Date: Tue, 30 Oct 2012 12:17:04 -0700 From: freebsd@johnea.net To: freebsd-questions@freebsd.org Subject: Re: 9.1 and gmirror with GPT? Message-ID: <509027C9.4080709@johnea.net> In-Reply-To: <alpine.BSF.2.00.1210271655200.69926@wonkity.com> References: <5082EAEE.4040609@johnea.net> <50833F78.1060609@bnrlabs.com> <alpine.BSF.2.00.1210210827530.70277@wonkity.com> <5085C743.8000508@johnea.net> <alpine.BSF.2.00.1210221631250.13158@wonkity.com> <5086C7EB.9020104@johnea.net> <alpine.BSF.2.00.1210231837130.21493@wonkity.com> <508C2043.8070205@johnea.net> <alpine.BSF.2.00.1210271530190.69926@wonkity.com> <508C5BE6.4000405@johnea.net> <alpine.BSF.2.00.1210271655200.69926@wonkity.com>
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On 2012-10-27 16:01, Warren Block wrote: > On Sat, 27 Oct 2012, freebsd@johnea.net wrote: > >> I ended up just ignoring the not aligned warning from the "gpart add -t freebsd" and went on to add the freebsd-swap and freebsd-ufs partitions with "-a 4k" option. >> >> Do you think I'm aligned? > ... >> => 63 3907029104 mirror/gm0 MBR (1.8T) >> 63 63 - free - (31k) >> 126 3907028979 1 freebsd (1.8T) >> 3907029105 62 - free - (31k) >> >> => 0 3907028979 mirror/gm0s1 BSD (1.8T) >> 0 2 - free - (1.0k) >> 2 16777216 1 freebsd-swap (8.0G) >> 16777218 3890251760 2 freebsd-ufs (1.8T) >> 3907028978 1 - free - (512B) > > The slice starts at block 126, and then the swap partition starts an additional two blocks into the slice, which is block 128, evenly divisible by 8 (4096 = 512 * 8). > > The freebsd-ufs partition starts at 126+16777218, which is also evenly divisible by 8. > > So yes, that looks aligned to me. Thanks again Warren! I think I finally have this 9.1 system up and running with MBR and gmirror aligned to 4K sector size. After getting the gm0 running, I did a dump/restore to transfer the live system from ada0 to gm0, before adding ada0 to the mirror. I ran into the journaled soft-updates issue, and again relied on one of your posts for the solution: http://forums.freebsd.org/showthread.php?t=31257 Thank You for your contributions to FreeBSD! johnea
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