NVME FDP（Flexible Data Placement）的出现，就是通过灵活的数据放置使主机服务器能够更好地控制数据在 SSD 中的位置。 目标是减少写入放大以提高性能。 谷歌和Meta向NVME协议组织提交了Flexible Direct Placement TP4146提案，小编在nvme spec 2.0c还没查到，根据最新消息， 预计在NVME spec 2.5正式合入。 通过示意图，来看看FDP的作用。 如下图，来自应用程序 A、B 和 C 的混合数据被写入介质中可用的“超级块”。 然后，应用程序 A的数据被删除，删除后会触发盘 …

2022年，NVMe协议发布了一个新的技术 FDP (Flexible Data Placement)， 其主要通过对应用友好的空间分配技术来降低写放大，据称在测试中写放大系数约等于1。从而，大大降低了闪存的应用成本。

2023年9月7日 · Flexible data placement (FDP) is a possible forthcoming feature of the NVMeTM specification that has been proposed by Google and Meta.The purpose of this feature is to reduce the write amplification (WA) when multiple applications are writing, modifying and reading data on the same device.

2023年10月11日 · 2021年，Google带着Flexible Data Placement（FDP）的概念和自研的Smart FTL应用进行宣讲，并联合Meta在2022年逐步把FDP推入到NVMe标准协议。 近期，FDP议题在OCP进行了多次演进和讨论，逐步得到业界的重视。

• An Endurance Group that supports FDP • Supports one or more FDP configurations • A Host enables specific FDP configuration in an Endurance Group • Write commands allowed to specify and an Reclaim Group and Reclaim Unit Handle that indicates the Reclaim Unit to place the LBAs

2025年1月15日 · nvme fdp是一项令人兴奋的新型ssd数据放置技术。 这是业界多年来尝试解决SSD写入放大因子（WAF）问题的不同方法后得出的成果。 在为主机提供适度数据放置控制的同时，它确保数据放置目标得以实现，而不会给主机软件栈带来额外的负担。

2025年1月15日 · The Flexible Data Placement (FDP) technology has garnered significant attention in the NVMe SSD world lately. This blog post gets into the details of NVMe FDP and introduces the key concepts. We will discuss how FDP fits into the NVMe ecosystem and what it means to integrate FDP into a software stack.

What is Write Amplification (WA)? When the host sends write data to the device it is additional data that is written to the media. Why is Write Amplification Undesirable? What would this mean? How did Flexible Data Placement come about? All Media blocks must be garbage collected resulting in a WAF ~3.

NVMe Controller may support high bandwidth DDR5 DRAM, that can be used as Write Buffers in Write IO path without performance loss • Dual Channel DDR5 bandwidth: 4.8GHz*8B*0.7 (DDR efficiency) =

NVM Express®(NVMe®) released the ratified technical proposal TP4146a Flexible Data Placement (FDP) that defines a new method for placing host data (logical blocks) into the SSD in an effort to reduce SSD Write Amplification Factor (WAF). This provides the host a mechanism to control which of its data is placed into different sets of physical ...