Data Lifecycle

Managing data through its lifecycle in QNSP Storage.

Lifecycle stages

Create → Active → Archive → Delete → Purge

Lifecycle policies

Retention

{
  "retention": {
    "mode": "governance",
    "period": "7y"
  }
}

Modes:

• governance: Admin can override
• compliance: Cannot be shortened

Tiering

{
  "tiering": {
    "rules": [
      {"after": "30d", "tier": "warm"},
      {"after": "90d", "tier": "cold"}
    ]
  }
}

Expiration

{
  "expiration": {
    "after": "365d",
    "action": "delete"
  }
}

Deletion

Soft delete

• Object marked deleted
• Recoverable for retention period
• Metadata preserved

Hard delete

• Object data removed
• Metadata removed
• Encryption keys destroyed

Crypto-shred

• Delete encryption keys
• Data becomes unrecoverable
• Immediate effect

Legal hold

Prevent deletion regardless of policy:

PUT /storage/v1/objects/{id}/legal-hold
{
  "enabled": true,
  "reason": "litigation-2024-001"
}

Audit

All lifecycle events logged:

• State transitions
• Policy applications
• Manual overrides