Is still recommended to not share File and Block LUNs in the same POOL in Unity?

Hi guys,

I was reading, and I saw that File and Block LUNs can use the same Unity POOL, but In best practices is not clear the final recommendations. As the I/O pattern is different, I think is still a good idea to create different POOLs, but, what EMC recommends?

What are de advantages and disvantages of using separate POOLs or just one POOL?