There is the possibility of data loss if the foreign configuration cannot be resolved successfully, so ensure that there is a validated backup of the data.
For clarification would you confirm the following;
What RAID level are you running?
What is the status of the virtual drive, as well as the hard drives?
Are you able to boot to the OS?
For more information on foreign configurations, follow the link and select 'What to do if a Foreign Config is present' for the available options and what each option entails.
Dell EMC, Enterprise Engineer
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