Single md physical device limit

Without drastically modifying the kernel code, is there any way to
increase the physical device limit when building a single md device?  I
believe that the currently limit is 12 physical disks (?)

For reference, I would like to stripe across an entire Dell PowerVault
220S, which has 14 drives in it.

Thanks in advance,
Andy.

Andrew Rechenberg
Infrastructure Team, Sherman Financial Group
arechenberg (at) shermanfinancialgroup.com