Before reading about the EBS default policy, it is important to understand the following Metricly computed metrics.
Average Latency: Average Latency is straightforward as it represents the average amount of time that it takes for a disk operation to complete. Queue Length Differential: Queue Length Differential measures the difference between the actual disk queue length and the “ideal” disk queue length.The ideal queue length is based on Amazon’s rule of thumb that for every 200 IOPS you should have a queue length of 1.
Collected Fully Qualified Name (FQN) Description Units BASE CORR UTIL Related Global Policies netuitive.aws.ebs.averagelatency This metric expresses the average latency per operation for this EBSinstance. This metric is useful for monitoring EBS performance andquality of service.Computation:(Total Read Time + Total Write Time) / (Read Ops +Write Ops) seconds yes yes no Elevated Queue Length Differential with Elevated Latency netuitive.aws.ebs.iops This metric expresses the total number of either read or writeoperations per second for this EBS instance.
About Idle Resources Keep track of all of your unused resources with our EBS & ELB Idle Resource reports. Each report supports daily email notifications to keep you informed of changes.
To Use Unattached EBS or ELB Reports Navigate to Reports > Idle Resources. Select Unattached EBS (or ELB). Available View Sorting Unattached Resource reports can be sorted by each column:
Name Location Size VolumeId IOPS Type Monthly Cost Simply click on the column header to sort using that preferred column.
About Purchase Planning Master your resource portfolio with Metricly’s Purchase Planning tools. These tools help you know when to purchase reservations and what kind to buy.