Showing posts with label cloud. Show all posts
Showing posts with label cloud. Show all posts

The Green and Virtual Data Center Review

The Green and Virtual Data Center
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The Green and Virtual Data Center ReviewGreg Schulz has delivered with both a timely and informative book. With the economic meltdown occurring in 2008 every company has become focused on cost containment both for Cap Ex and Op Ex and the data center is in forefront. This is taking place at the same time as heighten awareness of our planets ecology and the impact of IT and data centers. As Schulz states in his summary chapter: "The objective is to lower cost, boost productivity, and improve service delivery to meet performance and availability objectives in a flexible or agile manner that also helps the environment."
In the first chapter Schulz coins the acronym PCFE for power, cooling, floor space and environmental to aggregate the IT infrastructure issues that are core to green initiatives. As I read through the book I substituted PC Fe for Politically Correct Iron because in my mind it reflects what Schulz calls the "green gap".This "green gap" is the separation of ecological and economic factors that are tied to the data center. On one hand we have the concerns about global warming, green-house gases, and carbon emissions while on the other we have data growth, power and cooling cost, stock holders looking for profits and the perceived cost to be green. The case is presented that this gap is more one of language and attitude as opposed to reality. If IT directors and facility managers implement best practices to design and run their data centers they will find in most cases they align with green objectives because it makes business sense.
The book is divided into four sections. In the first section there is a summary of the issues facing CIOs and IT directors around energy consumption, safety requirements for the disposal or equipment, and what green IT means. The second section looks at current trends in data center infrastructure and how they can be effectively monitored and managed. The third examines the technologies which are enabling virtualization and driving current trends like cloud computing. This is Mr. Schulz's area of core competency and has the most in depth coverage. In the final portion of the book there are practical applications of the concepts discussed in the other sections. I found the format to be a good organization that kept key areas together and the overall coverage of the topics to be of sufficient depth. I would recommend this book to anyone wants to understand the impact of "green IT" as well how the convergence of a number of technologies has created potential for virtual IT infrastructure.
About the reviewer
Paul Collins is CTO for Total Tec Systems a leading enterprise solution provider for data center infrastructure, and server and storage virtualization. He has a 20 year history of helping customers design, implement and manage IT infrastructure. Total Tec Systems is headquartered in Edison, NJ.
The Green and Virtual Data Center OverviewThe Green and Virtual Data Center sets aside the political aspects of what is or is not considered green to instead focus on the opportunities for organizations that want to sustain environmentally-friendly economical growth. If you are willing to believe that IT infrastructure resources deployed in a highly virtualized manner can be combined with other technologies to achieve simplified and cost-effective delivery of services in a green, profitable manner, this book is for you. Savvy industry veteran Greg Schulz provides real-world insight, addressing best practices, server, software, storage, networking, and facilities issues concerning any current or next-generation virtual data center that relies on underlying physical infrastructures. Coverage includes: Energyand data footprint reductionCloud-based storage and computingIntelligent and adaptive power managementServer, storage, and networking virtualizationTiered servers andstorage, network, and data centersEnergy avoidance and energy efficiencyMany current and emerging technologies can enable a green and efficient virtual data center to support and sustain business growth with a reasonable return on investment. This book presents virtually all critical IT technologies and techniques to discuss the interdependencies that need to be supported to enable a dynamic, energy-efficient, economical, and environmentally-friendly green IT data center. This is a path that every organization must ultimately follow. Take a tour of the Green and Virtual Data Center website.
CRC Press is pleased to announce that The Green and Virtual Data Center has been added to Intel Corporation's Recommended Reading List. Intel's Recommended Reading program provides technical professionals a simple and handy reference list of what to read to stay abreast of new technologies. Dozens of industry technologists, corporate fellows, and engineers have helped by suggesting books and reviewing the list. This is the most comprehensive reading list available for professional computer developers.

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Just Enough Software Architecture: A Risk-Driven Approach Review

Just Enough Software Architecture: A Risk-Driven Approach
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Just Enough Software Architecture: A Risk-Driven Approach ReviewThis a broad and deep book on all things software architecture except the architecting process (for process, one recommended read is "Process Software Architecting" by Eeles/Cripps). Several readerships will benefit from "Just Enough Software Architecture":
- As an experienced IT architect, I do not necessarily agree with everything in the book (this does not come as a surprise, as architects have opinions). That said, I certainly learned a lot that I can apply immediately on my projects and some of the more provocative statements challenge me to leave my comfort zone (or at least consider doing so).
- Junior architects can use the book both as a tutorial and as a reference when/while growing in their profession.
- Developers with a "who needs architects" mindset (hopefully) will understand architects and modelers much better after having read this book, and appreciate the value of archtecture.
Things I liked in particular:
- Overall vision and message of pragmatism sent
- The risk-driven approach increases chances to get accepted both in agile development and in more traditional architecture communities
- There is a lot of practical advice e.g. in Chapters 10, 11 and 15
- The author is in command of a large body of relevant related work (both industra and academia) and puts them in perspective adequately
- Editorial quality: structure, figures, command of the English language (some words and expressions a bit be hard to comprehend for non-native speaker)
Some room for improvements (2nd edition?):
- Not all metaphors and analogies work internationally, e.g. not all IT people are sports fans that follow baseball or know what a rookie is
- The connection between parts 1 and 2 could be a bit stronger, even if loose coupling generally is a good thing; e.g., some more backward references
In summary, I'd say Just Enough Software Architecture is a highly recommended read for every architect in touch with development reality and every developer with a desire to build complex systems that will stand the test of time.Just Enough Software Architecture: A Risk-Driven Approach OverviewThis is a practical guide for software developers, and different than other software architecture books. Here's why:
It teaches risk-driven architecting. There is no need for meticulous designs when risks are small, nor any excuse for sloppy designs when risks threaten your success. This book describes a way to do just enough architecture. It avoids the one-size-fits-all process tar pit with advice on how to tune your design effort based on the risks you face.
It democratizes architecture. This book seeks to make architecture relevant to all software developers. Developers need to understand how to use constraints as guiderails that ensure desired outcomes, and how seemingly small changes can affect a system's properties.
It cultivates declarative knowledge. There is a difference between being able to hit a ball and knowing why you are able to hit it, what psychologists refer to as procedural knowledge versus declarative knowledge. This book will make you more aware of what you have been doing and provide names for the concepts.
It emphasizes the engineering. This book focuses on the technical parts of software development and what developers do to ensure the system works not job titles or processes. It shows you how to build models and analyze architectures so that you can make principled design tradeoffs. It describes the techniques software designers use to reason about medium to large sized problems and points out where you can learn specialized techniques in more detail.
It provides practical advice. Software design decisions influence the architecture and vice versa. The approach in this book embraces drill-down/pop-up behavior by describing models that have various levels of abstraction, from architecture to data structure design.

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