No, you cannot enable/diable storage system cache on pool LUNs. They use the cache settings of the storage system, meaning that if you have read and write cache enabled for the storage system, the pools will use read and write cache automatically.
is it possible to temporarily disable write cache on luns from a thin SATA pool so that writes to the slow lun don't soak the cache and negatively impact faster luns?
disable write cache for pool luns