Flexible Data Placement

High-resiliency SSD architecture requires additional components, such as FDP and Latency Monitor

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Vertically integrated high-resiliency elements include Flexible Data Placement (FDP) and OCP Storage Workgroup's Latency Monitor (LM)

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From Version 1 to Version 2.5, OCP SSD specification has included resilience components

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Meta and Google say NVMe may support FDP. When numerous apps write, change, and read data on the same device, WA decreases

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Since Flexible Data Placement reduces garbage collection (GC), it makes sense that it would also reduce latency outliers

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An 8TB Micron 7500 SSD was preconditioned to 1TB in this instance, and until the physical media filled and GC began, IOs were limited to that 1TB

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Version 2 of the OCP Datacenter NVMe SSD Specification formalised Meta's efforts and critical demands with the SSD Latency Monitor

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Micron is adopting the architecture and design of High Resiliency SSDs For more details govindhtech.com

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