Hello NathanK,      I can see you have a expert handle on this topic, so the attached Engineering White Paper may just be useful to have around in case you need to explain this topic to your associate's in training. Just thought I would offer it up. Find Attached.
First of all I want to say, I am well aware of the misalignment that exists between block size and the parition offset.  That's not what this is about.  My question is, should the partition offset be equal or a multiple of the stripe size.  Currently we have RAID 1 meta luns with a 960K stripe on a DMX-4.  We use a partition offset of 128 sectors (64KB).  A Microsoft consultant beleives we should be using a parition offset of 1920 sectors (960KB).  All of the recommendations from EMC say to use 64KB, and it makes sense to me because 64KB is smaller than the stripe size.  If it were larger then you could cross boundaries, but I don't want to dismiss this if it is important.  Has anyone ever done this or understand why this would be recommended?   Thanks!
Should partition offset match stripe size?