This document is a WORK IN PROGRESS.
This is just a quick personal cheat sheet: treat its contents with caution!

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Software RAID

Redundant Array of Inexpensive Disks (RAID) is a technology to combine multiple disks in order to improve their reliability and/or performance. There is hardware RAID, implemented by the controller on your motherboard or specific extension cards, and there is software RAID, implemented by the kernel.

Reference(s)

• https://wiki.archlinux.org/index.php/RAID
• https://wiki.gentoo.org/wiki/Complete_Handbook/Software_RAID
• https://en.wikipedia.org/wiki/Standard_RAID_levels
• https://en.wikipedia.org/wiki/RAID
• http://www.raid-calculator.com/default.aspx
• https://www.zdnet.com/article/why-raid-6-stops-working-in-2019/

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Table of contents

• Software RAID
• Hardware RAID

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Software RAID

There is at least 3 ways of doing software RAID:

1. mdadm
2. LVM
3. file systems RAID (e.g. Btrfs, ZFS etc)

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Hardware RAID

• MegaCLI
• StorCLI
• PercCLI

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