Securely wiping all data from a Sun 7420 ZFS appliance?
I have a customer that's decommissioning their Sun 7420 ZFS appliance and they would like to know how to securely wipe all of their data off of the appliance. I there a known procedure that they could use to remove all of their data from their 7420 array? If so, please provide documents or links.
Thanks in advance for any help you can provide.