Tech: Using Kerberized Lustre Over the Wide Area Network for High Energy Physics Data
Abstract: This paper reports the design and implementation of a secure, wide area network, distributed filesystem by the ExTENCI project, based on the Lustre filesystem. The system is used for remote access for analysis of data from the CMS experiment at the Large Hadron Collider (LHC) , and from the Lattice Quantum ChromoDynamics (LQCD) project. Security is provided by kerberos with additional fine grained control based on lustre ACLs and quotas. We show the impact of kerberos on the I/O rates of CMS and LQCD applications on client nodes, both real and virtual.
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