LASER INTERFEROMETER GRAVITATIONAL WAVE OBSERVATORY - LIGO - CALIFORNIA INSTITUTE OF TECHNOLOGY MASSACHUSETTS INSTITUTE OF TECHNOLOGY Document Type LIGO-T070102-00-Z 2007/09/05 Post-S5 Operating System for the LIGO Data Grid Paul Armor, Carsten Aulbert, Lisa Bouge, Duncan Brown, Gerald Davies, Erik Espinoza, Henning Fehrmann, Kevin Flasch, Steffen Grunewald, Ben Johnson, Tyler Petire Distribution of this draft: LIGO Scientific Collaboration California Institute of Technology Massachusetts Institute of Technology LIGO Project - MS 51-33 LIGO Project - MS NW22-295 Pasadena CA 91125 Cambridge, MA 01239 Phone (626) 395-2129 Phone (617) 253-4824 Fax (626) 304-9834 Fax (617) 253-7014 E-mail:
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[email protected] WWW: http://www.ligo.caltech.edu/ Processed with LATEX on 2007/09/05 LIGO-T070102-00 Contents 1 Summary 2 2 Introduction 4 3 Factors Considered 5 3.1 Security . 5 3.2 Stability/OS support . 6 3.3 Hardware Support . 6 3.4 Virtualization Support . 7 3.5 Middleware Support . 7 3.6 Application Support . 7 3.7 Filesystem support . 8 3.8 Support for Scientific Users and Developers . 8 3.9 Ease of Transition . 8 3.10 Ease of Maintenance . 9 3.11 Cost . 9 3.12 Uniformity . 10 4 LSC Computing Group Impact 10 5 Conclusion 10 1 Summary The current reference operating system (OS) for the LIGO Data Grid (LDG) is Fedora Core 4 (FC4). This OS is no longer supported and is scheduled to be upgraded shortly after the S5 run ends in September. The authors of this document have been requested by the LSC Computing Committee to select a replacement OS for this upgrade.