On Wed, Oct 12, 2011 at 12:20 PM, David Miller <david3d at gmail.com> wrote: > On Wed, Oct 12, 2011 at 12:14 PM, Les Mikesell <lesmikesell at gmail.com>wrote: > >> On Wed, Oct 12, 2011 at 11:09 AM, John R Pierce <pierce at hogranch.com> >> wrote: >> >> >> What's the right way to set up>2TB partitions for raid1 autoassembly? >> >> I don't need to boot from this but I'd like it to come up and mount >> >> automatically at boot. >> > >> > disks 2TB and up have to be formatted as GPT rather than MBR, so old MBR >> > tools like fdisk are useless. use parted >> > >> > I would build a LVM vg with the multi-terabyte volumes, using lvm >> > mirroring, and then create an XFS lv on the vg .... xfs seems 100% >> > stable and high performance on centos6 >> >> What I'm looking for is the way to make md raid autodetect and >> assemble on boot. With fdisk, you would set the partition type to FD >> for that, but I don't see an equivalent in parted. >> > > With GPT that's set using flags. This is done in parted with the command > "set <partition number> raid on" > I just thought of one other thing. You'll want to read up on bios boot if these large drives are being used for the grub boot loader. -- David