On Tue, Oct 15, 2013 at 10:42:18PM +0100, Mick wrote: > mdadm --create --auto=mdp --verbose /dev/md_d0 --level=mirror > --raid-devices=2 > /dev/sda /dev/sdb > > which is thereafter partitioned with fdisk. This is the one I have used in > the past. > > Which one is preferable, or what are the pros & cons of each?
For a basic RAID1, the best is to keep it as simple as possible. So mirroring while disk looks better. It will also keep MBR/GPT synced. I tend to make manual partitions that I mirror but this is because I usually require to do more complex setups (e.g. mixing mirror types), or because I need to have the setup more flexible. -- Nicolas Sebrecht
