A very short post this time… The metric ‘swap utilisation (%)’ on the node where Oracle Enterprise Manager resides, shows  permanently a very hig value.

Red Hat Linux, 64-bits, 32GB RAM, 4GB swap.

Solution: Eitherway the memory, or the swap-file.

By adding 4 GB to the swap-file to the existing 4 GB (Oracle recommends a lot more by the way in this case) on 30th of March the metric value had the following behaviour, indicating this was the problem: