The Lenovo Storage V7000 supports the ability to dynamically expand the size of a volume if the AIX host is using AIX version 5.2 or later.
The AIXchvg command options provide the ability to expand the size of a physical volume that the Logical Volume Manager (LVM) uses, without interruptions to the use or availability of the system. See the AIX System Management Guide Operating System and Devices for more information.