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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…

Sierra AirCard 880E on Ubuntu

To get your newly purchased Sierra AirCard 880E on your Ubuntu Hardy, you should follow these simple steps: Make sure you have GCC on your computer: ‘sudo apt-get install gcc‘ Make sure you have kernel sources installed on your computer: ‘sudo apt-get install linux-headers-2.6.24-19-generic‘ Download the driver from Sierra Wireless site Extract and compile (‘make‘,…

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HP EVA bug – Snapshot removed through sssu is still there

This is an interesting bug I have encountered: The output of an sssu command should look like this: EVA> DELETE STORAGE “Virtual DisksLinuxoracleSNAP_ORACLE” EVA> It still leaves the snapshot (SNAP_ORACLE in this case) visible, until the web interface is used to press on “Ok”. This happened to me on HP EVA with HP StorageWorks Command…