[druid-user] Historical storage size

Hello Druid Community,

I am needing some guidance on what to do with my Historical service that is filling up. I currently have a little over 10Gb assigned to my Historical and it is almost filled up (see screen capture attached).
What happens if this fills completely up?
I’ve read that there is a setting, druid.server.maxsize, that can be changed but that it’s usually not necessary. So how do I get more space, or do I need more space? If I don’t need more space what changes do I need to consider?
Currently there are 5 supervisors stream ingesting data, about 2 years of data, with Druid version 0.20.0.
I’ve also attached the historical portion of my deploy for reference.
Thanks for your time.

(Attachment historical.txt is missing)