A customer’s OceanStor V3 controller B is red and the system status indicator is red. The correct way for engineers to deal with this problem is:
The InfoEqualizer DNS IP address needs to be the same as the OceanStor 9000 front-end network and customer application network for network interoperability
RAC is a typical "multi-instance, single-database" architecture that is shared by all nodes, accessed in parallel, including database data files, control files, parameter files, online reorganization log files, and even archived log files are placed on shared storage and guaranteed to be simultaneously accessible by all nodes