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Which does not provide redundancy?
Mirroring
RAID 5
RAID 3
RAID Striping
Striping increases performance, not data redundancy. EDIT:::: Remove Mirroring from choices... imagine this scenario : 2x HDD in Mirroring mode, accidentally you deleted a critical files on disk1, it will be reflected on disk2 too. :) in this mirroring scenario Disk2 does not provide any sort of backup means. edit2: RAID IS NOT A BACKUP SOLUTION. it provides redundancy NOT backups.
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