CERN staging approach: RFIO/RFCP + HPSS

File & catalog

management

Stage-in

requests

UNIX FS I/O

DB

pages

AMS

RFIO

daemon

HPSS

Server

Disk

Pool

RFIO calls

Migration

daemon

RFCP

(RFIO copy)

Disk

Server

(Solaris)

HPSS Mover

Tape

Robot

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