You tried to install grub to a single drive ( /dev/sda ) rather than the raid array. You need to make sure to set grub to install to the array ( /dev/mapper/isw_beijhdahca_ARRAY ) instead.
You tried to install grub to a single drive ( /dev/sda ) rather than the raid array. You need to make sure to set grub to install to the array ( /dev/mapper/ isw_beijhdahca_ ARRAY ) instead.