Hierarchical Storage Management system for KEKB Computing and its Performance

Paper: 237
Session: C (talk)
Speaker: Manabe, Atsushi, KEK, Tsukuba
Keywords: data management, file systems, hierarchical storage management, mass storage


Hierarchical Storage Management system for KEKB Computing and its Performance

Authors :

A.Manabe, H.Fujii, Y.Morita, T.Sasaki, Y.Watase
KEK, Oho 1-1, Tsukuba 305, Japan
H.Nakamura, T.Terasawa
Sony Co. Kanagawa Japan


Abstract :
The KEKB computer system for B Factory experiment at KEK
consists of the three subsystem,
computing servers, user workstations and a mass strage system.
The mass strage system
contains 4.2 GBytes disks which are Maximum Strategy
Inc.'s high performance SCSI RAID arrays and 150 TBytes
Tape Libraries which are Sony's PetaSite. The storage system
is used from 7 computing servers through a mesh-type
interconnect network called AP-net(Fujitsu co.ltd appropriate
network) and also from user workstations through an ATM based
intra network.
About a half of the storage will be operated under a
Hierarchical Storage Managing System (based on OSM from Computer
Associate Co.) to cope with usability of such a
huge amount of storage space on
the network environment. This paper aims to show several
performance measurement in comparing with a Stage-in/Stage-out
based system and its operational experience.