Virtual Memory

As stated on the previous slide, the high end z15 Processor can support up 40TBs of memory, that is real physical memory.

Virtual Storage, up to 16EBs (that is 16 billion gigabytes) is what any given application is aware of and it can be segregated into three specific areas;

24-bit Addressable
31-bit Addressable
64-bit Addressable

See more information on addressing.