PowerProtect DD Data Invulnerability Architecture: Enhancing Data Integrity and Recoverability

• 1

  Overview
• 2

  Audience
• 3

  Revisions
• 4

  We value your feedback

• 1

  Introduction to PowerProtect DD architecture
• 2

  End-to-end verification
• 3

  Fault avoidance and containment
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  New data never overwrites good data
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  Fewer complex data structures
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  NVRAM for fast, safe restart
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  Persistent RAM protection
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  No partial stripe writes
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  Continuous fault detection and healing
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  RAID 6: Double disk failure protection, read error protection
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  “On-the-fly” error detection and correction
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  Scrubbing to ensure ongoing data integrity
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  File system recoverability
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  Self-describing data format to ensure metadata recoverability
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  File system check, if needed, is fast

• 1

  Conclusion