I am  looking to create a series of DP tiers on a VMAX to support Raid 10 configuration for an exchange enviroment. The design I am working from calls for two DP tiers one containing 38 disk the other 8 disk to be created from a single physical disk group . However I see no way to actually specify what number of disk are in each group, it allows me to specify the disk group but not the actual number of disks etc. Is there a way to actually specify what is in each DP tier  in terms of disks

The plan  as far as I can tell is to create these two DP tiers as mirrored disk at the physical level then create stripped meta devices across these to give me raid 10.

I can just create a series of raid 1 volumes directly from the disk group to give me the same effect but would rather use the DP tier function if I can find a way to actually create more than one DP tier group from the same disk group