Rep-RAID: An Integrated Approach to Optimizing Data Replication and Garbage Collection in RAID-Enabled SSDs

Explore an innovative approach to optimizing data replication and garbage collection in RAID-enabled SSDs through this 17-minute conference talk from LCTES 2023. Delve into the Rep-RAID scheme, which selectively replicates frequently updated data chunks and reorganizes new data stripes during garbage collection. Learn how this integrated method improves I/O performance by 16.7% and reduces tail latency by up to 17.9% at the 99.99th percentile compared to state-of-the-art RAID-enabled SSDs. Gain insights into the mathematical model guiding the replication process and understand how Rep-RAID addresses the challenges of increased write operations and parity computation in RAID technology for flash memory-based SSDs.