Return to Level1Techs.com

RAID 1 mirror on Ubuntu

I have about 650GB of data files on a 1T Toshiba hard drive.

This drive used to be in a RAID 1 mirror with Intel Rapid Storage Technology.

Planning to convert this drive back into a non-RAID drive and mount it in Ubuntu 20.04 LTS.

Backup plan would be to use Duplicati to sync this drive to an external USB drive and cloud storage (probably Google Drive)

I have a CyberPower UPS that works on Ubuntu so I’m not really concerned with power outages and weird cache situations.

Still considering setting up another RAID 1 mirror.

All of my previous data loss came from failed physical drives.

What are some recommendations for implementing a RAID 1 mirror on Ubuntu?

RAID card/memory/battery seems like overkill for just 2 drives/650GB and sounds pricey.

But I keep reading that software/fake RAID is just a bad idea.

I was researching mdadm/webmin but then I saw this video:


and I realize I need to get a FreeNas box going eventually.

RAID is not a backup.

You don’t need raid, but it helps in case of a disk failure, assuming you need to use multiple disks.

You should follow the 3-2-1 strategy.

3 copies of your data

2 different storage types. (disk, optical, cloud, tape)

1 offsite.

Of course, all of this really depends on how important the data is to you.

What I do, is I back up my data from my workstation to my array, and to BackBlaze’s B2 with restic. (guide coming soon, hopefully, when I make time)

1 Like

good point. The internal drive/external USB/cloud option would satisfy the 3,2,1 rule. I’m still considering RAID because all of my data loss over the years has been due to physical drive failures.

Yes. I would agree.

Thats a fair consideration, I just wanted to make sure you were going to be taking backups (and testing them regularly!) as well.

1 Like