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Data A&E - RAID 5 Explained


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RAID 5

Provides redundancy by writing data and parity information across three or more drives, thus increasing performance. RAID Level 5 provides the best combination of disk array technology. This is the most common RAID level supplied.

Advantages

  • - Most flexible of all disk arrays
  • - Allows multiple simultaneous writes
  • - 3 drives minimum
  • - Very efficient

Disadvantages

  • - Inefficient with large file transfer
  • - Disk failure has an impact on performance

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