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z/OS System (Titan)

The NIH Data Center's z/OS mainframe system (Titan) provides an efficient, reliable and economical computing environment, and offers robust commercial products and tools.

Titan Password Help


Titan uses IBM's JES2 and provides the following services:

Interactive Systems


  • DB2
  • Oracle client

Language Compilers

  • PL/I
  • REXX
  • High Level Assembler
  • C/C++

Statistical Systems (limited support)

Other Facilities

More information on hardware and software is available on the CIT website. 


Titan is validated for hosting critical applications and sensitive data. For further information, see security.

Additional Information and Assistance

Users will find the following CIT publications useful:

New Titan users should subscribe to the web-based periodical Titan News via NIH Listserv.

Assistance is available from the NIH IT Service Desk at 301-496-4357 (local), 866-319-4357 (toll free), or 301-496-8294 (TTY).

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This page last reviewed: May 23, 2014