You can list available metrics via Euca2ools.To list available metrics:
Enter the following command.
euwatch-list-metrics
Eucalyptus returns a listing of all metrics, as shown in the following partial example output:
Metric Name Namespace Dimensions
CPUUtilization AWS/EC2 {InstanceId=i-5431413d}
CPUUtilization AWS/EC2 {InstanceType=m1.medium}
DiskReadBytes AWS/EC2 {InstanceId=i-1d3d4d74}
DiskReadBytes AWS/EC2 {InstanceType=m1.medium}
DiskReadOps AWS/EC2 {InstanceId=i-d3c8baba}
DiskReadOps AWS/EC2 {InstanceType=m1.medium}
DiskWriteBytes AWS/EC2 {InstanceId=i-6732420e}
DiskWriteBytes AWS/EC2 {InstanceType=m1.medium}
DiskWriteOps AWS/EC2 {InstanceId=i-e03d4d89}
DiskWriteOps AWS/EC2 {InstanceType=m1.medium}
NetworkIn AWS/EC2 {InstanceId=i-e0304089}
NetworkIn AWS/EC2 {InstanceType=m1.medium}
NetworkOut AWS/EC2 {InstanceId=i-69334300}
NetworkOut AWS/EC2 {InstanceType=m1.medium}
StatusCheckFailed AWS/EC2 {InstanceId=i-6f8418e6}
StatusCheckFailed AWS/EC2 {InstanceType=m1.medium}
StatusCheckFailed_Instance AWS/EC2 {InstanceId=i-6f8418e6}
StatusCheckFailed_Instance AWS/EC2 {InstanceType=m1.medium}
StatusCheckFailed_System AWS/EC2 {InstanceId=i-6f8418e6}
StatusCheckFailed_System AWS/EC2 {InstanceType=m1.medium}