$R2S$Server Memory usage is greater than 90% - awsdldnval001q   
after restarted the system. the Memory usage is normal only. since closing the ticket. 
 
[vsiramse@AWSDLDNVAL001Q ~]$ free -g 
              total        used        free      shared  buff/cache   available 
Mem:             61          20          17          10          24          29 
Swap:           127           3         124