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Date:      Thu, 12 Jul 2012 21:56:55 +0200 (CEST)
From:      Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To:        Warren Block <wblock@wonkity.com>
Cc:        Kaya Saman <kayasaman@gmail.com>, miles kuo <miles.kuo@gmail.com>, freebsd-questions@freebsd.org
Subject:   Re: How to mirror the FreeBSD OS on two disks
Message-ID:  <alpine.BSF.2.00.1207122155350.3570@wojtek.tensor.gdynia.pl>
In-Reply-To: <alpine.BSF.2.00.1207121343450.47013@wonkity.com>
References:  <CAGpP9XOvVor7HmxDP7SFhc7AFnpSf-s%2BgXbkJsguiAo=xNvnVA@mail.gmail.com> <CAPj0R5L1=HaY1Bf-51FB59J6Q4pX1s4yDbzXoAAWRwei6yqt-A@mail.gmail.com> <alpine.BSF.2.00.1207110702490.76348@wonkity.com> <alpine.BSF.2.00.1207121649080.2235@wojtek.tensor.gdynia.pl> <alpine.BSF.2.00.1207121004560.47013@wonkity.com> <alpine.BSF.2.00.1207121941370.2744@wojtek.tensor.gdynia.pl> <alpine.BSF.2.00.1207121147350.47013@wonkity.com> <alpine.BSF.2.00.1207122037020.2852@wojtek.tensor.gdynia.pl> <alpine.BSF.2.00.1207121253040.47013@wonkity.com> <alpine.BSF.2.00.1207122105350.3122@wojtek.tensor.gdynia.pl> <alpine.BSF.2.00.1207121343450.47013@wonkity.com>

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>> 
>> no it doesn't
>
> You appear to be agreeing with me, but saying that your method does not 
> produce that problem.

sorry - possibly i missed something.

>> both method results in system bootable from both drives and proper 
>> disklabels.
>
> Yes, these are the same methods that can be used with MBR partitions. The 
> second works with GPT partitioning also.
>
true. first doesn't. for now i use only second method in spite of not 
using GPT. being able to de-mirror selectively a partition or not mirror 
some partitions at all is quite a big adventage.

definitely not possible with "hardware" RAID.



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