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VMware on AWS - How to restore NSX DFW firewall rules to previous state

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Customers who uses NSX day-in, day-out would like to have a point-in time restore functionality of DFW firewall rules. Many customer have a large footprints in VMC and make changes to DFW quite often. This feature was missing for long time and we could see its included in recent versions . Let's see how DFW configuration roll back works  NSX DFW configuration has versioning, and it is stored in the NSX Manager.  Every time when someone update DFW configuration, NSX creates one more version but keep storing the previous ones. You can rollback for previous config but reapplying it once again.  You can find the options under Networking & Security tab , > Security > Distributed Firewall . In the right side we see an Actions drop down. Choose View to get to the below screen.  Let’s go through the use case:  1. Original state- default config with no custom rules:  a. There are no saved configurations during last 30 days: In my existing test setup, with the current setting

Windows 8–Hyper-V Cluster Enhancement



One of the key improvement on the high availability Virtual Machine is you can configure start-up priority. This option allow you to configure which VM has the high, medium, low priority and even No Auto Start. The VM with high priority start-up will boot up first compare to Medium or Low.



Here is the end result which i’ve configured. (Refer to Priority column)



Move on in term of live migration enhancement, you can now perform multiple Live Migration rather than 1 times. The limit of the multiple live migration is depend on your configuration at the Hyper-V Host and NIC bandwidth throughput.

Setting:- refer to Virtual Machine Move Configuration.



Here is the screenshot of of the live migration. I have initiated 2 Live Migration and the 3rd VM is put into Queue. Once 1st or 2nd VM complete, the 3rd VM will start to perform Live Migration without giving any error message.

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