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Solid State Drive Based Energy E ffi cient Cloud Storage Jesus Ramos Alexis Je ff erson Ti ff any Da Silva Salma Rodriguez Jorge Cabrera Florida International University VISA Research Lab CIS 4911 - Senior Project Project Mentor: Dr. Ming

  1. Solid State Drive Based Energy E ffi cient Cloud Storage Jesus Ramos Alexis Je ff erson Ti ff any Da Silva Salma Rodriguez Jorge Cabrera Florida International University VISA Research Lab CIS 4911 - Senior Project Project Mentor: Dr. Ming Zhao December 4, 2012 (FIU/VISA) SSD Energy December 4, 2012 1 / 17

  2. Outline Background Proposed Approach Implementation Web Interface Evaluation (FIU/VISA) SSD Energy December 4, 2012 2 / 17

  3. Background Current System (FIU/VISA) SSD Energy December 4, 2012 3 / 17

  4. Background Proposed Approach (FIU/VISA) SSD Energy December 4, 2012 4 / 17

  5. Background Feasibility Study Disk-State Inc. from Inactive Disk-State Inc. from Inactive HDD-Inactive: +0 SSD-Inactive: +0 HDD-Idle: +4 SSD-Idle: +0.7 HDD-Active (Read): +7.2 SSD-Active (Read): +3.5 HDD-Active (Write): +7.6 SSD-Active (Write): +5.1 (FIU/VISA) SSD Energy December 4, 2012 5 / 17

  6. Implementation Cache Management Policy LRU (Least Recently Used) Assumes that pages that aren’t used for a long time will not be used in the near future LFU (Least Frequently Used) Pages that are used less frequently should be evicted first Changes to accommodate policies: Replace hash table with a radix tree ordered by sectors Use linked list to manage LRU and LFU schemes (FIU/VISA) SSD Energy December 4, 2012 6 / 17

  7. Implementation Dynamic Spin-down Daemon (FIU/VISA) SSD Energy December 4, 2012 7 / 17

  8. Power Monitoring Measuring Power Watts Up? Pro (FIU/VISA) SSD Energy December 4, 2012 8 / 17

  9. Power Monitoring Web Application Purpose: display data from measurements Important Features: View current power View past power tests (FIU/VISA) SSD Energy December 4, 2012 9 / 17

  10. Power Monitoring View Past Power (FIU/VISA) SSD Energy December 4, 2012 10 / 17

  11. Power Monitoring View Past Power (FIU/VISA) SSD Energy December 4, 2012 11 / 17

  12. Power Monitoring View Current Power (FIU/VISA) SSD Energy December 4, 2012 12 / 17

  13. Power Monitoring View Current Power (FIU/VISA) SSD Energy December 4, 2012 13 / 17

  14. Evaluation Evaluation Setup Collected power consumption measurements from a client and server node Three configurations: Baseline DM-Cache DM-Cache with daemon modifications Two types of benchmarks Simple file operations Workload emulation (FIU/VISA) SSD Energy December 4, 2012 14 / 17

  15. Evaluation IOZone: Micro Benchmarks (FIU/VISA) SSD Energy December 4, 2012 15 / 17

  16. Evaluation Filebench: Synthetic Workload (FIU/VISA) SSD Energy December 4, 2012 16 / 17

  17. Conclusion Conclusion Leveraged existing client-side caching and added new cache eviction policies Implemented disk spin-down daemon to exploit idle disk periods Developed a web application to display power consumption graphs Presented experiments showing the benefits of client-side SSD caching (FIU/VISA) SSD Energy December 4, 2012 17 / 17

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