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Chapter 7. Configuring RAID
This chapter provides information about storage drive requirements for Redundant Array of Independent
Disks (RAID) levels, and instructions on how to configure RAID for your computer.
An Introduction to RAID
RAID is a technology that provides increased storage functions and reliability through redundancy.
When a group of independent physical storage drives is set up to use RAID technology, they are in a RAID
array. This array distributes data across multiple storage drives, but the array appears to the host computer
as one single storage unit. Creating and using RAID arrays provides high performance, such as the expedited
I/O performance, because several drives can be accessed simultaneously.
RAID drive groups configured according to certain RAID levels also improve data storage reliability and fault
tolerance compared with single-drive storage systems. Data loss resulting from a drive failure can be
prevented by reconstructing missing data from the remaining drives.
Note: For RAID 0, the missing data resulting from a drive failure cannot be reconstructed.
Storage drive requirements for RAID levels
Your computer supports the following internal storage drives:
2.5-inch form factor, 7-mm (0.28-inch) height SATA hard disk drive (available on some models)
M.2 Non-Volatile Memory Express (NVMe) solid-state drive (available on some models)
Note: Ensure that your computer has two identical storage drives installed (two M.2 NVMe solid-state drives
with the same capacity) for supported RAID levels. If only one drive is installed, or two different types of
drives are installed, the following information does not apply.
Your computer supports the following RAID levels:
RAID 0: striped disk array
Consists of two identical storage drives
Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB
Better performance without fault tolerance
Higher risk of data loss resulting from a member drive failure compared with non-RAID configuration
RAID 1: mirrored disk array
Consists of two identical storage drives
Improved reading performance and 100% redundancy
Configuring RAID with the Intel RST configuration utility
This topic provides the following instructions to help you configure RAID with the Intel RST configuration
utility:
How to enter the Intel RST configuration utility
How to create RAID volumes
How to delete RAID volumes
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