The Tokyo Stock Exchange's day-long outage on Thursday was caused by a failover glitch after a critical data storage and distribution device had malfunctioned (Bloomberg)

Bloomberg:
The Tokyo Stock Exchange's day-long outage on Thursday was caused by a failover glitch after a critical data storage and distribution device had malfunctioned  —  - Data storage and distribution device brought down Tokyo market  — Stock exchange forced to close trading for the entire day

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