adios io introduction yufei dec 10. system at oak ridge 672 osts 10 petabytes of storage 60 gb/sec =...
Post on 22-Dec-2015
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System at Oak Ridge
• 672 OSTs• 10 Petabytes of storage• 60 GB/sec = 480 Gbps aggregate performance (theoretical)• 225,000 compute cores
Prior Work
• Driver-level work for disk access• System-level strategies for effective buffering• Alternative file organizations (striping as Lustre)• Novel method
data staging alternative file formats or organizations better ways to organize and update file metadata
Adaptive I/O
• Dynamic and proactive methods for managing IO interference
shift work from heavily used areas of the storage system to those that are more lightly loaded.
IO Middleware