DB version: 126.96.36.199
OS : Oracle Linux 6.8
Grid Infra version : 188.8.131.52
I have a 4-node RAC. Currently , 3rd Node is down due to a hardware issue. This DB runs in physical machines (each node having 80 CPUs, 251 GB RAM).
I have allocated 100 GB for SGA and 14 GB for PGA.
I would like to know if there are Disk latency or SGA,PGA related bottlenecks in this DB ?
I am attaching two AWR reports (from the peak hour 4PM to 5PM)
a. A one-hour report from Instance 4
b. A one-hour global report (all 3 instances)
Any recommedation, however trivial is welcome