RHEL 5 includes the now ancient Xen 3.0 hypervisior. A lot has been improved since then, especially in the current 3.3 release. Additionally, RedHat now owns the company behind KVM, so it is unlikely they will spend much time backporting Xen stuff for RHEL 5.3 or the …

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I just went through hell in a handbasket trying to get 802.3ad Link Aggregation set up on a Centos 5.2 Xen box. Setting up link aggregation itself isn't that bad - http://wiki.centos.org/TipsAndTricks/BondingInterfaces for a simple guide (after your managed switch is configd) - but what …

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