Hierarchical Storage Management system for KEKB Computing and its Performance
Atsushi Manabe, KEK
Hierarchical Storage Management system
for KEKB Computing and its Performance
Contents
HSM for what purpose
Requrement to HSM
A Hierachical Strage Management
System Over View
HSM(PetaServe) Highlights
Concept of Migration
Migreload
Fancy Function
Hardware Layout
KEK B computer system
HSM portion in the system
Hw parts (1); Tape Library
Hw parts(2):RAIDisk (MSI S-XL)
and Servers
Hw parts(3):Network
Devices performance
Device performance-2
Performance Measurement
Migration speed
Average Access Time (Tacc)
HitTime & MissPenalty
Hit time
Miss penalty
Miss penalty 2
MissRate
PP Presentation
Model calculation
Model calculation-2
Model calculation-3
Model calculation-3
Performance Summary and Its Problems
Functional Problems 1
Functional Problems (2)
Summary
Memory Architecture