Error adjusting from raid 5 to 6 and adding 4 drives

Brief description of the problem

Trying to adjust Raid from 5 to 6 and add 4 drives to the existing 6 drives. Using the online gui.

Error Traceback provided on the Web-UI

Error running a command. cmd = /sbin/btrfs device add /dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A /mnt2/maindata. rc = 1. stdout = ['']. stderr = ['/dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA appears to contain a partition table (PMBR).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A', ''] Traceback (most recent call last): File "/opt/rockstor/src/rockstor/rest_framework_custom/generic_view.py", line 41, in _handle_exception yield File "/opt/rockstor/src/rockstor/storageadmin/views/pool.py", line 406, in put resize_pool(pool, dnames) File "/opt/rockstor/src/rockstor/fs/btrfs.py", line 209, in resize_pool return run_command(resize_cmd) File "/opt/rockstor/src/rockstor/system/osi.py", line 115, in run_command raise CommandException(cmd, out, err, rc) CommandException: Error running a command. cmd = /sbin/btrfs device add /dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A /mnt2/maindata. rc = 1. stdout = ['']. stderr = ['/dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA722020ALA331_YBKJELBD', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFGJA1YA', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA appears to contain a partition table (PMBR).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YFHVLEHA', '/dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A appears to contain a partition table (gpt).', 'ERROR: use the -f option to force overwrite of /dev/disk/by-id/ata-Hitachi_HUA723020ALA641_YGGPHY9A', '']