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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:2.0
BEGIN:VEVENT
DTSTART:20151119T203000Z
DTEND:20151119T210000Z
LOCATION:18AB
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: The increasing data demands from high-performance computing applications significantly accelerate the capacity, capability, and reliability requirements of storage systems. As systems scale, component failures and repair times increase, with significant impact to data availability. A wide array of decision points must be balanced in designing such systems.=0A=0AWe propose a systematic approach that balances and optimizes both initial and continuous spare provisioning based on a detailed investigation of the anatomy and field failure data analysis of extreme-scale storage systems. We consider both the component failure characteristics, the cost and the impact at the system level simultaneously. We build a provisioning tool to evaluate different provisioning schemes and the results demonstrate that our optimized provisioning can reduce the unavailable duration by as much as 52% under a fixed budget. We also observe that non-disk components have much higher failure rates than disks, therefore warrant careful considerations in the overall provisioning process.
SUMMARY:A Practical Approach to Reconciling Availability, Performance, and Capacity in Provisioning Extreme-Scale Storage Systems
PRIORITY:3
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