💻 Software

How does RAID5 work?

Fresh7 days ago

Mar 15, 20261969 views

Confidence Score0%

Problem

In a raid 5 setup, you get 4 TB of usable space out of 3 x 2 TB disks. How is that possible? Simple minded as I am, I would think that you need 4TB to store your things, and use the remaining 2TB for recovery. But how can I recover 4TB out of only 2TB? If 1kb is gone, I only have 0.5kb to recover f…

Unverified for your environment

Select your OS to check compatibility.

Your OS

OS version

Product version

1 Fix

Canonical Fix

Unverified Fix

New Fix – Awaiting Verification

Fix for: How does RAID5 work?

Low Risk

For the example, we have 3 disks. One disk holds the parity information, the other two the data (thus you lose 1 disk worth of space to parity). Now, for every bit the parity is calculated, such that all of the disks contain always an even number of…

Awaiting Verification

Be the first to verify this fix

How does RAID5 work?

Problem

1 Fix

Fix for: How does RAID5 work?

Environment