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Learn about a novel cluster file system architecture through this 17-minute conference presentation that introduces Okapi, a system that separates data striping from redundancy grouping to optimize both performance and durability. Explore how traditional cluster file systems couple data distribution mechanisms, creating significant inefficiencies, and discover Okapi's innovative approach to decoupling these functions. Understand how this separation enables independent optimization of IO efficiency through configurable data striping and durability through flexible redundancy grouping based on reliability and space efficiency goals. Examine the system's ability to dynamically change erasure coding schemes in response to data temperature or disk failure rate changes without requiring data rewrites. Gain insights from the evaluation of an Okapi prototype that demonstrates the practical benefits of this decoupled architecture for modern distributed storage systems.
