SAN_Ak,  in  our environment we have VMAX & we do thin provisioing on it.  for your requirement 350G we do in this way.  we will create 5 devices of size 70G once devices are created i will form them as Meta.  once meta is created i wiil bind the meta head to thin pool( FC or sata) based on the rek.  once it is binded to the pool i will assign to the Storage group which is comprise of  storage grp = portgrp+ masking view+ initiator grp   & go to the masking view to see the LUN id for the device i created.     NOTE: in our environment we will create the deivces based on our requirement & more over we can create a single TDEV or hyper of size 240G on the vmax.    hope this helps....
 Hi all, I am stuck in a situation where i need to create LUNs of different sizes, I have hyper sizes of 16,33,67,134,240 plus something...what is best practice to create LUNs of sizes like e.g..350gig..considering best practices and low wastage on space... ??..This is on VMAX and thin provisioning in place..  Here questions like many meta members, few meta members, number of hypers in a meta should be even or multiple of 2 (2^n).
Can concatenated Meta be of different hyper sizes ?