[FUG-BR] HD Samsung HD502HI com tamanhos diferentes

[Nenhum_de_Nos]

On Wed, August 25, 2010 16:45, vic wrote:
> Comprei 2 HD Samsung HD502HI (SATA, 500gb, 5400rpm). Instalei o FreeBSD
> 8.1 i386 no primeiro e configurei o gmirror no primeiro disco. Ao tentar
> inserir o segundo disco no mirror, ele acusou que o provider ad6 era
> menor:
>
> gmirror insert gm0 /dev/ad6
> gmirror: Provider ad6 too small.
>
> Fiquei supreso ao notar que fdisk aponta tamanhos diferentes para os
> discos:
>
> fdisk /dev/ad4
> ******* Working on device /dev/ad4 *******
> parameters extracted from in-core disklabel are:
> cylinders=969021 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Figures below won't work with BIOS for partitions not in cyl 1
> parameters to be used for BIOS calculations are:
> cylinders=969021 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
>     start 63, size 976773105 (476939 Meg), flag 80 (active)
> 	beg: cyl 0/ head 1/ sector 1;
> 	end: cyl 1023/ head 15/ sector 63
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
>
> ---------------
>
> fdisk /dev/ad6
> ******* Working on device /dev/ad6 *******
> parameters extracted from in-core disklabel are:
> cylinders=969018 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Figures below won't work with BIOS for partitions not in cyl 1
> parameters to be used for BIOS calculations are:
> cylinders=969018 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
>     start 63, size 976770081 (476938 Meg), flag 80 (active)
> 	beg: cyl 0/ head 1/ sector 1;
> 	end: cyl 1023/ head 15/ sector 63
> The data for partition 2 is:
> <UNUSED>
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
>
> O primeiro disco (ad4) é um pouco maior que o segundo, como pode ser visto
> em cylinders e size. Como é possível?
>
> Placa-mão Intel D945GCL

eu n~ao tenho os links, mas vi algumas vezes jah nas listas @freebsd.org
que recomendam usar um label no disco e adicionar o label, e este ser
menor que o disco por alguns megabytes. qd li falavam sobre zfs.

fiz e recomendo :)

matheus

-- 
We will call you cygnus,
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