RAID (redundant array of independent disks, originally redundant array of inexpensive disks) is a storage technology that combines multiple disk drive components into a logical unit. Data is distributed across the drives in one of several ways called "RAID levels", depending on the level of redundancy and performance required.
The term "RAID" was first defined by David Patterson, Garth A. Gibson, and Randy Katz at the University of California, Berkeley in 1987. Marketers representing industry RAID manufacturers later attempted to reinvent the term to describe a redundant array of independent disks as a means of disassociating a low-cost expectation from RAID technology.
RAID is now used as an umbrella term for computer data storage schemes that can divide and replicate data among multiple physical drives: RAID is an example of storage virtualization and the array can be accessed by the operating system as one single drive. The different schemes or architectures are named by the word RAID followed by a number (e.g. RAID 0, RAID 1). Each scheme provides a different balance between the key goals: reliability and availability, performance and capacity. RAID levels greater than RAID 0 provide protection against unrecoverable (sector) read errors, as well as whole disk failure.
Using RAID technology enables hard disk failure caused by server downtime. The experiment requires four SCIS hard drive, boot partition as the boot partition is not supported, can only be installed on the RAID-1. / Partition and SWAP partition using RAID-10.
/boot RAID-1 50M
/ RAID-10 7.45G
Swap RAID-10 500MB
Create a new Ubuntu Server in VMware WorkStation
About RAID troubleshooting, please refer to RAID Troubleshooting.