Where Do SRMs Fit in Grid Architecture?

HRM

(site A)

DRM

(site B)

logical

query

physical File

transfer

requests

Network

...

HRM

(site C)

DRM

(site D)

...

? set of Logical files

logical query ?

Grid

Middleware

Services

logical file ?

? set of physical files

site-site inquiry ?

? network status

• Physical file

requests

A local request processing scenario

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