Manage a Linux RAID 10 Storage Server
Linux RAID and Hardware
I've seen a lot of confusion about Linux RAID, so let's clear that up. Linux software RAID has nothing to do with hardware RAID controllers. You don't need an add-on controller, and you don't need the onboard controllers that come on most motherboards. In fact, the lower-end PCI controllers and virtually all the onboard controllers are not true hardware controllers at all, but software-assisted, or fake RAID. There is no advantage to using these, and many disadvantages. If you have these, make sure they are disabled.
Ordinary PC motherboards support up to six SATA drives, and PCI SATA controllers provide an easy way to add more. Don't forget to scale up your power and cooling as you add drives.
If you're using PATA disks, only use one per IDE controller. If you have both a master/slave on a single IDE controller, performance will suffer and any failure risks bringing down both the controller and the second disk.
ALERT! /dev/md0 does not exist. Dropping to a shell!(initramfs) _
update-initramfs -u -k all
sudo mount /dev/md0 /mntsudo mount -o bind /dev /mnt/devsudo mount -t proc /proc /mnt/procsudo chroot /mnt /bin/bashallsudo update-initramfs -u - k
sudo apt-get install mdadm