I want to use SAS Environment Manager as monitoring tool and activate APM ETL and ACM ETL jobs to gather monitoring data.
As per my knowledge the default length for history of this data is 9 days.
How could I extend this period and which is the the maximum value (I need at least 1 month of history, ideallly last month complete + current up to date).
I would strongly suggest you to contact SAS technical support. There is a place in the Environment Manager/ APM/ACM reporting to change this setting. But the nightly process are storing data and configuration in your Web Infrastructure Platform database, and there is a maintenance process that has to be modified too, accordingly.
Specially this last part is better if you get official support. The SAS Technical Support team will hapilly help you with this.
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.