CP 64-Bit Support
z/VM 3.1.0 introduces support in CP for 64-bit addressing. One important aspect of this support is that the 64-bit version of CP is now able to run in real storage sizes greater than 2 Gigabytes. The performance implications of this support are the subject of the following 3 sections:
Real Storage Sizes above 2G
Minidisk Cache with Large Real Storage
The 2G Line