Adding to this, vendors like HP and Dell have a "keep your disk" option/policy so that you can have disk shredding vendors physically destroy the faulty disks.

Adding to this, vendors like HP and Dell have a "keep your disk" option/policy so that you can have disk shredding vendors physically destroy the faulty disks. It costs more up front but is a high value option for some financial companies. I was in a company that had this policy with over 50k servers around the world and it gave the customers more confidence in our security and simplified part of our security audit. The shredding vendors recycle the material. I should add that our customer data was encrypted at-rest but we shredded the disks to remove any doubt that on-demand debug logging potentially leaked sensitive data. New managers and directors thought this was a waste of money but as the sales people could attest to, this process paid for itself many times over.