It takes 10 minutes to write 3GB and then 5 more minutes for the do not unplug

  • Shady_Shiroe@lemmy.world
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    19 days ago

    I have issues with a portable SSD that transfers large files quickly and if you click unmount, it unmounts quickly, but if you plug it in again, the file will show 0B, despite saying 600MB before hitting unmount. Doesn’t happen with small files, I learned that I just need to leave it plugged in for a few minutes after transfer before I unmount.

    It is an old SSD that still has NTFS and I would have made it into an Ext4 partition as I don’t use windows anymore, but I don’t want to move around terabytes of data to achieve this.

    Before anyone says anything, it is used to transfer files from a computer, that currently doesn’t have WiFi and where cellular is bad, to my NAS at home, so I technically have 3 copies, with one copy being correct, while the other 2 might be corrupt 0B files… I try to be vigilant till construction is done and we get WiFi.

    • n3m37h@sh.itjust.works
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      19 days ago

      This is because there is a DRAM cache. The drive writes to the cache then sends it to the NAND. If you disrupt this the drive will have data written but the last step is the drive writing the file location file for the drive. The drive sends the OS a signal stating the job is complete. Only then is it safe to remove/unmount