Power Loss Protection on SSDs Can Save You Time and Money

Most file systems will do most of the workload asynchronously and only do the synchronous version with the write barriers if the application asks for it. Without some kind of acceleration like this, a sync write workload is incredibly slower than a normal asynchronous workload. In the ZFS world specifically, there's not really a whole lot of point to having a log VDAV if you're using power loss protected SSDs in your main storage.