Well, kind of. But all disks are under the same conditions. A power failure could make all of them to fail. Physical impacts affects all the same way. All can be stolen together, etc. It’s better than one disk, for sure. But it’s not a real backup.

Now, if you want to have fun setting a RAID, go ahead and post the results here. But be aware that RAIDs are not to avoid data loss.

RAIDs are for avoiding service disruption when a disk fails, not to avoid data loss.

To avoid data loss you need backups. Ideally under 3, 2, 1 rule: 3 copies, in at least 2 places, 1 of them being off-site.