# UNMAP Capability Feature Behavior

LSA behavior for MegaRAID 7.8 designs and later include the behaviors that follow.

- Display the PD Property, whether the PD (physical drive) is UNMAP capable or not.
- Display the PD Capability, whether the PDs can be used for logical drives (LDs) for the UNMAP feature.
- Lets users modify the UNMAP capability of the volume using the VD Modify (Enable/Disable) Properties option.
- Lets users create an UNMAP supported volume.

LSA behavior for MegaRAID 7.8 designs include the following limitations.

- The UNMAP feature is not supported for EPD/JBOD designs.
- Host software applications cannot support firmware in designs earlier than MegaRAID 7.8 because of the change in the MegaRAID firmware API.

Parent topic: UNMAP Capability Feature