RAID 0 or RAID1?

I need to know which RAID system is better, RAID 0 or RAID 1?

I had a hard drive failure last week and don’t want to loose my data again.


RAID0 has no redundancy. RAID1 is a mirror.

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So RAID 1 is better in case of data lost?

Yes, if you’re talking about data loss due to drive failure.
The best protection against data loss in general is an independent backup. RAID of any form is NOT a backup.