Using Knoppix To Create and Reconfigure Software RAID

Use Knoppix to create and reconfigure software RAID

If you are into managing web server and in the business of providing webhosting services, you must be familiar with the knoppix tip that I’d like to share with our readers today. Let’s start a bit of background about rescue disk and creating your first RAID.

Now, what is a rescue disk? A rescue disk is very handy to configure and change a software RAID, particularly if the RAID is for a complete root partition. Knoppix comes with the major tools you need to create and modify Linux software RAID, and makes it very simple to create new software RAID drives. Linux software RAID supports many different styles of RAID: RAID 0, RAID 1, and RAID 5 and RAID 10. A basic familiarity with RAID principles, and a working knowledge of the differences between RAID 0, 1, and 5 and 10 is needed.

Now, let’s learn to configure /etc/raidtab

To create a RAID, first edit the /etc/raidtab configuration file and add a new RAID device. This differs depending on which type of RAID you want to create, so I go over the configuration for each of the three types.

In an earlier blogpost, I have provided default RAID configurations for each type, because usually /etc/raidtab is empty or missing by default. Use these configurations as a starting point, and modify them to match your devices.