Cloud provider De Novo experienced a power outage at its data center in Ukraine on Saturday, April 26.
Reported by local and tech publications, including dev.ua, the data center outage occurred during work on the UPS.
The outage lasted for 14 minutes, between 8:03 am and 8:17 am local time, said De Novo CEO Maksym Ageyev.
Ageyev explained: "In the morning, the technical services of the data center carried out routine work to update and replace uninterruptible power supplies. During this work, one of the power switching systems suddenly worked, blocking access to both the battery and the generators."
He added that after the 14-minute outage, the company restored power to all systems, but that "a large amount of our customers' equipment was de-energized, and restoring the operation of these systems takes quite a long time."
By 11:00 am local time, the public cloud was fully restored. According to Ageyev, this is the first data center failure experienced by the company since 2008.
Among the services impacted locally were online payment and financial services, including Diia, Nova Poshta, Schadbank, and payment terminals.
De Novo's cloud services operate out of three availability zones: a Frankfurt data center in Germany, and two data centers in Ukraine - one in Lviv, and another in Kyiv. The Kyiv data center is owned and operated by De Novo, and was launched in 2010.
According to the data center specs, the company's primary data center building at the Kyiv site spans 2,117 sqm (22,787 sq ft) and offers a total power capacity of 3.05MW and 1.05MW of IT power. The secondary building spans 1,200 sqm (12,916 sq ft), and has 500kW of IT power available.
In addition to cloud services, De Novo offers colocation services in its Kyiv data center.
A UPS issue caused an outage at a Google data center in Columbus, Ohio, last month. A follow-up report said that the outage was caused by a "cascading failure" within the UPS system that was responsible for maintaining power in such an event.