In the 1st paragraph is a link to the previous article of the same experiment a few months ago, that has some more details mentioned:

researchers have managed to release 2.5 MJ of energy after using just 2.1 MJ to heat the fuel with lasers.

the positive energy gain reported ignores the 500MJ of energy that was put into the lasers themselves.

https://www.theguardian.com/environment/2022/dec/12/breakthrough-in-nuclear-fusion-could-mean-near-limitless-energy

I’m quite disappointed by most comments so far talking about RAID and data loss. That is not what RAID is for at all.

RAID is for uptime/availability. When a drive fails, the system will keep running and working. For companies, that would lose thousands of currency per hour with a downtime, this is super important that the system keeps running. At home, it’s convenience that you can order a new drive and replace without hours of setting up and copying before you can watch the next episode again.

Backups are against data loss. If a single drive fails, a RAID fails or you get some encryption malware or an employee destroys stuff on purpose, then everything is destroyed. It doesn’t matter if it was a single, any RAID, HDD or SSD. You order a new drive, make a new volume and restore the data from your backup.