Office of the Chief Information Officer

United States Department of Agriculture



Service Description

The Digital Infrastructure Services Center (DISC) Mainframe Platform as a Service (PaaS) includes a fully managed operating platform for mainframe-based applications. This fully-managed service includes systems engineering services, software tools, storage services, technology refresh, and disaster recovery.

What is Included

  • Fully managed DISC Network Services and infrastructure
  • Fully managed zOS™ operational environment
  • Third party software tools, utilities, and support
  • System security administration and support
  • Capacity planning and performance tuning
  • 24x7 system and network monitoring and support
  • Fully managed disk and tape storage services
  • Fully managed Disaster Recovery of the operating platform
  • Application data recovery support
  • Customer certification testing support
  • Job scheduling and related monitoring
  • Standard database administration activities
  • Systems engineering and consulting services
    • Install, configure, customize, and maintain the Operating System (OS) and system utilities
    • Research, coordinate, and apply OS maintenance
    • Management, analysis, and review of OS system audit logging
    • Troubleshoot and resolve OS-related problems
    • Disk and Tape storage administration
    • Perform system tuning within the limits of DISC configuration standards
  • Related inheritable management controls

How We Charge

Hosting charges are based on actual usage measurements.

Price drivers:

  • Prime time and non-prime time Central Processing Unit (CPU) usage
  • High, Normal, Medium, or Deferred Priority
  • Amount of disk storage utilized
  • Amount of tape storage utilized
  • Additional charges may apply for
    • Specialized software
    • Database administration
    • Application support

Service Level Metrics

Measure Service Level Targets
System Monitoring 24 x 7
Incident Response 24 x 7
System Availability 99.9% or more
excluding planned downtime*

* DISC reserves the option to schedule routine infrastructure maintenance activities on Sundays between 1800 to 2400 hours Central Time.

NOTE: DISC utilizes the USDA Universal Telecommunication Network (UTN) for Wide Area Network services. The UTN is contractually guaranteed to be 99.9% available but has historically delivered over 99.99% availability.

Cost Saving Tips

  • Adhere to the scheduled maintenance window
  • Provide at least 180 days notice for growth or retraction of processing requirements
  • Communicate project processing requirements on a quarterly basis
  • Participate in scheduled disaster recovery testing
  • Archive data only when necessary
  • Delete any unnecessary data
  • Utilize standard tools and applications

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