VMware View Performance Analysis of Logs (PAL) Utility

Introducing a new free tool for doing performance analysis on VMware View environments. Background I’ve been using the Performance Analysis of Logs (PAL) tool for years (since the first version released in 2007) to assist in analyzing, reporting, and visualizing performance logs in Windows environments.  The real power of PAL is the built-in threshold files that interpret Perfmon counters, providing an explanation of what the counter is, why it matters, and thresholds for warnings and critical to help quickly zero in on performance bottlenecks.  PAL includes templates for Windows, Hyper-V, … [Read more...]

Storage Basics – Part III: RAID

This is the third in a multi-part series on storage basics.  I've had some good feedback from folks in the SMB space saying that the first couple posts in this series have been beneficial, so we'll be sticking with some basic concepts for another post or two before we dive into some nitty-gritty details and practical applications of these concepts in a VMware environment.  In the second post of this series I introduced the concept of IOPS and explained how the physical characteristics of a hard disk drive determine the theoretical IOPS capability of a disk.  I then noted that you can aggregate … [Read more...]

ESXTOP Batch Mode Analysis with Windows Perfmon

I needed to grab some stats from my ESX hosts for off-line analysis so I fired up my trusty ESXTOP intent on using batch mode to capture a .csv formatted output.  I started to manually select the counters I was interested in while working in ESXTOP interactive mode (you can save your selected counters to the esxtop configuration file with the 'w' command) and thought that there must be a better way.  I found that better way in the VMware Performance Community: http://communities.vmware.com/docs/DOC-3930.  There is now a -a switch that can be used to include ALL performance counters.  I'm … [Read more...]