rdma and log_mtts_per_seg when installing DB2 10.5

I got the following errors when running db2prereqcheck:

Validating "rdma" ...
Found package "rdma" on host "localhost.localdomain".
DBT3566E  The db2prereqcheck utility detected that the service named "rdma" is not enabled on host "localhost.localdomain".
   ERROR : Requirement not matched.


Validating "modprobe.conf" ...
DBT3588W  The db2prereqcheck utility was unable to validate the configuration of the log_mtts_per_seg parameter on the following host machine: "localhost.localdomain". Reason code: "1".
   WARNING : Requirement not matched.


After doing some research, since I am not using the DB2 PureScale features, it should be OK to ignore these errors.