About LDR

This description is taken from http://www.lsc-group.phys.uwm.edu/LDR/

The LIGO Data Replicator (LDR) is a tool for making copies of or replicating data sets to the member sites of a Virtual Organization or DataGrid. It is built on top of well-known toolkits and packages including the Globus Toolkit, pyGlobus (a Python wrapper for Globus), Python, and MySQL.

Though it was designed and implemented for the LIGO community it is flexible enough to be used in many data replication scenarios. It has the concept of published data sets which are subscribed to. LDR ensures that the subscribed data gets transferred reliably. It may be a bit too complex a solution for one off data replication.

LDR user documentation

The main use of LDR is to replicate data sets. End users should interact with LDR system administrators to make sure that the right data is being replicated and stored in the correct way. There is not much else for a user to do.

Status of ARCS LDR services

• LDR is in production at the ANU replicating data sets for LIGO researchers
• LDR has also been implemented to replicate data for the SkyMapper project

LDR technical documentation

-- StephenMcMahon - 12 Mar 2008