6027-3409 Failed to enable maintenance mode for this file system. Maintenance mode can only be
enabled once the file system has been unmounted everywhere. You can run the mmlsmount
<File System> -L command to see which nodes have this file system mounted. You can also
run this command with the --wait option, which will prevent new mounts and
automatically enables maintenance mode once the unmounts are finished.
Explanation
An attempt was made through mmchfs command to enable maintenance
mode while the file system has been mounted by some nodes.
User response
Rerun the command after the file system has been unmounted everywhere, or run the
command with --wait option to enable maintenance mode for the file
system.
