Overview
We recommend to use VMs for NMS Prime. This will make life easier in the future, because:
Pros while using VMs:
- full backup possibility (snapshots)
- easy updates and backwards compatibility
- hardware independence
- more flexible while moving towards HA-architecture (High Availability) and Clustering
We use qemu KVM architecture with the virt-manager GUI.
Pros while using KVM:
- completely free / open source
- native linux kernel support
- large community
- fast, stable and worldwide tested
Recommended file format is *.qcow2. This file format will only allocate as much space as required on the real host.
Setting up the real host
We also use CentOS 7 on the real machines. This makes life easier, because we only need to know CentOS config style. Of cause you could use other Linux distribution on the real host.
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This is a excellent article on how to setup the real host system: https://www.linuxtechi.com/install-kvm-hypervisor-on-centos-7-and-rhel-7/ |
Required packages:
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yum install qemu-kvm qemu-img libvirt libvirt-python libvirt-client virt-install virt-viewer bridge-utils |
Start libvirt:
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systemctl start libvirtd |
Networking
We use bridge networking API. Things you need to do is:
- real host: all IPs must run on the bridge interface and not on the real network
- real host: assign the bridge device to your real network interface
- VM: assign the VM to your new bridge device
This is perfectly explained here: https://www.linuxtechi.com/install-kvm-hypervisor-on-centos-7-and-rhel-7/
Download CentOS 7
https://www.centos.org/download/
http://isoredirect.centos.org/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1708.iso
Create the NMS Prime VM
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Update your system
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yum update -y |