In your webinar, you gave the following formula for volume sizing:
I want to just check with a worked example.
so for 1.5TB retained for 7 days with one replica Total Data = 1.5 *7 *2 = 22TB.
Total Storage = 22 TB *1.20 = 26.4TB
Nodes have 64GB ram,
Total Data Nodes = 26400 /64 / 30 = 13.75 +1 = 15 nodes.
Here is my question that was not clear in the slide, the ideal memory:data ratio was shown to be 1:30 for a hot node and was explained that the maximum storage per node was 64 x 30 = 1920 GB or 1.92 TB.
What happens if I increase storage to have fewer nodes for example what if I only had three nodes with 26.4TB of storage compared to 15 nodes of 1.92 TB what would be the effect?
Could someone please clarify, the memory:data ratio portion of the calculation in the example above for me?