Office of the Chief Information Officer

United States Department of Agriculture

Virtual Application Hosting (Citrix)


Service Description

The Digital Infrastructure Services Center (DISC) Virtual Application Hosting service provides the technology necessary to enable the hosting of business applications remotely in the DISC Enterprise Data Center. Combined with other key enabling DISC cloud services, the Virtual Application Hosting service can provide a traditional end user experience for business applications.

What is Included

  • Fully managed and maintained infrastructure
    • State-of-the-art server hardware & software
    • Period technology refresh
  • Managed solutions available
  • Citrix™XenApp™
    • Virtual presentation of business applications
    • Secure Telework capabilities
  • Citrix™XenDesktop™
    • Virtual presentation of complete desktop
    • Provides users with desktop functionality

How We Charge

Costs are based on actual application hosting requirements and virtual application integration services required.

Price drivers

  • Actual dedicated hosting requirements
  • Number of concurrent users of XenApp™ integrated applications
  • Number of XenDesktop™ integrated desktops
  • Application integration services as required (Professional Services)

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

  • Utilize other OCIO service offerings to minimize application integration efforts and reduce costs through economies of scale

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