Date: Mon, 02 Dec 2013 21:07:04 -0500 From: "Mike." <the.lists@mgm51.com> To: freebsd-questions@freebsd.org Subject: Re: gmirror, gpart and MBR vs GPT in the Handbook Message-ID: <201312022107040820.024FB565@smtp.24cl.home> In-Reply-To: <alpine.BSF.2.00.1312021411420.15921@wonkity.com> References: <201311301303210813.05DE187E@smtp.24cl.home> <alpine.BSF.2.00.1311301352140.99113@wonkity.com> <201312011121580096.005D00FB@smtp.24cl.home> <alpine.BSF.2.00.1312011016490.5791@wonkity.com> <201312021213320528.00673D5F@smtp.24cl.home> <alpine.BSF.2.00.1312021411420.15921@wonkity.com>
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On 12/2/2013 at 2:21 PM Warren Block wrote: |On Mon, 2 Dec 2013, Mike. wrote: | |> My understanding is that MBR can be used with drives only up to |> and including 2TB in size. So if I use MBR, the maximum drive |> size I could use would be 2TB. Is that correct? | |As far as I recall, MBR expects 512-byte blocks and uses 32-bit values. |The total number works out to 2TB (2^32*512). | |Just recently, someone in the forums had an external drive, MBR format, |but 4K blocks. There were problems, although I don't know if FreeBSD |was at fault. | |I have not tried MBR on a drive larger than 2TB. I suspect it would be |safe to use the first 2TB and ignore the rest, but that really ought to |be verified. ============= At this point, the drives are 2TB, no more. So I should be OK. Thanks.
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