[Info-vax] OpenVMS I64 V8.1 "Evaluation Release"?

[Fritz Wuehler]

Johnny Billquist <bqt at softjar.se> wrote:

> No, the z/Arch, even in its latest implementation, does not give you 64 
> physical address pins out of the CPU, so no way you could hook up 2**64 
> bytes of physical memory.

Do you have a pinout handy? If so, I defer to you.

> Sorry, not even close. 512 GB, or 2**39, is where the latest z/Arch 
> machine implementation (z9 EC) is at.

IBM is famous recently for making limitations that aren't so they can sell
you an upgrade with microcode. You cannot infer from how much memory the
system is said to support (and z9 is old, btw, even z10 is EOL, so look at
z196 (I think)) how much it can really support. Like I said, if you or
anybody else has a pinout that would tell us the right answer.