Author: Adam Liu

SSD Garbage Collection

A solid-state drive (SSD) is an electronic data storage device consisting of a controller, NAND flash, DDR (optional), and an interface/protocol connector. (e.g., PATA, SATA, and PCIe NVMe.) Unlike hard disk drives (HDDs), SSDs don't use mechanical parts to read,...

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AHCI vs. NVMe

In SSDs, AHCI (Advanced Host Controller Interface) and NVMe (Non-Volatile Memory Express) are both valid interface specifications for SSDs. The fundamental structure layer between SATA and PCIe interface (as shown in fig.1) highlights the role of AHCI and NVMe...

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