Date: Wed, 30 Jan 2013 08:22:19 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Artem Kuchin <matrix@itlegion.ru> Cc: freebsd-questions@freebsd.org Subject: Re: Software raid VS hardware raid Message-ID: <alpine.BSF.2.00.1301300815300.38610@wonkity.com> In-Reply-To: <51092ECA.6070808@itlegion.ru> References: <5106E301.4070707@itlegion.ru> <ke7v7a$r0d$1@ger.gmane.org> <5107A500.4030902@itlegion.ru> <alpine.BSF.2.00.1301290749460.27370@wonkity.com> <5107FC3C.4030701@itlegion.ru> <alpine.BSF.2.00.1301291353570.30931@wonkity.com> <51090721.2010606@itlegion.ru> <alpine.BSF.2.00.1301300635130.37822@wonkity.com> <51092ECA.6070808@itlegion.ru>
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On Wed, 30 Jan 2013, Artem Kuchin wrote: > 30.01.2013 18:06, Warren Block: >>>> >>>> GPT partitions should work, just limit it to one mirrored partition per >>>> drive. >>> >>> Please, clarify what you mean here. >> >> If only one GPT partition on a drive is mirrored with another GPT partition >> on another drive, head contention never comes up. There is only one >> mirror. >> >> It does nearly eliminate the usefulness of GPT partitioning. >> > Um... and how can i do that if i have a simple mirror with two drives and > want to mirror everything on them? As i understand i will have at least > bootable, swap and ufs parttions on those drives, that is 3 partitions at > least. If you want to use the same drive for booting, it's possible. Create all three partitions on both drives manually. Then mirror the freebsd-ufs partition only. The contents of the freebsd-boot partition don't change often, and swap does not have to be mirrored. Not that it's easy or convenient, but it's an option.
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