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Index                                                          315



            rice research project (grid computing),  solar energy. See also solar power
                184-186                        defined, 272
            Rohrs, Lynn, 163                   storage, 132
            ROHS (Restriction of Hazardous    solar power, 272-279. See also solar energy
                Substances) directive, 80      active and passive solar technologies, 273
            ROI (return on investment) for green data  as complement to wind power, 265
                centers, 7                     cost of generation, 254
            Rosenblum, Matthew, 51             CSP systems, 276-277
            run-of-the-river hydroelectric plants, 256  defined, 272
                                               experimental systems, 277-278
                           S                   peak power capacity statistics, 275-276
                                               photovoltaics, 273-275
            Sahin, Serkan, 194                 storage systems, 278-279
            Salesforce.com energy efficiency  solution-level monitoring, Montpelier,
                initiatives, 82
                                                  France case study, 192-194
            Samudrala, Ram, 185               SPEC (Standard Performance Evaluation
            SAN Volume Controller (SVC), 93-95    Corporation), 110
            Save Energy Now Data Center initiative, 45  feedback on EPA metrics, 115
            schools, government regulation and, 66-67  idle time power usage, 110-114
            screen savers, 27                 spiders, defined, 239
            Second Life, 5                    square footage. See physical space
            sensible heat removal, 141            requirements
            server consolidation, 6, 46, 88-89  Standard Performance Evaluation
             green IT checklist, 217              Corporation. See SPEC                                        ptg
             India case study, 199
            server power calculators, 225     standardization, 30
                                              standby power. See idle time power usage
            server usage in data centers, 5   state government, data center energy
            server virtualization                 efficiency actions, 65
             background, 86-87                state rankings for wind power, 269-270
             of blade servers, 103            storage of data, impact of server
             business benefits of, 103-104        virtualization on, 105-108
             cluster architecture for, 99-101  Storage Networking Industry Association.
             combining with blade servers, 104-105  See SNIA
             impact on data storage, 105-108  storage systems
             partitioning, 92                  hierarchical storage, 219
             techniques for, 92-93             for solar power, 278-279
             utilization diagram, 97-98
            Shakespeare, William, 205         storage virtualization, 107
                                               IBM SAN Volume Controller (SVC), 93-95
            Siedzik, Rich, 162                 tapes, 95
            Siemens, Ernst Werner von, 274    stored cooling, 132
            single-instance storage. See data  stored energy, 132-134
                deduplication
            small-scale hydroelectric plants, 256-257  Subramaniam, Ravi, 237
                                              Sun case study (green computer
            small-scale wind power generation,    manufacturers), 233-234
                271-272
            Smartbank, 192-194                 energy efficiency initiatives, 82
                                               telecommuting at, 83
            SNIA (Storage Networking Industry  supplemental cooling for data centers,
                Association), collaboration with   142-143
                The Green Grid, 48-49
            software efficiency, 12, 24-25, 37, 208  supply-chain issues, 19-20
                                              SVC (IBM SAN Volume Controller), 93-95
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