Is this SWAP so scary?

Question

Swap

The server has 125GB of RAM, about 6 is used, the rest of the memory is in the cache, it seems like it should be, since all the memory works, but over the past 2 weeks SWAP (4GB) has started to clog, now it is about 40MB, by what principle files go to SWAP despite the fact that there is a lot of RAM in the cache?

Answer 1

Why allocate swap on the server if there are 120 gigabytes of memory?
If 120 is not enough, then swap will not save you from the cataclysm. In addition to the fact that it is much slower than the RAM (if not an ssd disk, of course)