.it.siu.edu/ncc/php/.

Other than these restrictions on the submission of programs, you should normally 
be able to access and use your TSO account 24/7/365.