dCache: from Resilience to Quality of Service

Journal Article · Mon Aug 23 00:00:00 EDT 2021 · EPJ Web of Conferences (Online)

DOI:https://doi.org/10.1051/epjconf/202125102043· OSTI ID:1831934

Rossi, Albert ^[1]; Chitrapu, Krishnaveni ^[2]; Garonne, Vincent ^[3]; Litvintsev, Dmitry ^[1]; Meyer, Svenja ^[4]; Millar, Paul ^[4]; Mkrtchyan, Tigran ^[4]; Morschel, Lea ^[4]; Sahakyan, Marina ^[4]

---

1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
2. Linköping University (Sweden)
3. Univ. of Oslo (Norway)
4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

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.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1831934
• Alternate ID(s): OSTI ID: 23172310
• Report Number(s): FERMILAB-CONF-21-212-SCD; oai:inspirehep.net:1914520
• Journal Information: EPJ Web of Conferences (Online), Journal Name: EPJ Web of Conferences (Online) Vol. 251; ISSN 2100-014X
• Publisher: EDP Sciences
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING