PLP (Power Loss Protection) prevents data loss during sudden power failures.

PLP stands for Power Loss Protection and refers to protective mechanisms in SSDs that still provide enough energy in the event of sudden power loss to safely write cache contents to NAND. This is especially important for loggers because it reduces the probability that currently recorded data or mapping tables will be lost during voltage loss. Note: In logging tooling, depending on the manufacturer, PLP can additionally also stand for a protocol.