My group's looking to rollout a ClearCase implementation soon. We're a heavy NetApp house and most obviously want to use our filers in any implementation we come up with. However, I'm getting mixed stories as to the roll my filers can play in with ClearCase.
Sounds like you may have already seen this information, but if not:
http://www.netapp.com/technology/level3/atria.html
gives the official NetApp line on using ClearCase NetApp filers.