What do you mean with "EMC database?"
Read this for an example of LVM online migration: "
http://ermanarslan.blogspot.com.tr/2014/10/lvm-online-migration-of-oracle-database.html"
As for your question, we don't care where the luns/disks are coming from. They can be EMC, or any other storage. We are operating on the disk files (/dev/blabla) while we are doing LVM online migrations.