alt Hacker NewsI think SSDs also randomize where data ends up? But I'm not sure if that's true for existing files too.
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wtallis • yesterday at 5:34 PM
The filesystem may choose to store new data at different logical block addresses than older versions. The SSD will definitely choose to store those newly written blocks at different physical addresses, both for the sake of wear leveling and for performance, because a read-erase-rearite cycle on an entire NAND flash erase block (several MB at minimum) is a very slow operation.
Yes. All of the assumptions made with shred and sdelete apply only for spinning HDDs. SSDs require different methods of wiping.