The ALCF’s HPSS tape libraries will be taken offline at 8:00 p.m (CT). on Sunday, January 12, 2020, to accommodate electrical work taking place in the building that houses the libraries. The libraries will be returned to service when work is completed on Monday, January 13, 2020. Data residing in these libraries will be inaccessible for the duration of the outage. We will notify users when the tape libraries are back online. Please contact support@alcf.anl.gov with any questions or concerns.