Instance Details - Monitoring

This section displays a list of configured alarms and allows you to create a new alarm.

1. To view the details of currently configured CloudWatch alarms, expand it by clicking the plus symbol (+) next to the Cloudwatch alarms summary.
   The expanded view displays the state of each alarm, the alarm name, and their thresholds.
2. To create a new alarm you must first select a metric, unless you are within the scaling policy creation workflow:
   1. Click Create Alarm.
      An instructional message opens.
   2. Either close the message and view a metric from the Monitoring tab of any resource's Details page or click the Take Me to the Metrics Landing Page button to be taken directly to the Metrics page.
   3. Select a metric to view and click Create Alarm.
      The Create alarm page opens. Refer to the Help in the Create alarm page for further instructions.

A context menu, accessible by clicking the menu icon (row of three dots), contains actions associated with the monitoring of your instance.

• Turn monitoring on displays monitoring data associated with your instance.
• Turn monitoring off disables monitoring data completely.
  When you select this option, no charts display. Instead, a reminder that monitoring is currently turned off, but you can turn it back on by clicking the Enable Monitoring for this Instance button.

This part of the page displays the CloudWatch data when you enabled monitoring for your instance.

1. The graphs displayed by default are:
   • CPU utilization %. Represents the percentage of processing power currently in use by the instance.
   • Disk read bytes. The amount of data that is being read from the instance's hard disk.
   • Disk read operations. The number of read operations that has completed on all ephemeral disks available to the instance.
   • Disk write bytes. The amount of data that is being written to the instance's hard disk.
   • Disk write operations. The number of write operations that has completed on all ephemeral disks available to the instance.
   • Network in. The amount of incoming network traffic to an application on this instance.
   • Network out. The amount of outgoing network traffic to an application on this instance.
   Each of the graphs default to the average statistic for the best output results.
2. The various ways to view the data in the graphs are:
   • Click on a graph to expand it.
   • Hover inside the graph to display a read-out of data-points desired.
   • Use the drop-down list boxes for Statistic, Show data for, and Measurement period to focus in on specific set of data points. For example, to view the combined number of healthy hosts within the last hour in 5-minute readings, select Sum from Statistic, Last hour from Show data for, and 5 minutes from Measurement period.