How to Write to SSDs [pdf] | Hacker News

NVMe 2.1’s Flexible Data Placement (FDP) lets software tag related writes so SSDs can place them together.

The idea is to give storage software more control over flash placement, similar in spirit to zoned or open-channel approaches.

Supporters say FDP could reduce write amplification and improve performance for workloads like SSDFS.

Its real-world impact is still limited by sparse enterprise SSD support and slow adoption.