> Are you saying that most SSDs lose data they claimed was saved to stable storage in the event of power loss? Same with HDDs. That's why battery-backed hardwa

> Are you saying that most SSDs lose data they claimed was saved to stable storage in the event of power loss? Same with HDDs. That's why battery-backed hardware RAIDs (+ disabling this cache on the connected disks) are a thing in the first place. > What is the point of all that complication if the block device is just going to throw away those guarantees? Ask that storage manufacturers.