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Xen VMs performance collection

Unlike VMware Server, Xen’s HyperVisor does not allow an easy collection of performance information. The management machine, called “Domain-0” is actually a privileged virtual machine, and thus – get its own small share of CPUs and RAM. Collecting performance information on it will lead to, well, collecting performance information for a single VM, and not…

A note about VMware-Server machine security

VMware allow setting a virtual machine as a private machine. By doing so, it actually adds to “/etc/vmware/vm-list-private” an additional comment, stating who is the owner of the machine. For example: cat /etc/vmware/vm-list-private # This file is automatically generated. # Hand-editing this file is not recommended. config “/vmware/Centos4-01/Centos4-01.vmx|root” config “/vmware/Centos4-02/Centos4-02.vmx|user” While it is very effective…