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What's hard about an SSD drive?

What is different about having an SSD drive either internal or external. The missing manual for Sierra doesn't contain anything at all when i search for "ssd". For example, I've read that you shouldn't try to do "secure erase" by writing zeros onto an SSD. I've read that you should avoid putting a Mac to sleep because sleeping causes massive amounts of data to be written to the drive thus wearing it out faster. I'm puzzled by what it means to "put a hard drive to sleep" in energy preferences when the drive is SSD. Seems like the book needs a bit of extra info in places where it matters that the "hard" drives are solid state instead of spinning platters. And if it doesn't matter at all, it should say that too.
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  • Tai Hake (Official Rep) July 13, 2017 23:42
    Hi Walkercircle,
    The main focus on this book is the Operating System (Sierra) not the hardware, (which may vary from device to device), so specific types of hard drives aren't really covered. If you have device specific questions, we recommend contacting Apple support directly (or the manufacturer of the drive), as they would probably have a lot more wealth of knowledge about SSD drives / hard drives and how they should be treated in terms of power usage/ sleep.

    Tai H.
    Customer Service Rep,
    O'Reilly Media
    • Ever tried to find answers to an OS question when the finger can be pointed at hardware? those answers don't exist in any place I can find them. Or maybe they are part of an inconclusive discussion on a deeply technical site that no ordinary human should be reading. As SSD drives become more prevalent, someone has to provide paths to answers. I was hoping it could be O'Reilly.
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