So, to get straight to the point, I am a DW Frost tank who is having problems tanking. I was a BE pally tank in BC, but I am quite sure that dk tanking is different from consencrate/afk the whole fight. Here is my armory in tank gear/spec. I am having issues finding enough gear to get both a decent amount of health, and the defense cap. And in few cases, I am having issues holding aggro. My cycle for tanking is usually icy touch for the trinket proc, then HB-Obliterate-BS- and if needed, unbreakable armor and IBF. On aoe mobs, I use HW DND and bloodboil.
I am wondering if anyone could tell me (whether or not they think, or know) what I am doing wrong with the cycle, and what I should do with the gear in order for me to be able to tank in a heroic/raid.

