Products and versions:
VTL3500 V100R002
VTL6000 V100R003C02
VTL6900 V100R005
If the Tape Capacity On Demand option of a VTL is enabled, you cannot expand the capacity of VTL tapes.
If the Tape Capacity On Demand option of a VTL is disabled, set properties of the VTL again and enable the Tape Capacity On Demand option. Original tapes inherit original properties of the VTL. These tapes cannot be expanded on demand. Newly created tapes inherit changed properties of the VTL. These tapes can be expanded on demand. After these tapes are expanded, the maximum capacity is the same as the default maximum capacity defined in VTL properties.