Page volume transfers can happen not only between real devices, but also between real and virtual devices. For better understanding of transfer on various devices based on different scenarios, this matrix can be helpful.
| Volume Transfer Scenarios Actual/RMPV (Capacity) | Transfer ? (Yes/No) |
| Actual/Capacity Volume Available (E.g. 300/400) | |
| Real Device -->Real Device |  |
| Real Device --> Virtual Device (Except for empty virtual device) | |
| Virtual Device --> Virtual Device | |
| Virtual Device --> Real Device | |
| Actual Volume Not Available, Capacity Available (E.g. ?/500) | |
| Real Device --> Real Device |  |
| Real Device --> Virtual Device | |
| Virtual Device --> Virtual Device | |
| Virtual Device --> Real Device | |
| Actual Volume Available, Capacity Not Available (E.g. 200/?) | |
| Real Device --> Real Device | |
| Real Device --> Virtual Device | |
| Virtual Device --> Virtual Device | |
| Virtual Device --> Real Device | |
| Actual/Capacity Volume Not Available (E.g.? /?) | |
| Real Device --> Real Device | |
| Real Device --> Virtual Device | |
| Virtual Device --> Virtual Device | |
| Virtual Device --> Real Device | |
| Actual Volume = 0 (E.g. 0/300) | |
| Real Device --> Real Device | |
| Real Device --> Virtual Device | |
| Virtual Device --> Virtual Device | |
| Virtual Device --> Real Device | |
📓 - Empty real and virtual devices are not eligible for volume transfer. Please check the device for mono/color pages before transferring.