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Fix IOPS Issues

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  • Alert Conditions
  • Common Triggers
  • Fix the Immediate Problem
  • Implement a Long-Term Solution
  • Monitor Your Progress

System and disk alert conditions can indicate IOPS issues.

System: CPU (User) % is measures the CPU usage of the processes on the node, normalized by the number of CPUs. This value is scaled to a range of 0-100%.

A few common events may trigger these alerts:

  • Unoptimized queries

  • A one-time event, such as an index build.

Consider the following resolutions:

  • Review Indexing Strategies for possible further indexing improvements.

    Note

    A temporary spike in disk utilization may result when creating new indexes.

  • Analyze Query Performance to review how your queries are using your indexes.

  • Use a faster disk drive with more hardware resources.

  • Move operations from disks with large workloads to different disks.

To observe high disk utilization, open the Hardware Metrics section of the Metrics tab and find the following metrics:

Graph
Indicator
Disk IOPS
IOPS value greater than the provisioned IOPS value
Normalized System CPU

High IOWait curve

IOWait measures the percentage of time the CPU runs idle waiting for an I/O operation to complete.

To learn more, see View Deployment Metrics.

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Fix CPU Usage Issues

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View Deployment Metrics