Date: Fri, 06 Dec 2013 02:36:44 -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: <201312060236440793.085C6E77@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. ============= Bringing some closure to this thread.... *** gmirror is working fine for me *** As I type this, all my data has been transitioned, and I am listening to tunes originating from the gmirror raid array. Music is flowing. Life is good here. :) Many thanks for the help and assistance provided by all those who responded and jumped in to help. Mike.
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