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Why is RAID not a substitute for backup?

  1. A Deletion, corruption and ransomware replicate instantly across every disk in the array
  2. B RAID arrays fail frequently
  3. C RAID is too slow
  4. D RAID cannot store large files
Answer

Deletion, corruption and ransomware replicate instantly across every disk in the array

RAID provides availability against disk failure only. Believing it provides backup is a common and expensive mistake.

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