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PASSEDqueue / disk_io_contention
MSMQ High Disk IO Wait — Performance Degraded on Windows Server 2022
MSMQ performance is severely degraded due to disk I/O contention from another process on the same host.
Pattern
STORAGE_IO_LATENCY
Severity
HIGH
Confidence
64%
Remediation
Auto-Heal
Test Results
| Metric | Expected | Actual | Result |
|---|---|---|---|
| Pattern Recognition | STORAGE_IO_LATENCY | STORAGE_IO_LATENCY | |
| Severity Assessment | HIGH | HIGH | |
| Incident Correlation | N/A | None | |
| Cascade Escalation | N/A | No | |
| Remediation | — | Auto-Heal — Corax resolves autonomously |
Scenario Conditions
Windows Server 2022. MSMQ disk i/o wait at 93%. Another process running heavy sequential writes. Read latency 2024ms (normal: 4ms).
Injected Error Messages (1)
MSMQ disk i/o contention on Windows Server 2022 — storage latency critical, read latency 2024ms (normal 4ms), disk i/o wait 93%, mqsvc.exe performance severely impacted
Neural Engine Root Cause Analysis
Storage I/O latency detected — disk operations are taking significantly longer than normal, causing application slowdowns, database query timeouts, and degraded user experience. High iowait indicates the CPU is spending excessive time waiting for disk operations to complete, often due to disk contention, failing drives, or storage subsystem overload.
Remediation Plan
1. Check I/O statistics with 'iostat -x 1 5' to identify which disk is bottlenecked.
2. Review iowait percentage in 'top' or 'vmstat' — sustained values above 20% indicate a problem.
3. Look for processes generating excessive I/O with 'iotop' or 'pidstat -d'.
4. Check RAID array health and disk SMART data for signs of drive failure.
5. Consider migrating to faster storage (SSD/NVMe) or offloading heavy I/O workloads.
Tested: 2026-04-02Monitors: 1 | Incidents: 1Test ID: cmnhnwkfp05iolijg0jodxhw9