Volume Detail - Monitoring

This tab allows you to view and create alarms based on criteria you define, and provides a graphical view of various data points being monitored for your volume.

Alarms

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, click the Create Alarm button.
    The Create Alarm page opens. Refer to the Help in the Create Alarm page for further instructions.

Context menu actions

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

The following context menu actions are available:

CloudWatch metrics

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

  1. The graphs displayed by default are:
    • Read bandwidth. Represents the total number of bytes transferred during a specified period of time to complete read operations over a 1024k I/O.
    • Write bandwidth.Represents the total number of bytes transferred during a specified period of time to complete write operations over a 1024k I/O.
    • Read throughput (ops/sec). The total number of read I/O operations that has completed in a specified period of time.
    • Write throughput (ops/sec). The total number of write I/O operations that has completed in a specified period of time.
    • Average queue length. The average read and write operation requests waiting to be completed in a specified period of time.
    • Percent time spent idle. The percentage of time over a specified period where no read or write operations are present.
    • Average read size (KiB/op). The average size of each read I/O operation in a specified period of time.
    • Average write size (KiB/op). The average size of each write I/O operation in a specified period of time.
    • Average read latency (ms/op). The average number of seconds spent by read operations that completed in a specified period of time.
    • Average write latency (ms/op). The average number of seconds spent by write operations that completed in a specified period of time
  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 Show data for to focus in on a set of data within a specific period of time.
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