Just went through rack/pump/hose replacement on mine. If it dumped all the fluid in a very short period of time (and WAS NOT significantly leaking before) - then I'd take a good look at the hoses. While the rack seals can fail catastrophically, it doesn't happen that often.

As someone else alluded to, the rack may have been replaced before. So knowing what it came with or what's in it now doesn't really tell you much of anything. From underneath the car if you clean up the housing in the pinion area you may be able to make out the CAM/TRW or ZF logo. You can't rely on how the inner tie-rod bellows fits the tie rod. As I was trying various remanufactured racks for decent fit on mine - I came across a ZF reman rack with the CAM/TRW type tie rod bellows. So that way of ID'ing the racks is suspect unless you're absolutely certain that the rack in the car is original.

Lastly - the fluid carrying damaging particles (metal or old bits of seals/hose deteriorating from the inside) often damages both rack and pump. If the rack has failed and you're keeping the car for a while - you'd do well to replace the whole system - hoses, pump and rack. That way debris in remaining fluid won't take out the new piece you put in. I believe this is the primary reason remanufactured racks get a bad rap. The fluid is contaminated and/or the hoses are deteriorating on the inside - a new rack is installed and is immediately hit with fluid that has debris in it. Not too long after - another component starts leaking. I replaced all components and added a filter to the return line. Also made a commitment to change the fluid annually. PS systems typically aren't maintained at all - amazing to me, now that I know a bit more, that they last as long as they do.
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82 242 5.0L; '10 Cayman S; '15 Honda Fit