Downtime

Downtime refers to periods of time during which a computer system, server or network is shut off or unavailable for use. Systems go through periods of downtime for a variety of reasons, including power or hardware failure, system crashes, hacker attacks, system reboots, operating system and/or software updates, lack of network connectivity and more.

While some downtime events are planned as part of maintenance schedules (“planned downtime”), in many cases periods of downtime result from unplanned or unexpected events like network outages and hardware failure.

Downtime vs. Uptime and High Availability

In contrast to downtime, the periods of time when a computer system is fully operational and available to users and other systems are referred to as uptime or periods of availability.

A closely related term is High Availability, which refers to computer systems that have a very high rate of uptime and that have been developed to be able to survive single points of failure in order to avoid potential downtime.system downtime

System administrators and other IT personnel are often tasked with ensuring the availability of mission-critical computer systems and preventing and minimizing enterprise IT downtime events as much as possible.

Forrest Stroud
Forrest Stroud
Forrest is a writer for Webopedia. Experienced, entrepreneurial, and well-rounded, he has 15+ years covering technology, business software, website design, programming, and more.

Top Articles

List of Windows Operating System Versions & History [In Order]

The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows...

How to Create a Website Shortcut on Your Desktop

Website Shortcut on Your Desktop reviewed by Web Webster   This Webopedia guide will show you how to create a website shortcut on your desktop using...

What are the Five Generations of Computers? (1st to 5th)

Reviewed by Web Webster Each generation of computer has brought significant advances in speed and power to computing tasks. Learn about each of the...

Hotmail [Outlook] Email Accounts

Launched in 1996, Hotmail was one of the first public webmail services that could be accessed from any web browser. At its peak in...

HighLevel CRM

HighLevel is a sales and marketing customer relationship management (CRM) solution designed by...

Unified Endpoint Management (UEM)

As enterprise networks become increasingly distributed with growing numbers of remote workers, unified...

Decision Intelligence

Decision intelligence combines business intelligence (BI) and artificial intelligence (AI) models to improve...