I have a LUN in our VMware 6.7.0 world. For a specific project we need to safe-delete (with a standard method like DoD 5220) the data on this LUN with some kind of deletion protocol. The underlying storage system is a 3PAR SSMC with VMFS 5 and the SCSI Controller is VMware Paravirtual. The LUN is used by ~15 VMs (which are all marked for deletion) as storage with Tick-Provision Lazy-Zeroed.
After a while searching the web I only found the paid solution "Blancco LUN Eraser". However, we have to delete it today. Is there any other way to secure-delete with a protocol?
My first idea was to just use DBAN on each individual VM and delete every individual "Disk". After that just deleting the LUN in vSphere. This was discussed at VMWare too: https://communities.vmware.com/message/989618#989618
Any ideas? I'm running out of possibilities and ideas myself.