You cannot create the VMFS Data store with 8 MB Block size initially from VNXe. The workaround for changing the block size is as follows   Can we create LUN on VNXe without wizard? Nope. You can only create the Data store or any FS using the wizard only this is done for the ease of use.  In the newer code (2.1.0.14097) it will by default create it with 8MB block size  Thanks, Rohan  
Is it possible to create VMFS volumes without the wizard on VNXe? I mean now the  with Unisphere Manager the wizard automaticaly creates datastore on esx. But the blcoksize is by default 1MB. We want blocksizes of 8MB. Is it possible to create 8MB blocksize at initial configuration? Or else can you create LUN's on VNXe and attach them after the configuration to ESX.
Default VMFS blocksize ESX