Comments about furling the sail to the point that you wrap the sheet around the headstay a few wraps is very good information. The people who leave a bit of a corner standing proud from the furled sail attached to the sheets enable the wind to collect inside and if very windy, can open up the sail and do damage. You mentioned hurricanes. If a hurricane is heading your way, you should remove the sail all together, including your mainsail and anything else that can blow away, like dodgers, biminis, boom tents, etc.
Depending on the furler manufacturer you have, raising and lowering the sail can vary, but most, other than CDI and maybe a few others, have an upper swivel and a drum for which the furling line is wound up. The halyard attaches to the top of the upper swivel sail, just like it attaches to the head of a hank on sail, but the head of the furling sail attaches to the bottom of the upper swivel. The tack of the sail attaches at the top of the furling drum. There is a slot or two to feed the sail's luff tape into via a feeder fitting a bit up from the top of the furling drum allowing the sail to smoothly ender the slot. In some systems there might be a prefeeder that you thread the sail through first, which enables the lead of the luff of the sail to not be so obtuse as to not feed easily. It gives the sail luff a fair lead to the feeder. Of course, you want to attach the sheets to the clew of the sail before raising the genoa, or otherwise you will be chasing it around while it smacks you in the face if there is any kind of wind. When ready, hoist the jib halyard and secure on the cleat at the mast or deck.
To lower the sail, you release the halyard and pull the sail to the deck.
One of the many advantages of a furling headsail is you leave it up all the time. No need to pull it down and bag and stow it unless a hurricane is on the way. Bags below, take up living space. Most furlers will partially furl the sail when the wind pipes up. With hank on sails, you have to go to the bow, unhank the sail, shove it down the forward hatch and put up another sail bigger or smaller depending on the wnd velocity. With sail on a furler, you just ease some in or ease some out depending on the wind and then you need to change the lead for the sheet to accommodate proper sail trim (another lesson later).
The two slots in many furler extrusions are for changing headsails (used mostly by racers), if they wish to go with a larger or smaller headsail. In this case, the furling drum is removed and the extrusion becomes more of a foil like a Tuff Luff rather than a furler for cruising (although many one design racing boats use furlers with their class headsails). That way they can use deck sweeping racing sails for better performance. You will notice that furling sail's clew is usually quite high off the deck when close hauled.
There you have it. Sail on.