We have a FortiAnalyzer 1000C Version 5.2.7. Currently we have add new E series firewall but we are unable select E series firewall from FortiAnalyzer dropdown.
May I check izzit because of the firmware issues ? If yes, any suggested stable firmware version and any upgrade path need to follow for the Analyzer because under that firewall will required follow the upgrade path.
As you are jumping to an upper branch, remember that your DB will be reindexed.
This is time consuming depending on your storage utilization and cpu/mem operation load, so, consider upgrading in low occupation hours, or weekend.
You could use cli command
#diagnose sql status rebuild-db
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