#Supported drivers for ubuntu software

# mdadm /dev/md0 -create -auto yes -l 1 -n 2 /dev/hdc /dev/hddДЄll commands, e.g., mke2fs, have sensible defaults and 'do the right thing'. Setup: Ubuntu 6.06 LTS (Dapper server) with one (1) 40GB root partition (/dev/hda), currently holding all data including home and two (2) unused 250GB hard drives (/dev/hdc, /dev/hdd). Goal: Create a RAID 1 array for user data, that is, for home directories. If you want to make a RAID array of data devices and not of boot devices, adapt the following recipe to your needs. The same principle applies if you have one true 'active' and multiple mirrors etc. Note for RAID1 first timers: Each RAID array is usually made up of at least two 'active' devices (one of which is actually 'active' and one of which is the mirror) - spare devices are there for when one of the active devices fail so they can jump in and continue mirroring. More detailed instructions for Debian and Ubuntu On each of these raid devices configure a single operating system partition (/boot, /, swap, etc.) of the size of the entire device.

Use configure raid to make raid devices for each partition. The /boot or / partitions on each disk should be marked bootable. For each disk in the array create a 'Use as: Raid physical' partition of appropriate size for each operating system partition (/boot, /, swap, /home, etc.). It uses one raid partition per operating system partition, unlike LVM which uses logical volumes in order to use a single raid partition.

#Supported drivers for ubuntu software

This is the simplest method of setting up software raid. In Breezy Badger (5.10), installation of md and LVM can be completed entirely with the installation CD without using expert mode.

The supported, and probably optimal, way to use raid with Ubuntu is to employ Linux's Multiple Device (md) raid system, optionally with the Logical Volume Manager (LVM). The amount of protection it affords depends upon the type of raid used. It uses multiple hard disks storing the same data to protect against some degree of physical disk failure. RAID is an acronym for Redundant Array of Independent Disks.