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

[Johnny Billquist]

On 2012-03-23 09.34, Fritz Wuehler wrote:
> 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.

I didn't find any pinouts. Which I really tried hard searching for.
I could only infer from various texts, so my information is no better 
than yours.

I did search for the z196 as well, but the best I could come up with 
suggested a 64GB limit on that one too, although that was also an 
inferred value.

	Johnny