Tag Archives: operation

Design of OpenStack Cloud Data Center in My Mind

The subject has 3 meanings In OpenStack framework It’s a Cloud, which is dynamic, not static. Self service. You get what you need almost immediately. It’s production in data center with high volume traffic of CPU, disk and network Technically, … Continue reading

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/etc/udev/rules.d/70-persistent-net.rules makes network unavailable

After launching a VM, sometimes network becomes unavailable until you manually remove [root@j3ffyang~]# rm -fr /etc/udev/rules.d/70-persistent-net.rules The workaround is to stop generating this rule mv /lib/udev/rules.d/75-persistent-net-generator.rules /tmp To process this in batch for i in `cat /tmp/allnode.lst | awk ‘{print … Continue reading

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