NERSCPowering Scientific Discovery Since 1974

Nicholas Balthaser

Nicholas Balthaser
Storage Systems Group
Phone: (510) 486-6427
Fax: (510) 486-4316
1 Cyclotron Road
Mail Stop 943-256
Berkeley, CA 94720 US

Biographical Sketch

Nick is responsible for deployment and administration of servers, storage, and network technologies in support of the NERSC HPSS systems.  Additionally he is responsible for testing and deployment of storage client interfaces such as HSI and HTAR on NERSC compute platforms and transfer nodes.  He does continuing work with members of the DOE Science Grid community and the NERSC Outreach, Software, and Programming group to provide innovative storage interfaces, including connecting the NERSC archive to the web-based Globus data transfer service.  Prior to joining NERSC in 2003 Nick ran weather forecasting systems for several online weather providers and worked as a systems analyst at Wells Fargo Bank.  Before joining the Storage Systems Group Nick managed Linux compute platforms in the Computational Systems Group and administered FreeBSD systems in the NERSC Server Team.  Nick holds a bachelor's degree from San Francisco State University.


Nicholas Balthaser, Lisa Gerhardt, NERSC Archival Storage: Best Practices, Joint Facilities User Forum on Data-Intensive Computing, June 18, 2014,

Nick Balthaser, NERSC; Lisa Gerhardt, NERSC, Introduction to NERSC Archival Storage: HPSS, February 3, 2014,

N. Balthaser, GlobusOnline/HPSS Live Demo, HUF 2013, November 5, 2013,

Live demonstration using the GlobusOnline data transfer software to store files to the NERSC archive for 2013 HPSS Users Forum meeting.

N. Balthaser, LBNL/NERSC Site Report: HPSS in Production, HUF 2013, November 5, 2013,

Overview of HPSS infrastructure and practices at LBNL/NERSC for 2013 HPSS Users Forum meeting.

N. Balthaser, W. Hurlbert, T10KC Technology in Production, May 9, 2013,

Report to 2012  Large Tape User Group meeting regarding our production statistics and experiences using the Oracle T10000C tape drive.

N. Balthaser, J. Hick, W. Hurlbert, StorageTek Tape Analytics: Pre-Release Evaluation at LBNL, LTUG 2012, April 25, 2012,

A report to the Large Tape Users Group (LTUG) annual conference on a pre-release evaluation of the new software product, StorageTek Tape Analytics (STA).  We provide a user's perspective on what we found useful, some suggestions for improvement, and some key new features that would enhance the product.


N. Balthaser, D. Hazen, "HSI Best Practices for NERSC Users", May 2, 2011, LBNL 4745E,


In this paper we explain how to obtain and install HSI, create a NERSC authentication token, and transfer data to and from the system. Additionally we describe methods to optimize data transfers and avoid common pitfalls that can degrade data transfers and storage system performance.