KEK preprint 97-20

Large Scale File Service based on DCE/DFS in HEP


S. Yashiro, T. Sasaki, T. Ishikawa,
Y. Morita, H. Mawatari, Y. Watase (KEK)
N. Takashimizu (Niigata University)
T. Itoh, Y. Kodama, H. Itoh, Y. Munakata, S. Kohno (Hitachi Ltd.)

CHEP'97 at Berlin
April 10, 1997

Large Scale File Service based on DCE/DFS in HEP
KEK Central Computer System (KEKCC)
Introduction
KEK Central Computer System
User groups on KEKCC
Requirements on the KEKCC system
Working group services
Working Group Services
Figure: KEK Central Cluster System
Figure: Central cluster
Technologies used in the KEKCC system
Choice of the distributed file system(1)
Choice of the distributed file system(2)
System design using DCE/DFS(1)
Figure: Intercell Connection
System design using DCE/DFS (2)
Implementation of DCE/DFS for KEKCC
Improvements of DCE/DFS for KEKCC
Enhancements and Tuning
Integrating HSM(JP1/OmniStorage) and DCE/DFS
   (2) (3) (4) (5) (6) (7) (8)
Token parameters tuning for DCE/DFS
   (2) (3)
Caching algorithm enhancement for DCE/DFS
   (2) (3) (4) (5) (6) (7)
DFS cache size tuning
   (2) (3)
Hitachi DCE/DFS products
Summary