Green Storage

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The Abstracts

Green Storage I - Economics, Environment, Energy and Engineering
SW Worth

Even non-geeks are becoming aware of the environmental impacts (especially energy costs) associated with data storage. Discussions of “Green Storage” require understanding of fundamental concepts common to all components of a datacenter. This SNIA Tutorial covers the concepts of Economics, Environment, Energy, and Engineering that are necessary to participate in the dialogue, whether you are a manager or a hands-on I.T. professional. Wherever possible, the examples used refer to Storage, but detailed focus on Storage components and technologies is left for Part II. We start with definitions of “Green” used by various groups, covering various motivations for making “Green” decisions for your organization. This requires some economic theory, but you will be rewarded with a new-found ability to explain “Cap-and-Trade” management of Carbon and “SOx” (Sulfur Oxides, not Sarbanes-Oxley!) at parties. This leads naturally to coverage of various environmental regulations and initiatives (e.g. ROHS, WEEE, Energy Star) that affect manufacturers and end-users of storage components or computers. We will quickly review basic engineering topics relevant to understanding 'Green', including stuff you may have previously avoided, such as environmental chemistry, thermodynamics, energy vs. power, and heat transfer. (Examples include conversion losses, AC and DC power choices, and power supply efficiency.) Since much of the focus in I.T. is on energy costs, we’ll spend some time understanding energy supply and pricing (focused on the U.S. market), and provide some negotiating alternatives for dealing with your friendly energy suppliers. We will review current problems in data center design, including increasing computational and storage density and the resulting energy and cooling issues. All of this will come together to help guide your design process towards a better allocation of capital expenses (CapEx) and operational expenses (OpEx) to lower your TCO. Bottom-line: After this session you will be armed with the knowledge you need to be part of the Green decision-making process for your datacenter, so those pesky server-geeks don’t dominate the discussion!

Learning Objectives

  • Understand what various groups mean by 'Green', especially as this term relates to storage network components and systems.
  • Understand some of the factors that should (or will) motivate your interest in 'Green‘ storage, including regulation, competition, and TCO.
  • Understand why 'OpEx' (Operating expenses) can outweigh 'CapEx' (Capital expense) in TCO models, and how 'Green' factors increasingly influence OpEx.

Green Storage II - Metrics and Measurements
Dr. Erik Riedel and Dr. Patrick Chu

TThis tutorial will cover storage-specific topics related to energy-efficiency and outline the current state of the industry.  We will discuss the range of technologies that are currently considered "green storage", including a discussion of metrics for measuring,managing and designing for power in storage systems.  We will also briefly outline ongoing efforts in the SNIA Green Storage TWG and in partnership with The Green Grid, the DMTF and other industry groups.

This tutorial assumes that you are familiar with the basic concepts of Storage, and that you know something about the Energy and Engineering topics covered in the "Green Storage I" tutorial.  This session is focused on storage-specific aspects of "green" (especially energy and power), covering the following technical topics:

  • Metrics and Modeling - what matters for storage power and how can it be measured.
  • How Idle Is Your Storage? - balancing energy efficiency with the various background activities that are part of the regular care and
    feeding of large-scale data storage.
  • Individual storage devices and associated media, including hard disk drives, tape drives, optical devices, and solid-state storage.
  • Aggregate devices, including disk storage arrays with varying redundancy (JBOD and RAID).
  • Comparison of tape libraries and virtual tape (VTL) systems.
  • Use of spin-down and similar techniques to save power for idle data.
  • Compression, de-duplication and similar techniques to reduce the number of unintended or excess copies of data.

Learning Objectives

  • Understand the storage-specific aspects of "green" (especially energy and power) for storage components and aggregated products (e.g. JBOD, RAID, MAID)
  • Outline considerations in how to measure and model storage energy and power in storage systems.
  • Be introduced to technologies that reduce the ongoing energy costs of maintaining the data you manage.

Technologies for Green Storage
Dr. Alan Yoder

Hardware efficiencies are essential to reducing the amount of power used by storage. Equally real savings are obtained by reducing the number of copies of your data that must be made, kept and managed.  This talk presents a number of technologies, ranging from thin provisioning and virtualization to flywheel UPSs, that each address part of the problem, and illustrates the impact that each technology can have on your data center footprint.

Learning Objectives:

  • Learn about snapshots, deduplication, writeable clones, compression, thin provisioning, and other green storage technologies.
  • Learn how each green storage technology can help your business reduce its data center footprint.

Building the Green Data Center:  Towards Best Practices and Technical Considerations
Rick Bauer

"In the United States alone, buildings account for: • 65% of electricity consumption, • 36% of energy use, • 30% of greenhouse gas emissions, • 30% of raw materials use, • 30% of waste output (136 million tons annually), and • 12% of potable water consumption.Designing and building greed data centers can have a significant impact on the environment and a company's bottom line. A green data center is a repository for the storage, management, and dissemination of data in which the mechanical, lighting, electrical and computer systems are designed for maximum energy efficiency and minimum environmental impact. The green data center has moved from the theoretical to the realistic, with IT leaders being challenged to construct new data centers (or retrofit existing ones) with energy saving features, sustainable materials, and other environmental efficiencies in mind.

This tutorial will survey the wide variety of options and issues that the data center designer must keep in mind in these matters, as well as illustrate how government regulation and certification will be affecting the data centers of the future. Analysis will include the US Green Building Council LEED standard, as well as other regulatory standards that are driving green data center construction.

Learning Objectives

  • "The construction and operation of a green data center includes advanced technologies and strategies. Learning Objective #1 is to identify and describe 10 different technology options for a builder to consider.
  • Delineation of the Leadership in Energy and Environmental design (LEED) Green Guilding Rating System. LEED is the nationally accepted benchmark for the design, construction and operation of high performance green buildings. LEED gives building owners and operators the tools they need to have an immediate and measurable impact on their buildings’ performance. LEED promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.