Various operations by Management Center system itself, manual or automated jobs or tasks made by administrator are logged. These logs can be seen under Management Center UI > Administration > Logs .
Most often than not, sizes of these logs are miniscule in respect to overall disk usage which can be ignored or keep a bit longer.
Management Center 3.3.4 .
Depends on use case, there may be times administrator may want delete logs such as old debug logs that is no longer relevant on task at hand.
All logs under Management Center UI > Administration > Logs > Active can not be deleted. As the tab name suggest, Active logs are currently being used and written by Management Center.
Most logs under Administration > Logs > Archived are the rotated logs which can be deleted except for:
Said logs are likely needed and should be automatically included when uploading diagnostics logs (a.k.a. SOS troubleshooting logs) via CLI.
Note: Earlier Management Center releases may vary when looking at the UI (e.g. Active and Archived are all in one tab) but same concept applies.