Many thanks master...... What about implementing GPFS with powerpath and EMC? Also any docs or links of implementing Active-Active-Passive replicatio available? Can ds8100 be attached to a vplex?
 in the process of  migrating from an IBM SAN DS8100 with SSPC based 3 sites replication connected to multiple IBM Power P7 / Power VM  and IBM Blade flex  to EMC VNX5400. Does anyone have experience doing this or have a recommendation/best practice  on how best to move data from IBM to EMC?  The IBM server P7 are running Oracle 10g and 11g based on IBM GPFS filesystem.
DS8100 to VNX5400