Can Thunderbolt pass ATA commands to attached HDDs?

Discussion in 'MacBook Pro' started by CliftonHighgrov, Apr 26, 2016.

  1. CliftonHighgrov macrumors regular

    CliftonHighgrov

    Joined:
    Oct 1, 2014
    Location:
    United Kingdom
    #1
    Hi,

    Does anyone know if a SATA drive connected via an eSATA adapter to a Thunderbolt port can successfully receive and act upon ATA commands? So: SATA -> eSATA -> Thunderbolt -> MacBook Pro.

    I'm primarily thinking of using the Sanitize Device command.
     
  2. killawat macrumors 65816

    Joined:
    Sep 11, 2014
    #2
    I was never able to find a way to do secure erase while in OS X but was able to do it easily using the (paid, $10) parted magic bootable, but that was to secure_erase the internal disks, no externals.

    I want to say that it should work but haven't tried personally. are you able to boot from your esata drives?
     
  3. JTToft macrumors 68040

    Joined:
    Apr 27, 2010
    Location:
    Aarhus, Denmark
    #3
    I'd say it should. TRIM is available on SSDs via Thunderbolt.
     
  4. iMacDragon macrumors 65816

    iMacDragon

    Joined:
    Oct 18, 2008
    Location:
    UK
    #4
    thunderbolt esata should be a fully native sata interface as far as the system is concerned, so yes, it should..
     
  5. CliftonHighgrov thread starter macrumors regular

    CliftonHighgrov

    Joined:
    Oct 1, 2014
    Location:
    United Kingdom
    #5
    Thanks for the replies, guys. When I get a chance I'll set the whole thing up and give it a bash.

    Good question. I know from testing that booting from USB 3 over the same adapter doesn't work, but I didn't try eSATA. Actually, I'm not sure I have any boot drives that I could test that scenario out on. But you've piqued my interest now…
     

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