EC2 system metrics v/s AWS metrics

Elastic Stack Beats
1

Using Elastic 7.9 version with 7.9 beats (EFK self managed). Monitoring AWS-EC2 instances
Question:

  • Can I just use System Module using Metric beats or
  • AWS EC2 module is required

Can you please suggest/comment what module is best pros/cons

Metricbeat.yml for reference below

metricbeat.config.modules:
  # Glob pattern for configuration loading
  path: /etc/metricbeat/modules.d/*.yml
  # Set to true to enable config reloading
  reload.enabled: false
  # Period on which files under path should be checked for changes
  #reload.period: 10s
metricbeat.modules:
- module: aws
  period: 300s
  metricsets:
    - ec2
  access_key_id: '***************'
  secret_access_key: '*******************'
  enabled: true
#- module: system
#  metricsets:
#    - cpu             # CPU usage
    # - load            # CPU load averages
#    - memory          # Memory usage
#    - network         # Network IO
#    - process         # Per process metrics
#    - process_summary # Process summary
#    - uptime          # System Uptime
#    - socket_summary  # Socket summary
    # - core           # Per CPU core usage
    # - diskio         # Disk IO
    # - filesystem     # File system usage for each mountpoint
    #  - fsstat         # File system summary metrics
    # - raid           # Raid
    # - socket         # Sockets and connection info (linux only)
    # - service        # systemd service information
#  enabled: true
#  period: 10s
#  processes: ['.*']

  # Configure the metric types that are included by these metricsets.
  cpu.metrics:  ["percentages","normalized_percentages"]  # The other available                                                                                                              option is ticks.
  # core.metrics: ["percentages"]  # The other available option is ticks.
output.logstash:
 # The FluentD hosts
 hosts: ["dev-hr-fd.mycompany.in:5044"]
2

I ended up using SYSTEM metrics with COU, Memory metricsets. It also gives the awsinstance Ids.
Still unsure what additional details the AWS metrics give

3

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