Before the configuration settings of a storage system are changed, System Manager compares the active and persistent configuration values, and the command sequence in the /etc/rc file.

System Manager creates a backup of the /etc/rc files and /etc/hosts files before making any changes, which enables you to restore the configuration settings from these backup files. The backed-up information is overwritten every time a networking operation is performed from System Manager. You can restore corrupt configuration settings in the /etc/rc file from the rc.sysmgr.bak file, and in the /etc/hosts file from the hosts.sysmgr.bak file.