https://doi.org/10.1051/epjconf/202125102043
dCache: from Resilience to Quality of Service
1 Deutches Elektronen-Synchrotron DESY, Hamburg, Germany
2 Fermi National Accelerator Laboratory FNAL, Batavia, USA
3 National Super Computer Center, Linköping University, Sweden
4 Nordic e-Infrastructure Collaboration, University of Oslo, Norway
* e-mail: arossi@fnal.gov
Published online: 23 August 2021
A major goal of future dCache development will be to allow users to define file Quality of Service (QoS) in a more flexible way than currently available. This will mean implementing what might be called a QoS rule engine responsible for registering and managing time-bound QoS transitions for files or storage units. In anticipation of this extension to existing dCache capabilities, the Resilience service, which maintains on-disk replica state, needs to undergo both structural modification and generalization. This paper describes ongoing work to transform Resilience into the new architecture which will eventually support a more broadly defined file QoS.
© The Authors, published by EDP Sciences, 2021
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.
