“Could not open ‘/etc/oracle/cell/network-config/cellaffinity.ora’”

# whoami

# ls -l /etc/oracle/cell/network-config/cellaffinity.ora

# ls -l  $ORACLE_HOME/bin/oracle 

cellaffinity.ora这个文件是干啥的？我不知道oracle启动到nomount还需要这个参数啊

At start time on an 8-socket system, each database server generates a cellaffinity.ora configuration file. The cellaffinity.ora file resides in the /etc/oracle/cell/network-config directory, and must be readable by the Oracle Database software.

The cellaffinity.ora file contains a mapping between the NUMA node numbers and the IP address of the network interface card closest to each node. Oracle Database uses the file to select the closest network interface card when communicating with the storage servers, thereby optimizing performance. This file is only generated and used on an 8-socket system. On a 2-socket system, there is no performance to be gained in this manner, and no cellaffinity.ora file. The file is not intended to be directly edited with a text editor.

在8-socekt Oracle XD一体机环境中，该文件是用于NUMA和IP地址的映射，用于oracle访问cell 存储节点时优化访问性能。