Speaker
Description
The IceCube Neutrino Observatory has accumulated over 15 years of science data, with more years to come. This data has previously been archived in a distributed setup according to accessibility needs and processing level. Trigger-level data is stored at NERSC’s tape system for “online” storage and on physical hard drives stored in a climate controlled room on a shelf for “offline” storage at UW-Madison. Data transmitted over the satellite, which has gone through a first common data filtering step at the South Pole, is stored on tape systems at NERSC and DESY-Zeuthen. This set achieves a robust backup strategy. Except, it wasn't quite as robust as we thought, with factors in 2024 making us concerned about data integrity. The solution was to add an additional facility receiving funding from the same agency as IceCube to store our archived data: the Texas Advanced Computing Center’s Ranch. We will describe the setup and our experience adding this to IceCube’s Long Term Archive system, including syncing over 4PB of data from one tape system to another via Globus.