On Windows machines, usually "C:\Program Files\SASHome\InstallMisc\InstallLogs". The main log is IT_yyyy-mm-dd-hh.mm.ss.log but DeploymentSummary.html should give you a high-level summary
Also, you can find more logs in C:\Users\xxxx\AppData\Local\SAS\SASDeploymentWizard
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.