yes, your symclone has to be in activated state, and the actual device state should be "Copied". The command to restore is:  symclone -g restore  after restore is complete you will need to run "symclone split" to be able to run "symclone recreate" again.
Need help crafting symclone restore parameters.  1) Our initial setup of symclone is:  symclone -d create -precopy -differential -exact -tgt -nop  2) To active initially                        symclone -d activate -tgt -nop   Daily routine for symclone is as follows  3)  symclone recreate -d -precopy -tgt -nop  4)  symclone activate -d -tgt -nop   My understanding is that you restore while in activate mode. My understading is that you can perform a differential restore.  what parameters do I need for the symclone restore procedure do I need in case I need to restore from the target volumes?
symclone restore parameters