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CompTIA Security+ 3.4
TechKnowSurge Catalog Interactives Striping, Mirroring or Parity?
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Striping, Mirroring or Parity?

Striping, mirroring or parity? Sort each card by the RAID technique it is about.

⚑ Complete this interactive to capture a CTF flag worth 5 points.

About this interactive

RAID, a redundant array of inexpensive (or independent) disks, has two goals: speed and redundancy. Striping is for speed. The first block goes to the first drive, the second to the second, the third back to the first, and so on, so two blocks can be written at the same time. Mirroring is for redundancy. Whatever is written to one disk is also written to another, so if one goes bad, a copy remains. Parity is also for redundancy, done a different way. Instead of a copy, the array stores bits calculated from the data, and they can recreate a block that is lost. The levels combine them: RAID 0 stripes, RAID 1 mirrors, RAID 5 stripes with parity, RAID 6 stripes with two sets of parity. In RAID 5 and 6 the parity is spread across all the disks, not kept on one disk of its own.

What you'll learn

Aligned to

CompTIA Security+
3.4 Explain the importance of resilience and recovery in security architecture.

Key terms

Redundant Array of Independent Disks
RAID
A data storage technology that combines multiple physical drives into a logical unit to improve performance, provide redundancy, or both, depending on the RAID level chosen. Common levels include RAID 0 (striping for speed), RAID 1 (mirroring for redundancy), and RAID 5 (striping with parity).
Striping
A RAID technique that splits data across multiple drives sequentially to improve read and write performance.
Mirroring
A RAID technique that writes identical copies of data to two or more drives simultaneously so that if one drive fails the other contains a complete working copy; provides redundancy without improving write speed.
Parity
Calculated redundancy data stored across drives in certain RAID levels that allows the array to reconstruct lost data mathematically if a single drive fails.

Topics

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