Troubleshoot storage performance problems in your Linux system

SANs are growing in popularity because they assist with storage consolidation and simplification. And the main discussion point within the computing industry with regards to storage consolidation has always been performance. Explore different approaches to isolating a storage performance problem in your Linux system in this sample chapter from Linux Troubleshooting for System Administrators and Power Users . Learn how a storage device should perform and easy ways to get a performance measurement without expensive software. Explore the basic concepts of SCSI over Fibre Channel Protocol (FCP) using raw/block device files and volume managers. Next, study block size, multipath I/O drivers, and triping with a volume manager. Then, learn about filesystem performance and CPU loading. In addition to troubleshooting storage performance, investigate CPU bottlenecks and ways to find such events. Multiple examples are included throughout the chapter to demonstrate each concept.

Title: Linux Troubleshooting for System Administrators and Power Users
ISBN: 0131855158
Published: April 2006
Authors: James Kirkland, David Carmichael, Christopher L. Tinker, Gregory L. Tinker
Chapter: Chapter 4: Performance
Published by Prentice Hall