While cleaning up the server room, I came across two boxes of old hard drives.  Mostly PATA and SCSI.   They are not of any use to me (too old, too small), and before even considering giving them away I’ll needed to wipe them.  The problem is,  15+ disks  could take a while.  A long while.  After a bit a searching I turned up  Darik’s Boot And Nuke at dban.org.  One of the things that caught my attention was:
“DBAN will automatically and completely delete the contents of any hard disk that it can detect.”
Perfect, now if I can just find a motherboard with fifteen PATA connectors I’ll be all set.   🙂