RAID 0 is less secure than no RAID at all
It should be pointed out that RAID 0 actually decreases the safety of your data versus a single disk solution. This is because RAID 0 cannot tolerate the failure of a single drive and if you have your data spread across two drives, you're doubling your chance of data loss. Imagine you're rolling a dice to determine if a disk fails and if a 1 comes up, the data on that disk is toast. With a single disk, you roll one die for a 1 in 6 chance of failure. With RAID 0, you have to roll a die for each disk, giving you two chances to roll a 1 and lose all your data. With RAID 1, you roll both dice, but they both have to come up 1 (1 in 36 chance) in order for you to lose your data.
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