Approach

• Use BitMap index

  • for efficient processing of logical request

• Use Request Executer

  • For selecting replica and issuing multiple file request to DRM

• Use local DRM

  • To communicate to remote DRM/HRM
  • Initiate file transfers in parallel

• Use HRM

  • To schedule file staging from HPSS tape

• Use GridFTP to transfer files

• Use monitoring tool to track file transfer progress

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