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I have 2 similar servers. Since upgrading one from CentOS 5.5 to 6, disk write performance in kvm guest VMs is much worse. There are many, many posts about optimising kvm, many mentioning disk performance in CentOS 5 vs 6. I've tried various changes to speed up write performance, but northing's made a significant difference so far: - Install virtio disk drivers in guest - update the

I am attempting to use libvirtd/kvm on CentOS 5.latest to migrate a SCO OpenServer 5.0.6a VM from the old VMware server. I have converted the multiple vmdk disk files to a single file, then used qemu-img convert to create files for libvirtd, both qcow2 and raw formats. After many attempts to get this working I'm up against what appears to be a brick wall. + The VMware VMs are using

With the current talk on bonding, I have a few questions of my own. I'm setting up a KVM host with CentOS 6.3 x86_64 on which I'd like to attach the VMs to a bonded interface. My target setup is one where two GigE NICs are bonded and then the KVM bridge interface is attached to the bonded interface. Initially I tried to use the balance-alb mode (mode6), but had little luck (receiving