Modern SSDs treat these functions very similarly, although it can take a few minutes for the drive to bulk erase the cells. Translating Logical Block Addresses (LBA) to Physical Block Addresses (PBA) What’s the difference? If we avoid talking about hard disk drives (HDD) and acknowledge SSDs work differently, a Secure Erase wipes the mapping or address table of the drive while the Sanitize additionally erases the cells immediately.
In either case, it’s a good policy to engage in a Secure Erase or Sanitize function to be sure the drive is clean. Other times, they want to migrate or sell their SSD and want to make sure existing data cannot be retrieved. Sometimes users want to return their drives to a like-new condition.
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