[Cryptography] LUKS on ATA versus on SSD

[Peter Gutmann]

John Levine <johnl at iecc.com> writes:

>On IBM 360 mainframes, the physical structure of the disk was visible to
>application programs.

This is why we have 6-digit booking references, it's the code to locate the
record in the SABRE data store on the IBM 7090.  Inside IBM they were always
called record locators, not booking references.

Peter.