BO4 - memory usage on servers sitting at high 80% and 65% but not much running

Hi,

We have a 2-node bo4 cluster which are using about 65% and 80% physical ram but are not actually running much processes.

24gb ram on each cluster.   Not execeeding menory but seems high for not much activity.

Have checked on differeent days and seem similar.

Thoughts?

Thanks