Adrian Sevcenco wrote: > On 01/27/2014 08:42 PM, Les Mikesell wrote: >> On Mon, Jan 27, 2014 at 12:33 PM, Adrian Sevcenco >> <Adrian.Sevcenco at cern.ch> wrote: >>> >>> for quite some time (since 5.x era) i use >>> http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 >>> (with 6.x i don't even need the patch to mkinitrd) >>> >>> the mbr or whatever it is is written in /dev/md_d0 .. and thats it >>> in bios you put both hdd to boot and if the first have a problem the >>> second will boot, mail you that you have a degraded raid and start >>> resync after you replaced the drive. (and you can do it live) >> >> Does that all work the same for drives > 2 TB? > i have no idea .. it should .. my use cases at work are the boot drives (all under 500 GB) > and home (but i have no hdd > 2 TB) > > basically it is a raid over a block device so it does/should not matter > what you write into it... > As I noted in a previous post, it's got to be GPT, not MBR - the latter doesn't understand > 2TB, and won't. On a related note, what we've started doing at work is partitioning our root drives four ways, as they're now mostly 2TB that we're putting in, instead of three: /boot, swap, and /, with that as 1G, 2G, and 500G, and the rest of the drive separate. We like protecting /, while leaving more than enough space for logs that suddenly run away. At home, I'll probably do less for /, perhaps 100G. mark