Finding external sources of instability by using hourly health measures Checking for Chaos – Check for External Sources of Chaos. ©2020 iiSM.ORG, All Rights Reserved. Check Hourly Trends for Unanticipated Sources of Chaos. 3b. Use spikes in hourly data to find source of problem:
Disk – Schedule backups of servers during peak hours
Disk – Enterprise data warehouse ETL jobs
Disk – Lock escalations during peek utilization times
Disk – Running antivirus on database servers
I/O – Overloaded Network or Disk at peak times
Memory – Queues backing up during peak activity
CPU – Insufficient scheduled CPUs in VMs. Check for external sources of contention by analyzing hourly roll-ups over time
Hourly averages show how external sources of chaos are impacting your software. Click slide to see in context of slide deck
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