The Nasdaq Nordic datacenter located in a Upplands-Väsby,(north of Stockholm) Sweden facility hosted by Digiplex had to be shut down after the noise of the fire suppression system destroyed hard drives for around a third of the Nasdaq servers. Bleepingcomputer reports here.
DigiPlex said “there was no fire, but the fire system triggered the gas suppression system in the module of one of our customers.”
The failure of harddisks halted trading on the stock markets of Sweden, Denmark, Finland, Latvia, Estonia, and Lithuania, as well as stock and fixed-income trading in Iceland.
Nasdaq Nordic fixed the issue by 14:00, local time, when it brought online a backup system to facilitate stock and securities trading in the area. Nasdaq officials told Finnish media the backup system will remain in use until Monday when they’ll be able to replace affected equipment.
Servers used by Finnish banks FIM Bank and OP Bank Group were also affected by the issue.
This issue is the same as what happened in an ING bank datacenter at September 10, 2016. I described this issue in this blogpost.