Introduction:
What is RAID?
RAID is a storage technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy and performance improvement. Data is distributed across the drives in one of several ways, referred to as RAID levels, depending on the specific level of redundancy and performance required.
http://en.wikipedia.org/wiki/RAID
What is RAID 1 Configuration?
RAID 1 comprises mirroring (without parity or striping). Data are written identically to two (or more) drives, thereby producing a "mirrored set". The read request is serviced by any of the drives containing the requested data. This can improve performance if data is read from the disk with the least seek latency and rotational latency. Conversely, write performance can be degraded because all drives must be updated; thus the write performance is determined by the slowest drive. The array continues to operate as long as at least one drive is functioning.
http://en.wikipedia.org/wiki/RAID#RAID_1
To setup IBM Machine to RAID 1 you need to follow these steps through BIOS:
Let's assume that you don't have any existing RAID configuration on a particular IBM Machine, because if you have any configuration existed, you are unable to configure the RAID unless you will delete the configuration and this deletion will eventually reformat the drive, so, be sure to backup all of your data on an particular drive before you proceed.
- The first thing you need to do is to prepare your IBM Machine and Reboot it and Enter the BIOS.
- When you reboot your IBM Machine, you will see the system initialization, wait until it's done.
- After that, initial screen will appear, wait until the MENU to appear and press F1 to enter SETUP as seen on the screenshots below.
