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RAID 1

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RAID 1 – Mirroring without parity or striping.

– Minimum disks: 2
– Data redundancy (mirror)
– One disk may fail
– Effective protection against physical disk failure

RAID 0

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RAID 0 is a simply data stripe over several disks.

– No data protection
– Better performance
– Requirements: At least 2 drives
– Put several disks to one bigger one
– If one disk fails, you lose all your data
– Raid 0 is excellent for non-mission critical situations

JBOD

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JBOD (Just a Bunch Of Drives) and its not a RAID.

JBOD allows you to create a large virtual disk by concatenating more smaller drives together.

This method is outdated and unsafe. If one of your disks gets broken, you will lose all your important data!

– Requirements: At least 2 drives