1 Reply Latest reply on Feb 26, 2016 2:30 PM by aleki_intel

    When I delete and then create a new partition in the same space how does controller know to erase all the blocks with data remaining from before the new partition was created?

    CBarnhorst

      This is not an issue I am struggling with, but just a question about how my SSD works.  Does an SSD controller do a secure erase when a partition is created and formatted (quick format)? 

       

      Scenario:  (Windows 10 Pro on a personal computer, 128GB SSD) Suppose I have an SSD which has been initialized and I have been running an OS and apps on it.  I decide to reinstall and choose to delete the partition and create a new one in its place before I reinstall.  Assuming " old data" remains in the NAND cells until GC, what does the controller do (or not do) when I reallocate the space by re-initializing it? 


      Obviously an HDD controller would simply use the space for new writes as needed because magnetic media works that way.  But what about SSDs at the time a new partition is created?