Limitations to space efficient FlashCopy

The following limitations apply to space efficient FlashCopy®:

The source and target FlashCopy volumes must be in the same control unit. However, you can allocate the target volume in a different LSS from the source volume.
The relationship must be full volume.
The target device must have an equal or greater number of tracks as the source device.
A space efficient FlashCopy relationship must be a NOCOPY relationship for the duration of the relationship.
A source device can be the source of a FlashCopy V2 (non-space-efficient target) relationship. If both the space efficient and the V2 licenses are installed, the source device can also be the source of a space efficient relationship at the same time.
A specified target track cannot also be a source track. A target track cannot be in more than one FlashCopy relationship.

Note: If you want to configure space efficient volumes and perform FlashCopy operations to space efficient target volumes, enable the DS8000® space efficient feature.