I need to install a software raid-0 array on a Ubuntu 12.04 server with
mdadm through commandline (SSH).
The drive setup is as follows:
Basically, you need the mdadm tools and I'll just assume you have them installed. My best guess would be:
mdadm --create /dev/md0 -n -l0 /dev/sdb /dev/sdc
This should create a block device /dev/md0, which you can use as you please. Typically, I put LVM on top, but you do whatever you want. I couldn't actually test this right now.
Normally, I create partitions with the RAID partition type (Partition ID=FD, "Linux raid autodetect"), which I then raid... But it might work on the bare disks.
Since I like to verify, I googled around and found http://www.tecmint.com/create-raid0-in-linux/, which is pretty much all you need to know to get it up and running.
