Pure Storage has introduced its DirectFlash Module (DFM), an architecture that eliminates the controllers of conventional SSDs. Instead, the software directly manages NAND flash storage. This promises to reduce latency in AI workloads, where every millisecond counts for training models.
How software controls flash directly 🚀
The DFM connects the NAND chips directly to the controller's controller, bypassing the firmware and integrated controller of a standard SSD. Pure Storage uses its Purity operating system to manage wear leveling, error correction, and data layout. This allows for more predictable latency and better performance in random reads and writes, crucial for AI inference.
Goodbye SSD, hello module with personality 😅
SSD manufacturers must be trembling. Pure Storage tells them: thank you for your controllers, but we manage flash better than you. It's like a chef deciding they don't need knives, preferring to bite the vegetable directly. The DFM is a module that looks like a giant RAM stick, but without the flexibility to swap it for another model. Either you like its software, or you're left with a high-tech paperweight.