365 Architect

Aegis 365 -- Operations & Observability

Monitoring & Alerting

Metric Tool Alert Threshold Action
L0--L7 latency App Insights > 2.5s (human) / > 5s (agentic) Page on-call
Prompt detection accuracy Custom dashboard L1 false positive > 10% Retrain SLM
Redis cache hit rate Insights < 60% for High classification Investigate cache policy
Session freeze events Azure Monitor > 10 in 1 hour Check for compromise
Audit log lag Custom monitor > 1s behind real time Check L6 I/O bottleneck
Break Glass initiated Syslog Any event Notify all MPC key holders
IdP sync failures Service Bus DLQ Retry > 3x Page identity admin
HSM comms error Syslog Any Fail-Closed; page security

Runbooks

Redis Member Failure

  • Automatic failover to replica
  • Manual integrity check of session state consistency
  • Verify no Mosaic tiles lost across nodes

SLM Inference Timeout

  • Switch L1/L2 to high-speed regex/NER fallback mode
  • Alert AI Governance Officer for model health review
  • Schedule SLM re-deployment or quantization check

Compliance Registry Update Failure

  • Queue update for next sync window
  • Do not block traffic -- registry is advisory unless stale beyond configured threshold
  • Alert SOC if stale > 24 hours for Critical classification

Session State Corruption

  • Immediately invalidate affected sessions
  • Freeze user account pending investigation
  • Generate forensic snapshot in L6

High-Value Access Event

  • Immediate notification to CISO, Legal, and all MPC key holders
  • Generate immutable Meta-Log entry
  • If unauthorized, trigger emergency session freeze and SOC escalation

Deployment & Zero-Downtime Updates

Component Strategy Duration
Core pipeline (L0--L7) Blue-Green: validate before cutover Zero downtime
Local SLMs (L1, L2) Canary: 5% traffic, monitor 30 min < 1 min user impact
Configuration (policies) Rolling update Immediate
Emergency security patches Forced rolling update Max 15 min

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