National Information Technology Center Tier Performance Standards
Published on: Mar 3, 2016
Transcripts - National Information Technology Center Tier Performance Standards
Office of the Chief
National Information Technology Center
Tier Performance Standards
The National Information Technology
Center (NITC) is responsible for the Each location operates under the following classifications:
operation and management of USDA
Enterprise Data Centers (EDC) in
Kansas City, Missouri, St. Louis,
Missouri, Beltsville, Maryland and
Salt Lake City, Utah. The NITC
provides diverse redundant power Kansas City, MO IV Site Infrastructure
feeds to customer's IT infrastructure St. Louis, MO III Site Infrastructure
configurations that are essential to Beltsville, MD II Site Infrastructure
maintaining a high level of uptime for
mission-critical systems and
applications. Green Practices are in
line with Executive Order 13423 of www.ocio.usda.gov/nitc
January 24, 2007, ordering agencies to
improve energy efficiency and reduce
greenhouse gas emissions. The NITC
is requiring its customers to procure 888-USE-NITC
specified “green” options when
purchasing IT assets for the data
center. “Partnering for Success”
Fundamental Requirements for
Tier Performance Standards*
Tier I: Basic Site Infrastructure
A Tier I basic data center has non-
redundant capacity components and a Aligning Business Requirements with Tiers*
single, non-redundant distribution path
serving the computer equipment.
Tier I facilities are:
Small businesses where information technology primarily
Tier II: Redundant Capacity
enhances internal business process.
Components Side Infrastructure
Companies whose principal use of a web-presence is as a passive
A Tier II data center has redundant marketing tool.
capacity components and a single, non- Internet-based start-up companies without financially enforceable
redundant distribution path serving the customer quality-of-service commitments.
Tier II facilities are:
Tier III: Concurrently Maintainable Call centers where multiple sites are available.
Site Infrastructure Internet-based companies without serious financial penalties for
A Concurrently Maintainable data center Small businesses whose information technology requirements are
has redundant capacity components and mostly limited to traditional normal business hours, allowing
multiple independent distribution paths system shutdown during off hours.
serving the computer equipment. Scientific research, such as chip design, oil exploration, seismic
Generally, only one distribution path processing, or long-term weather modeling, that typically do not
serves the computer equipment at any have online or real-time service delivery obligations.
Tier III facilities are:
All IT equipment is dual powered and Companies that support internal and external clients 24x7, such as
installed properly to be compatible with service centers and help desks, but can accept short periods with
the topology of the site’s architecture. limited service due to a site failure.
Businesses whose information technology resources support
Tier IV: Fault Tolerant Site automated business processes, so the impact on clients of system
Infrastructure shutdowns is manageable or acceptable.
Companies spanning multiple time zones with clients and
A Fault Tolerant data center has multiple, employees spanning regional areas.
independent, physically isolated systems
that each have redundant capacity Tier IV facilities are:
components and multiple, independent, Companies with an international market presence delivering “24
diverse, active distribution paths by forever” services in a highly competitive client-facing market
simultaneously serving the computer space or where processes are continuous (international in and
equipment. outbound wire transfers, etc.).
Businesses based on E-commerce, market transactions, or
All IT equipment is dual powered and financial settlement processes.
installed properly to be compatible with Large, global companies where client access to applications and
the topology of the site’s architecture. employee exploitation of information technology is a competitive
* Uptime Institute
“Partnering for Success”