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A Ukrainian drone attack sparked a fire at a Yandex data center in Sasovo, Russia’s Ryazan region, and the facility has stopped operating. The center houses two of Yandex’s three supercomputers, but the company has not reported their condition; the strike’s intended target is also unclear.
A Ukrainian drone attack sparked 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 company has not said whether the supercomputers were damaged.
The fire began at the data center on the grounds of the Sasta machine-tool plant, according to the report by Meduza. Ryazan region authorities acknowledged that a Ukrainian attack had caused a roof fire at an unnamed enterprise but did not identify the plant. The data center has occupied part of Sasta’s former premises since 2014.
Meduza reported that the facility had completely halted operations. Yandex said some of its services might be unavailable, while users reported problems with Yandex services. Reported disruptions included Yandex Cloud and services that depend on it, such as Yandex Disk and Yandex Documents. The report also described outages affecting Cian, Russian Railways and websites belonging to several regional administrations; it did not establish whether every outage resulted from the strike.
The Sasovo site houses the supercomputers Lyapunov and Chervonenkis, which Yandex uses to train neural networks. The science-focused outlet T-invariant identifies Chervonenkis as the company’s most powerful supercomputer. Yandex has not reported on either machine’s condition. Its third system, Galushkin, is located in Vladimir, according to Meduza.
Yandex Services and Computing Capacity
The facility’s shutdown has consequences beyond damage to a single industrial site. The reported service problems affect Yandex Cloud and dependent products, while outages were also reported at unrelated websites. The available reporting does not establish the cause of each disruption, but the reports show how an incident at a data center can coincide with service interruptions across multiple online platforms.
The supercomputers’ status matters because they support neural-network training, and two of Yandex’s three systems are based in Sasovo. A prolonged outage or damage to the equipment could affect the company’s computing capacity. That possibility remains conditional: there is no confirmed account of damage to the machines, how long the center will remain offline, or whether workloads can be shifted to other facilities.
Yandex shares fell more than 3% amid the strike, according to Moscow Exchange data cited by Meduza. That is a reported market movement, not proof of the strike’s longer-term financial effect. The scale of any lasting impact will depend on the damage, the length of the shutdown and the recovery of affected services.
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The Sasovo Site and Its Supercomputers
The data center is located on part of the former premises of Sasta, a manufacturer of pipe-threading machines. Meduza reports that Sasta supplies equipment for export and to machine-building plants across Russia. The independent Telegram channel Astra describes the plant as a production base for defense enterprises; the source material does not independently establish that characterization. Meduza also reports that the plant is on sanctions lists maintained by several Western countries.
Chervonenkis ranked 19th in the 2021 Top 500 list of the world’s supercomputers, according to the source report. It later fell into the second hundred of the rankings as Yandex faced difficulties updating infrastructure amid sanctions, Meduza reported. That past ranking gives a measure of the system’s previous standing, but it does not establish its current performance or condition after the fire.
The Sasovo strike comes amid reported attacks on data centers in Ukraine. Meduza says that since September 23, data centers belonging to at least eight companies had been damaged or destroyed by Russian forces, with some attacked more than once. Russia’s Defense Ministry said the Ukrainian facilities processed and transmitted intelligence for the Ukrainian Armed Forces. The source report presents that as the ministry’s claim, not an independently verified description of every facility.
“The roof of “one of the enterprises” caught fire after the Ukrainian attack.”
— Ryazan region authorities, as reported by Meduza
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Damage, Target and Outage Causes
It is not yet clear whether the Sasta plant or Yandex’s data center was the intended target. Ukraine had not officially commented on the strike in the reporting available to Meduza. The condition of Lyapunov and Chervonenkis, the extent of physical damage at the site and the time needed to restore operations also remain unknown.
Yandex warned of possible service interruptions, and users reported outages. However, the available report does not confirm that every reported disruption at Yandex, Cian, Russian Railways or regional government websites was directly caused by the incident. No injury reports were cited, and the source material did not provide an official damage assessment or a timetable for reopening the center.
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Updates on Repairs and Service Recovery
The immediate developments to watch are a damage assessment, an update from Yandex on its supercomputers and an estimate for restoring the Sasovo center. Updates from regional authorities or Ukraine could clarify the circumstances of the strike, but no such clarification was included in the report.
Users and businesses relying on affected services will need information on which systems are disrupted and when they are restored. Until Yandex provides further details, the duration of the outage, the extent of any equipment loss and the full effect on services remain unresolved.
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Key Questions
What happened at the Yandex data center?
A Ukrainian drone attack started a fire at the Sasovo facility in Russia’s Ryazan region. The data center stopped operating, and no injuries were reported in the source account.
Which Yandex supercomputers are at the site?
The Sasovo center houses Lyapunov and Chervonenkis, two of Yandex’s three supercomputers. The company has not reported their condition after the fire.
Did the strike cause Yandex service outages?
Yandex warned that some services might be unavailable, and users reported problems. Meduza also reported disruptions to Yandex Cloud and dependent services, but the cause of every reported outage was not confirmed.
Is it known what the attack was targeting?
No. The report says it is unclear whether the plant or the data center was the intended target. Ukraine had not officially commented in the reporting cited.
What happens next?
Further updates are needed on the site’s damage, the supercomputers’ condition and the timeline for restoring operations and affected services. No recovery schedule was available in the report.
Source: rss
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