
the “Predictive Count/Resolve Time” Diagram
This diagram illustrates the workflow of IT Operations or System Maintenance, specifically comparing Predictive Maintenance (Proactive) versus Recovery/Reactive (Reactive) processes.
It is divided into two main flows: the Preventive Flow (Left) and the Reactive Flow (Right).
1. Left Flow: Predictive Maintenance
This represents the ideal process where anomalies are detected and addressed before a full system failure occurs.
- Process:
- Work Changes / Monitoring: Routine operations and continuous system monitoring.
- Anomaly: The system exhibits abnormal patterns, but it hasn’t failed yet.
- Detection (Awareness): Monitoring tools or operators detect this anomaly.
- Predictive Maintenance: Maintenance is performed proactively to prevent the fault.
- Key Performance Indicators (KPIs):
- Count: The number of times predictive maintenance was performed.
- PTM Success Rate: A metric to measure success (e.g., considered successful if no disability/failure occurs within 14 days after the predictive maintenance).
2. Right Flow: Reactive Recovery
This is the response process when an anomaly is missed, leading to an actual system failure.
- Process:
- Abnormal โ Alert: The condition worsens, triggering an alert. The time taken to reach this point is MTTD (Mean Time To Detect).
- Fault Down: The system actually fails or goes down.
- Propagation Time (to Experts): The time it takes to escalate the issue to the right experts. This relates to MTTE (Mean Time To Engage Expert).
- Recovery Time: The time taken by experts to fix the issue.
- Key Performance Indicators (KPIs):
- MTTR (Mean Time To Resolve/Repair): The total time from the failure (Fault Down) until the system is fully recovered. Reducing this time is a critical operational goal.
3. Summary & Key Takeaway
The diagram visually emphasizes the importance of “preventing issues before they happen (Left)” rather than “fixing them after they break (Right).”
- Flow Logic: If an ‘Anomaly’ is successfully ‘Detected’, it leads to ‘Predictive Maintenance’. If missed, it escalates to ‘Abnormal’ and results in a ‘Fault Down’.
- Goal: The objective is to minimize MTTR (downtime) on the right side and increase the PTM Count (proactive prevention) on the left side to ensure high system availability.
#DevOps #SRE #PredictiveMaintenance #MTTR #IncidentManagement #ITOperations #SystemMonitoring #DisasterRecovery #MTTD #TechMaintenance
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