On Fri, 22 Jul 2011, Tanguy Herrmann wrote:
I've read somewhere (sorry I can't remind it) that the raid still could be unaligned by using the whole disk, and so we had to create a partition aligned (by using fdisk -u, then creating a partition beginning at LBA 64 at least, and that would span on a length multiple of 8. Was it totally wrong ?
No, but I don't see how using the whole disk can end up to be not 4k aligned when doing your way would. Only way this would end up unaligned would be if the offset jumper on the WDxxEARS drives was set, and then you'd be misaligned regardless of method.
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