6027-790 Specified storage pool poolName does not match disk diskName storage pool poolName. Use mmdeldisk and mmadddisk to change a disk's storage pool.
Explanation
An attempt was made to change a disk's storage pool assignment
using the mmchdisk command. This can only be done by deleting the disk from its
current storage pool and then adding it to the new pool.
User response
Delete the disk from its current storage pool and then add it to the new
pool.