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PASSEDinfrastructure / multi_tenant_backup_failure
Multi-Tenant Backup Failure — Cloud Repository Corruption
The shared cloud backup repository used for 15 MSP clients becomes corrupted after a storage controller firmware bug. Backup jobs for all tenants fail with integrity check errors. The most recent valid restore point for some clients is 72 hours old, violating SLA RPO requirements.
Pattern
BACKUP_FAILURE
Severity
CRITICAL
Confidence
95%
Remediation
Remote Hands
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | BACKUP_FAILURE | BACKUP_FAILURE | |
| Severity Assessment | CRITICAL | CRITICAL | |
| Incident Correlation | Yes | 42 linked | |
| Cascade Escalation | Yes | Yes | |
| Remediation | — | Remote Hands — Corax contacts on-site support via call, email, or API |
Scenario Conditions
Veeam Cloud Connect repository shared by 15 tenants. Storage controller firmware bug corrupted metadata. All backup jobs failing with CRC errors. Last valid backup: 72 hours ago for some tenants. RPO SLA: 24 hours for all clients.
Injected Error Messages (3)
Cloud Connect backup failures across all tenants — 15/15 tenant backup jobs failing since 72 hours ago, repository integrity check returning CRC mismatch errors, storage controller firmware bug confirmed, Veeam health check reporting repository corruption
Cloud repository metadata corrupted — repo-01 storage extent showing I/O errors, backup chain integrity broken for all tenants, incremental backup merge failing, repository in read-only mode, capacity: 48TB, affected data: 32TB across 15 client organizations
All 47 backup jobs in failed state — last successful backup for 8 tenants: 72 hours ago, RPO SLA violation for 15 clients, restore point chain broken, synthetic full backup failing due to repository corruption, manual re-seed required
Neural Engine Root Cause Analysis
The Veeam Cloud Connect service is experiencing repository corruption due to a confirmed storage controller firmware bug, resulting in CRC mismatch errors during integrity checks. This hardware-level issue has cascaded to cause all 15 tenant backup jobs to fail for 72 hours, with 16 correlated incidents indicating widespread storage subsystem impact. The storage controller firmware defect is causing data corruption at the block level, which Veeam's integrity mechanisms are correctly detecting and preventing from spreading.
Remediation Plan
1. Immediately isolate the corrupted backup repository to prevent further data loss 2. Coordinate emergency storage controller firmware update with vendor support 3. Run comprehensive storage subsystem diagnostics and repair 4. Restore backup repository from last known good state or rebuild from scratch 5. Verify data integrity across all tenant backup chains 6. Gradually resume backup operations with extensive monitoring 7. Implement storage controller firmware monitoring to prevent recurrence
Tested: 2026-03-30Monitors: 3 | Incidents: 3Test ID: cmncjra4703z8obqep8tetcgp