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@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