On Mon, Feb 04, 2008 at 09:17:35AM +0000, Robin Hill wrote: > On Mon Feb 04, 2008 at 07:34:54AM +0100, Keld Jørn Simonsen wrote: > > > I understand that lilo and grub only can boot partitions that look like > > a normal single-drive partition. And then I understand that a plain > > raid10 has a layout which is equivalent to raid1. Can such a raid10 > > partition be used with grub or lilo for booting? > > And would there be any advantages in this, for example better disk > > utilization in the raid10 driver compared with raid? > > > A plain RAID-10 does _not_ have a layout equivalent to RAID-1 and > _cannot_ be used for booting (well, possibly a 2-disk RAID-10 could - > I'm not sure how that'd be layed out). RAID-10 uses striping as well as > mirroring, and the striping breaks both grub and lilo (and, AFAIK, every > other boot manager currently out there). Yes, it is understood that raid10,f2 uses striping, but a raid10,near=2, far=1 does not use striping, anfd this is what you get if you just make a mdadm --create /dev/md0 -l 10 -n 2 /dev/sda1 /dev/sdb1 best regards keld - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
