ALERT

[FREE DEMO] Deploy Your Enterprise Cloud in Minutes

Uptime

Definition - What does Uptime mean?

Uptime is a metric that represents the percentage of time that hardware, an IT system or device is successfully operational. It refers to when a system is working, versus downtime, which refers to when a system is not working.

Techopedia explains Uptime

One critical role of the terms uptime and downtime is defining the level of success provided by realtime services or systems. It can be difficult to quantify a service's success or value without these terms. A service level agreement (SLA) or other real-time service contract may include uptime/downtime ratios that show how much time a service is expected to remain operational.

In other cases, IT professionals use uptime to refer to a total consecutive amount of operational time. When a computer system has been consistently running for three weeks, one could refer to a "three-week uptime," or say, "uptime is at three weeks and counting."

In general, uptime is considered the default where uptime is contrasted with downtime. Downtime often requires specific explanation or description, such as downtime for maintenance, downtime as a result of malfunction/error or downtime resulting from crisis.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.