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The Case for Versatile Storage System

This paper discusses the case for a versatile storage system that addresses underutilized resources and application specialization in large-scale platforms. The system can be configured at deployment time and coupled with the target application, leading to higher performance and scalability. The architecture includes access modules, storage nodes, managers, and dispatchers to handle various operations such as metadata management, data security, and communication.

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The Case for Versatile Storage System

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  1. The Case for Versatile Storage System Samer Al-Kiswany, Abdullah Gharaibeh, Matei Ripeanu NetSysLab The University of British Columbia

  2. Introduction Versatile Storage System for large-scale platforms: • Underutilized resources • Application specialization • The Deployment Approach: • Configured at deployment time • Coupled with the target application Potential: Higher performance and scalability HotStorage ‘09

  3. Platform Example – Argonne Blue Gene/P 2.5K IO Nodes 160K cores GPFS IO rate : 8GBps = 51KBps / core !! 10 Gb/s Switch Complex Torus Network 24 servers 2.5 GBps per node 3D Torus 850 MBps per 64 nodes Tree Under utilized resources. HotStorage ‘09

  4. Workload Characteristics Workflows – Execution stages communicating through intermediate temporary files Input file Compute Output file Source [Zhao et. al. SIGMOD record ‘05] HotStorage ‘09

  5. Workload Characteristics Workflows – Execution stages communicating through intermediate temporary files Tibi Stef-Praun, et. al. [e-Social Science ‘07] HotStorage ‘09

  6. Workload Characteristics Workflows – Execution stages communicating through intermediate temporary files Workflows  HotStorage ‘09

  7. Workload Characteristics Data Analysis– Analyze/search large data sets (e.g. BLAST) BLAST Match new sequences with a data set of known sequences (linear search) Workflows –Data Analysis  HotStorage ‘09

  8. Workload Characteristics Checkpointing Workflows  Data Analysis  Checkpointing HotStorage ‘09

  9. Workload Characteristics Workflows  Data Analysis  Checkpointing HotStorage ‘09

  10. Opportunities • Specialization: Application specialized storage • Under utilized resources • Compute node storage space • Interconnect bandwidth HotStorage ‘09

  11. Our Solution Versatile Storage System: Application specialized • The Deployment Approach: • Configured at deployment time • Life time coupled with the target application Potential : Higher performance and scalability HotStorage ‘09

  12. Access Module Storage Node Versatile Storage System Architecture Manager (Metadata management) Compute Node HotStorage ‘09

  13. Queue Application IO Metadata Operations Buffer Manag. Dispatcher Consistency Content Addressability Data Security Communication Agent … Access Module Storage Node Queue Metadata Operations Buffer Manag. Dispatcher Application IO Configurable / Extensible IO Pipeline HotStorage ‘09

  14. Access Module Storage Node Consistency Content Addressability Data Security Communication Agent Dispatcher … Configurable / Extensible IO Pipeline Queue Application IO Metadata Operations Buffer Manag. Dispatcher Consistency Content Addressability Data Security Communication Agent … HotStorage ‘09

  15. Access Module Header Dispatcher Request data Storage Node Metadata Service API Configurable / Extensible Support Access Module Queue Metadata Operations Buffer Manag. Dispatcher Application IO NM Communication Agent … Manager Request New Module Support … HotStorage ‘09

  16. Preliminary Evaluation – Real Application DOCK6 workflow: Overall: 1.52x HotStorage ‘09

  17. Summary Versatile Storage System • Underutilized resources • Application specialization • The Deployment Approach: • Configured at deployment time • Coupled with the target application Potential: Higher performance and scalability HotStorage ‘09

  18. Not addressed – Future work • Configurability / extensibility evaluation • Complete prototype • Evaluation with a diverse set of applications • Configuration • Application profiling • File system automated configuration HotStorage ‘09

  19. Thank you netsyslab.ece.ubc.ca

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