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A Ukrainian drone attack started a fire at a Yandex data center in Sasovo, Ryazan region, and the facility has halted operations. The site houses two of Yandex’s three supercomputers, but the company has not reported their condition. Yandex warned that some services could be unavailable as users reported outages.
A Ukrainian drone attack started a fire at a Yandex data center in Sasovo, in Russia’s Ryazan region, halting operations at a facility that houses two of the company’s three supercomputers. No injuries were reported, but Yandex warned that some services could be unavailable, and the condition of the supercomputers remains unknown.
The fire began on the grounds of the Sasta machine-tool plant, where the data center occupies part of the plant’s former premises. Ryazan regional authorities said the roof of “one of the enterprises” caught fire after the attack; they did not identify the plant. The report says the data center has completely halted operations.
Yandex said some of its services may be unavailable. Users reported problems with Yandex services, including Yandex Cloud and services that depend on it, such as Yandex Disk and Yandex Documents. The report also described outages at Cian, Russian Railways and websites belonging to several regional administrations. It did not establish whether every reported outage was caused by the strike.
The site houses Lyapunov and Chervonenkis, two systems used to train neural networks. Yandex has not reported their post-strike condition. The company’s third named supercomputer, Galushkin, is located in Vladimir, according to the report.
Service Disruptions and Computing Capacity
The immediate effect is on a data center whose operations support Yandex services and dependent systems. Any continued disruption could affect users and organizations relying on those services. The source describes outages as already being reported, but does not give their duration, reach or confirmed cause service by service.
The incident also puts two systems used for neural-network training at a facility whose operations have stopped. Chervonenkis is identified by the science-focused outlet T-invariant as Yandex’s most powerful supercomputer. Whether either system was physically damaged, and whether the stoppage affects the company’s computing capacity beyond the facility’s closure, has not been established.
Yandex shares fell more than 3% amid the strike, according to Moscow Exchange data cited in the report. That is a market movement reported at the time; the source does not establish how much of the change was attributable to the attack or how long it lasted.
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The Sasovo Site and Its Machines
The data center has occupied part of Sasta’s former premises since 2014. In September, employees showed equipment at the center and said they worked in Sasovo, according to the report. Sasta makes pipe-threading machines for export and Russian machine-building plants. The independent Telegram channel Astra says the plant also provides a production base for defense companies. The report says Western countries have placed the plant on sanctions lists.
The two Sasovo systems have different reported profiles. Chervonenkis ranked 19th in the global Top 500 supercomputer list in 2021, according to T-invariant. It later fell into the second hundred as Yandex faced difficulties updating infrastructure amid sanctions, the outlet reported. Those historical rankings do not establish either machine’s current performance or its condition after the fire.
The strike comes amid reported attacks on data centers in Ukraine. Meduza says that since September 23, facilities belonging to at least eight companies have been damaged or destroyed, with some struck more than once. Russia’s Defense Ministry said those Ukrainian centers “provide for the processing and transmission of intelligence data in the interests of the Ukrainian Armed Forces.” That is the ministry’s claim, as reported by Meduza.
“Some of its services may be unavailable.”
— Yandex
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Target and Damage Remain Unclear
It is unclear whether the plant or the data center was the intended target. Ukraine had not officially commented on the attack in the source material. Ryazan authorities did not name the enterprise whose roof caught fire, and no detailed account of damage inside the data center was available.
Yandex had not said whether Lyapunov or Chervonenkis was damaged. The source also does not confirm the cause or scope of each reported service outage, when normal operations might resume, or whether the share-price decline persisted. The report’s description of no injuries refers to the incident as reported; further updates could change the available picture.
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Updates on Repairs and Services
The next key information is likely to come from Yandex and regional authorities: whether the data center can resume operations, what damage the fire caused and whether the two supercomputers remain usable. Service-status updates would help establish which disruptions are linked to the facility and when affected users can expect access to return. Ukraine’s official position on the strike was not available in the source material.
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Key Questions
Where did the fire occur?
It started at the Sasta machine-tool plant grounds in Sasovo, Ryazan region, where a Yandex data center occupies part of the plant’s former premises.
Which Yandex supercomputers are at the site?
The facility houses Lyapunov and Chervonenkis, which are used to train neural networks. The report says the company’s third system, Galushkin, is in Vladimir.
Were the supercomputers damaged?
That has not been reported. Yandex had not provided information on their condition in the source material.
What services reported problems?
Users reported issues with Yandex services, including Yandex Cloud, Yandex Disk and Yandex Documents. Outages were also reported at Cian, Russian Railways and several regional administration websites, but the source does not confirm the cause of every outage.
Has Ukraine said the data center was the target?
Ukraine had not officially commented on the strike in the report. It remains unclear whether the plant or the data center was the intended target.
Source: rss
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