26TH INTERNATIONAL CONFERENCE ON COMPUTING IN HIGH ENERGY & NUCLEAR PHYSICS (CHEP2023)

Efficient interface to the GridKa tape storage system

Not scheduled

1h

Hampton Roads Ballroom and Foyer Area (Norfolk Waterside Marriott)

Poster Poster Poster Session

Speaker

Schnepf, Matthias (Karlsruhe Institute of Technology)

Description

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 HighPerformance 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 and understood very deeply. Taking into account the features and characteristics of HPSS, a new approach has been developed for writing and reading files to and from tape storage system. This new approach allows more/better optimized and efficient write and read 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 within the new HPSS tape storage configuration.

Presentation materials

poster_CHEP_2023_H_3.pdf

Peer reviewing

Paper

Accepted on Jan 17, 2024 by Oksana Shadura

Paper files:

• License_H.pdf
• Efficient_interface_to_the_GridKa_tape_storage_system_rev3.pdf