Welcome

Welcome! After a several year hiatus, I am back to publishing information on technical topics.

graphiteutils: input and output for Graphite

A collection of Graphite input tools and a Xymon monitoring script to consume data from Graphite and update Xymon column status based on Graphite data.

BETA(-) status: they are underdocumented and do not have any significant negative testing, but they are currently working in a production environment

svntools: Subversion tools for command line geeks

This is a project home page for my collection of tools to work with Subversion, mostly from the command line, Unix or Cygwin basis.

Status: BETA (-): they are underdocumented and do not have automated test suites. I have used them extensively and have shared them with colleagues.

Windows vs. Linux from an I/O perspective

For the past few weeks I've been trying out an SSD storage array.

I put a single virtual machine (Ubuntu Server 32 bit 512MB RAM) on it which is part of my monitoring system and receives about 30 metrics per second as well as being my primary display server for some very complex graphs. Storage experienced an average of 19 IOPs running that machine.

Yesterday we added 2 Windows machines, both Win2K8 64 bit with 4G of RAM. They are both idle. My storage consumption increased to average 79 IOPs steady state.

A most excellent backplane

A brief review of a SATA backplane

Tool of the Month: Puppet

Puppet is a tool for configuring a large number of machines by recipe and periodically checking that they are still in conformance. I have fallen in love.

LVM2 and Linux boot delays

In which I learn that sufficient logical volumes and/or snapshots can make a default Ubuntu Server installation unbootable, but there's a very simple fix.

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About Dewey

Dewey is...

* a cloud computing practitioner
* a distributed systems designer
* a software process expert including agile development, SCM techniques and build and test automation
* a large scale system administrator (it goes along with cloud computing and automated build and test)
* a developer in many languages (LISP, Java, PERL, C, C++, C#, ...)
* a data junkie
* a geek

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