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The statistic depicts global enterprise demand for the reliability and/or availability of server hardware and operating systems, according to a 2020 survey. In 2020,
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percent of respondents indicated they required their servers to be available
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Enterprise server reliability and availability requirements worldwide, from 2013 to 2020
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companies of all sizes and across 40 vertical markets
Supplementary notes
The actual unplanned annual downtime for the three categories translates as follows:
-99.9 percent: 8.76 hours;
-99.99 percent: 52 minutes;
-99.999 percent: 5.25 minutes or less;
- > 99.999 percent: 52 seconds.
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ITIC, & Lenovo, & IBM. (April 1, 2020). Enterprise server reliability and availability requirements worldwide, from 2013 to 2020 [Graph]. In Statista. Retrieved November 14, 2025, from https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/
ITIC, und Lenovo, und IBM. "Enterprise server reliability and availability requirements worldwide, from 2013 to 2020." Chart. April 1, 2020. Statista. Accessed November 14, 2025. https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/
ITIC, Lenovo, IBM. (2020). Enterprise server reliability and availability requirements worldwide, from 2013 to 2020. Statista. Statista Inc.. Accessed: November 14, 2025. https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/
ITIC, and Lenovo, and IBM. "Enterprise Server Reliability and Availability Requirements Worldwide, from 2013 to 2020." Statista, Statista Inc., 1 Apr 2020, https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/
ITIC & Lenovo & IBM, Enterprise server reliability and availability requirements worldwide, from 2013 to 2020 Statista, https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/ (last visited November 14, 2025)
Enterprise server reliability and availability requirements worldwide, from 2013 to 2020 [Graph], ITIC, & Lenovo, & IBM, April 1, 2020. [Online]. Available: https://www.statista.com/statistics/753907/worldwide-enterprise-server-availability-reliability-requirement/
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