SyncRep snapshot reserve

We upgraded our Equallogic array from firmware 7.1.9 to 8.1.1. After this upgrade we had a lot of volumes telling us the snapshot reserve for synrep was above warning level and that we need to increase the snapshot reserve. Some volumes are very small and i need to increase the snapshot reserve to 100% to correct the warning. Is this normal behaviour, or is this corrected by disabling and enabling the syncrep? Does anyone know if there are best practices about snapshot reserve size for syncrep volumes? Thanks in advance....