What does "LMA" stand for?
Solution 1:
LMA Services means Logging, Monitoring and Aggregation services and currently includes: Nagios, Prometheus, Alertmanager, Grafana, Graylog and Elasticsearch.
Source: https://ubuntu.com/legal/ubuntu-advantage-service-description
Solution 2:
Maybe we'll let you decide. This link states that it is Logging, Monitoring and Alerting.
https://assets.ubuntu.com/v1/6063f97a-UbuntuAdvantage-datasheet_July-2019.pdf