The procedures in this chapter guide you through upgrading the Sentinel.
You can upgrade from Sentinel 8.2 or later.
IMPORTANT:If you are upgrading from earlier versions of Sentinel 8.3.0.0, below steps are applicable.
IMPORTANT:When you are upgrading the Sentinel server, make sure to upgrade Collector Manager systems and Correlation Engine systems to the same version of the Sentinel server. Otherwise, you might face some issues in the system due to schema changes or new features changes.
The upgrade process does the following:
Migrates Security Intelligence data and alerts data from MongoDB to PostgreSQL.
Sentinel now stores Security Intelligence data, alerts data, and so on in PostgreSQL instead of MongoDB. The upgrade process will first migrate this data to PostgreSQL and if successful, will automatically proceed with the upgrade. If the data migration is unsuccessful, you cannot upgrade Sentinel.
Generates a cleanup script that you can use to remove data and MongoDB related RPMs.
The data stored in MongoDB is retained as a backup.