Receiving an error ‘mdadm failed to run_array’ while executing a command on Debian or Ubuntu Linux? We can help you fix it.
We recently received a request from our customer where he received an error “Failed to RUN_ARRAY /dev/md0 invalid argument” while running the below command.
mdadm -Ac partitions /dev/md0 -m dev
Here at Bobcares, we have seen several such RAID-related errors as part of our Server Management Services for web hosts and online service providers.
Today we’ll see the cause for this error message. Also, let us see how to rebuild the array on Linux operating system using mdadm command.