TL;DR
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A Ukrainian drone attack started a fire at a data center in Sasovo, Russia, that houses two of Yandex’s three supercomputers. The center has halted operations, and Yandex warned of possible service disruptions; the company has not reported the supercomputers’ condition.
A Ukrainian drone attack started a fire at a Yandex data center in Sasovo, Ryazan region, halting the facility’s operations and potentially disrupting services used by customers and other organizations. No injuries were reported, but the site houses two of Yandex’s three supercomputers, and the company has not said whether they were damaged.
The fire began at a site on the grounds of the Sasta machine-tool plant. Ryazan regional authorities said the roof of “one of the enterprises” caught fire after the attack, according to Meduza’s report. The authorities did not identify the enterprise. Meduza reported that the data center has completely halted operations; it did not provide a restart estimate.
Yandex warned that some of its services may be unavailable. Users reported problems with Yandex Cloud, as well as Yandex Disk and Yandex Documents, which depend on the cloud service. Meduza also reported outages affecting the websites of Cian, Russian Railways and several regional administrations. The report did not establish whether those disruptions resulted directly from the Sasovo outage.
Yandex shares fell more than 3% amid the strike, according to Moscow Exchange data cited by Meduza. The report did not specify the measurement window or a comparison baseline for that move. The Sasovo facility houses Lyapunov and Chervonenkis, two systems used to train neural networks. Yandex has not reported their condition.
Services and Computing Capacity at Risk
The outage affects a facility tied to both Yandex’s consumer services and its neural-network training capacity. Disruptions to cloud infrastructure can also affect services that rely on it, which could help explain why users reported problems beyond the data center itself. The extent and duration of any customer impact remain unknown.
The site’s role also gives the strike significance beyond a single company’s operations. Meduza reported that the facility contains two of Yandex’s three supercomputers, while the third, Galushkin, is located in Vladimir. Damage to either system could affect the company’s available computing resources, but the source material does not establish that either machine was harmed.
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The Sasovo Site and Its Supercomputers
Yandex’s data center has occupied part of Sasta’s former premises since 2014. In September, employees showed the center’s equipment and said they worked in Sasovo, according to Meduza. Sasta manufactures pipe-threading machines for export and for machine-building plants across Russia. The independent Telegram channel Astra has described the plant as a production base for defense enterprises; Meduza also reported that it is on sanctions lists in several Western countries.
The two supercomputers at Sasovo are named Lyapunov and Chervonenkis. Science-focused outlet T-invariant described Chervonenkis as Yandex’s most powerful supercomputer. It ranked 19th in the 2021 Top 500 list, then moved into the second hundred in later rankings amid difficulties updating infrastructure because of sanctions, Meduza reported. The third system, Galushkin, is in Vladimir.
“The roof of “one of the enterprises” caught fire after the Ukrainian attack.”
— Ryazan region authorities, as quoted by Meduza
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Target and Equipment Damage Remain Unknown
It is unclear whether the plant or the data center was the intended target. Ukraine had not officially commented on the strike at the time of Meduza’s report. The report also does not establish how much of the facility was damaged, when operations might resume, or whether either supercomputer suffered damage.
The reported outages at other websites are not fully explained. Meduza listed affected services and organizations but did not provide technical evidence tying each disruption to the Sasovo data center. The relationship between the fire, the facility shutdown and each reported outage remains to be clarified.
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Yandex’s Damage Assessment and Service Recovery
The next key developments are a statement from Yandex on the condition of Lyapunov and Chervonenkis, the scale of damage at the site and a timeline for restoring operations. Updates from Yandex or regional authorities could also clarify whether the fire was confined to the roof and whether other parts of the facility were affected.
Customers and organizations using the affected services will be looking for service-status updates and confirmation that access has returned. Ukraine’s official response, if one follows, may address the strike, but the available report does not indicate when such a statement might come.
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Key Questions
What happened at the Yandex data center?
A drone attack started a fire at the Sasovo site in Russia’s Ryazan region. The data center halted operations, and no injuries were reported in Meduza’s account.
Which Yandex supercomputers are housed there?
The Sasovo facility houses Lyapunov and Chervonenkis, which Yandex uses to train neural networks. The company has not reported their condition after the attack.
Which services have reported problems?
Yandex warned that some services may be unavailable. Users reported issues with Yandex Cloud, Yandex Disk and Yandex Documents; Meduza also reported website outages at Cian, Russian Railways and several regional administrations.
Is it known whether the data center was the target?
No. The available report says it is unclear whether the plant or the data center was targeted, and Ukraine had not officially commented at the time of publication.
Source: rss
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