written by gunther gerlach-2011
This is a list of the most common mistakes that I have seen again and again along my career in small and large corporations in their intention of implement Agile as the primary development process. I hope while you are reading this, help you to understand what is the logic behind every single practice and try to adapt (shape) to fit into your environment. Remember, the goal is not just follow the best practices but to achieve the goals behind each one.
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Daily Scrums
Gunther Gerlach
WRITTEN BY GUNTHER GERLACH-2010
This morning I was in a meeting were the bigest concern was trying to find the way to deploy applications and Web-services to an Enterprise Production Enviroment without outbreak or interruption of the services. This is a pretty big statement in an environment where multiples deployments at different levels happen every day but, there is a way!
When Web-services are running from full tolerance and distributed environments, the options are usually putting down half of the servers by stopping traffic and deploying the updated Web-service then latter switchiing traffic back. The problems with this approach are many, like direct impact on users by latency on the systems, huge conversion when a new service fail or break the environment and, a headache to rollback, among others.
Gunther Gerlach
written by gunther gerlach-2009
This material covers the initial set up of an entire Cloud environment at Amazon Cloud infrastructure to run any web implementation solutions. This is the quickest answer that you may find out there, so let’s stat it!
We will cover all the steps to set up an entire environment in a cloud platform, from creating an user account at Amazon Web Services to creating and customizing Virtual machines (AMI), Virtual Storage Units, Virtual backups, Elastic IP’s, etc.
For all of you that don’t understand some of the acronyms used here, let’s just to look at them before to start:
Gunther Gerlach
written by gunther gerlach-2009
As you saw during the “Cloud shoot out” celebrated in Washington D.C., most of the attendees were third party technology vendors trying to get part of the $21 Billion budgeted to this transition.
Government goals: They are simple, decrease capital costs and streamline IT infrastructures. While keeping absolute control over security, privacy and trust.
Gunther Gerlach
Basically, moving to the cloud it shouldn’t impact your architecture with many changes as we believe. If your platform has a well design architecture based on independent layers (UI, Logic, Data, etc), adapting to work in a Cloud environment only mean to add a new layer of virtual environments to your n-tiers environment. Moving to the Cloud only become a problem when solutions don’t have a solid and well designed architecture and basically they are pushed back at the moment to adapt to this new age of technology.
Gunther Gerlach
written by gunther gerlach-2009
I have talked about virtualization and also about Cloud Computing but, what options are available to implement cloud computing Infrastructure implementations? Well, that is simple!
Hardware technologies for virtualization (hypervisor)
Hypervisor Virtualization has a layer (usually a thin Linux kernel shown here as a hypervisor or standard OS) that is loaded directly on the bare server. To allocate hardware and resources to the virtual machines (VMs), all hardware on the server must be virtualized. The next layer up shows each chip, board, etc. that must be virtualized so that it can be assigned to the VMs. Once in the VM itself, there is a complete copy of an operating system and finally the application or workload.
Gunther Gerlach
written by gunther gerlach-2011
