I need some hints how to calculate the total disk usage of our graylog installation.
My guess: Max number of indices:20 with 1GB per index = 20GB for this index set - correct ?
The total usage of all index sets is now about 40GB (index set overview: total) but at the disk 120 GB is used. How can I calculate the total amount of space needed? I want to prevent the disk from running full by setting the rotation per disk size.
Did I miss some important facts?