Buffalo's official patch for an issue caused by the latest Windows security updates.
After the 2020-02 Windows Update, some systems with healthy HDDs may report HDD's E30 error on the LCD, Buffalo Dashboard and NASNavigator.
Download the:
Patch fileAnnouncementFAQModels that might be affected:
WS5000 series with Windows Storage Server 2012
WS5000 series with Windows Storage Server 2012R2