| Issue |
EPJ Web of Conf.
Volume 295, 2024
26th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2023)
|
|
|---|---|---|
| Article Number | 01020 | |
| Number of page(s) | 9 | |
| Section | Data and Metadata Organization, Management and Access | |
| DOI | https://doi.org/10.1051/epjconf/202429501020 | |
| Published online | 06 May 2024 | |
https://doi.org/10.1051/epjconf/202429501020
Efficient interface to the GridKa tape storage system
Karlsruhe Institute of Technology
Published online: 6 May 2024
Providing high performance and reliable tape storage system is GridKa’s top priority. The GridKa tape storage system was recently migrated from IBM SP to High Performance Storage System (HPSS) for LHC and non-LHC HEP experiments. These are two different tape backends and each has its own design and specifics that need to be studied thoroughly. Taking into account the features and characteristics of HPSS, a new approach has been developed for flushing and staging files to and from tape storage system. This new approach allows better optimized and efficient flush and stage operations and leads to a substantial improvement in the overall performance of the GridKa tape storage system. The efficient interface that was developed to use IBM SP is now adapted to the HPSS use-case to connect the access point from experiments to the tape storage system.
This contribution provides details on these changes and the results of the Tape Challenge 2022 within the new HPSS tape storage configuration.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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