6027-2749 Specified locality group 'number' does not match disk 'name' locality group 'number'. To change locality groups in an SNC environment, please use the mmdeldisk and mmadddisk commands.
Explanation
The locality group specified on the mmchdisk command
does not match the current locality group of the disk.
User response
To change locality groups in an SNC environment,
use the mmdeldisk and mmadddisk commands.