Great question — answering as the UphillTech team:
I would not be worried about black bears, essentially a non-threat with the proper use of a bear cannister. You are right to be worried about rodents. We did a two night trip there this spring and the cork handles of our hiking poles got chewed up because we left them on the ground a few feet from the tent. I've always had good luck keeping my pack under the rain cover but outside the mesh tent. Never had rodents get into my pack that way, but then again we are fairly careful to not get crumbs in the pack by keeping waste in zip lock bags and/or in the bear canister. The way I see it, I'd rather rodents try to chew my backpack than my tent, but that's a personal decision I suppose.
Full answer by John Huff: https://outdoors.stackexchange.com/a/28465 (CC BY-SA 4.0).
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