I am trying to estimate my cluster size based on an excel sheet provided by elastic.co in a webinar in 20/05/2021 about "elastic sizing", I filled the daily volume data but I see that it gives me only 1 data not for "Hot", I am supposed to get at least 2 data node (1 for replica and 1 for saving data) even for low daily volume data. How to overcome this problem please?
Note: when I change the value of the cell B17 to 32, then it gives me 2 data nodes but I am not allowed to change such a parameter. That been said, my VM must have always 64 GB of RAM ? In case I can't provide a VM with 64 GB of RAM then can I change all values of row 17 ?