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Power Outage on April 7, 2025

A brief power outage occurred in Mishima City around 13:55, lasting approximately one minute.
The supercomputer itself did not experience a power outage due to the UPS, but network connectivity was lost for about 5 minutes.
Other impacts are currently under investigation.

Date and Time​

April 7, 2025 (Monday), 13:55 JST (approx. 5 minutes)

For more details on the outage, please refer to TEPCO's power outage history:
https://teideninfo.tepco.co.jp/day/teiden/index-j.html

Scope of Impact​

  • The supercomputer was not affected by the power outage thanks to the UPS, but network connectivity was lost for about 5 minutes.
  • Other impacts are currently under investigation.
  • There was no interruption to running jobs.
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