;-)   The load balancer will work with Hybrid arrays.  What can sometimes happen is that a relatively smaller hybrid with very large SATA arrays.   So no matter what most of the work will be done by the SATA arrays since they have the majority of the space.   So much depends on the type of I/O the group is handling.   presuming the 6100 is at 6.0.x,  upgrade it to 6.0.10 first.  QA can't test every combination of firmware and the array operations, so you could have a problem moving a volume from 5.2.x pool to the 6.0.x pool.   Regards, 
Hello, We recently purchased a new PS6100XS to add to our existing Equallogic Group which contains 1 PS4100X and 1 PS4100XV.  I've read on the forums that I should not add the PS6100XS hybrid array to the current storage pool, but I should instead create a new storage pool since the load balancer doesn't equally distribute the IOPS to the hybrid array.  Is this Dell's recommendation in a best practices document I missed?  Also, my plan is to add the PS6100XS to the current group and create a new storage pool to move the volumes from the initial pool to it so I can upgrade the firmware on those two arrays without any impact to production.  I know that Dell only supports the running of different firmware during the time it takes to upgrade the firmware on the other arrays, but I'm wondering if there would be an issue with the volume moves since they will be on different FW levels.  The two PS4100s are running 5.2.2 (I can see Don W grimace as I type that).  Thanks for your input.  Jake
Adding a new PS6100XS to our group