All the discussions/questions I have found related to disk sanitize have helped but thought I would post a new question to see if anyone has over the years done the process and will share with updated results.
I have a remote customer datacenter that is being shutdown. They have a six node cluster with a mixture of SSD and NL-SAS <7200 rpm> disks. We are working out a schedule when everything can be destroyed and the drives sanitized. Customer wants to ensure all data is securely wiped, not to DOD standards necessarily but better than just zeroing the drives.