Work Samples

eFollett.com traffic optimization

Welcome to 1999

efollett.com

=

WebShere Application Server 3.0

We built a website! Let's advertise during the Super Bowl!

3 IBM270 WAS servers

Roughly 50,000 unique visitors within 5 minutes of air

.......

WAS baseline of ~20% CPU active, spiked to 80% with just a few user sessions

How do we spread out the load without buying more IBM hardware, WAS licences?

2X Intel load balancers

SSL termination/acceleration

Sticky sessions to app servers

Proprietary Active/Active

2X Dell 1U dual-CPU

Images for every book

Database -> structured URL

(and a few subdirectories so "ls" would go back to working)

"tux" httpd module

images.efollett.com ssl cert

work with the devs!

No more Super Bowl commercials!

But, able to weather start of semesters

Modernize!

Heartland Payment Services

Using Kickstart to provision thin devices into RHEL over the public internet

initrd may be the most arcane thing I've had to deal with

Modernize!

Kohl's

AIX -> Linux migration

Ops staff acquiescent, but not thrilled

AIX package management is stone-age, so let's talk about how Linux does it better

Designed a customized class for the Ops staff, trained them to install, manage, build and customize RPMs

End result, excited Ops staff

All About OpenShift

x.509 certificate management

2... 10... 30... 80!?

Script it!

Monitor it!

Automate it!

Upstream it!

Modernize it!

Paravirt -> HVM migration

Magnetic/standard -> GP2 migration

v2 Compacting

Recurring themes!

• innovate
• automate
• collaborate

What's next?