|Subject:||Re: Question about LVM or RAID on /boot|
|Date:||Mon, 14 Oct 2013 23:40:39 -0600|
On Oct 14, 2013, at 10:22 PM, Kun Huang <address@hidden> wrote:
Works fine with GRUB2 for the past ~2 years at least. Probably longer.
The limitation is BIOS seeing all of the disks, not a GRUB limitation. I think there's work that needs to be done to update the GRUB LVM code when it comes to LVM integrated raid levels 10, 5, and 6; and also thin provisioning. Except for raid0, 1, 10, I think the rest is a bit esoteric for /boot, and is probably more trouble than it's worth if there are device failures.
I don't actually know off hand if GRUB2's md raid code can rebuild data chunks from parity on the fly, e.g. if there's a 1 disk failure of a raid5 array. If not, yeah, all the more reason I'd keep /boot simple.
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