While waiting to replace Xen with KVM somewhere in H1 2009, Red Hat continues to improve its current virtualization platform.
In the new Enterprise Linux (RHEL) 5.3, released this week, the company greatly extended the supported Xen limits:
- from 8 to 32 vCPUs
- from 64GB to 80GB vRAM
- from 32 to 126 pCPUs
- from 64GB to 1TB pRAM
Additionally the Xen included in RHEL 5.3 supports the Intel nested paging tables technology EPT featured inside the new Intel Core i7 (codename Nehalem) processors.