[Cialug] Wiping server hard drives

[Hasler, Chris]

Hello, 

I'm a new member of the group (just joined yesterday).  Does anyone have a good method, process or utility to wipe server hard drives clean when decommissioning hardware? 
I mostly deal with server class hardware containing array controllers with hard drives in RAID configurations so any utility would need to be able to recognize that.  

I've been experimenting with the shred coreutil and it seems to do what I want.  Any other suggestions. 

Thanks,
Chris H.