=Install Ganeti=
==Debian 8==
===Install packages===
```
apt-get install drbd-utils ganeti2 ganeti-instance-debootstrap qemu-kvm resolvconf lvm2 bridge-utils lzop
wget http://ftp.us.debian.org/debian/pool/main/g/ganeti-instance-debootstrap/ganeti-instance-debootstrap_0.15-1_all.deb
dpkg -i ganeti-instance-debootstrap_0.15-1_all.deb
```
===PCI Passthrough===
```
echo "pci-stub" >>/etc/modules
echo "vfio" >>/etc/modules
echo "vfio-pci" >>/etc/modules
```
===Networking===
```
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet manual
auto br-lan
iface br-lan inet static
address 134.197.X.X
netmask 255.255.255.0
gateway 134.197.X.X
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
# Replication network DRBD
auto eth1
iface eth1 inet manual
auto br-rep
iface br-rep inet static
address 172.X.X.X
netmask 255.255.255.0
bridge_ports eth1
bridge_stp off
bridge_fd 0
bridge_maxwait 0
```
===DRBD Setup===
```
echo "options drbd minor_count=128 usermode_helper=/bin/true" >/etc/modprobe.d/drbd.conf
echo "drbd" >>/etc/modules
rmmod drbd # ignore error if the module isn't already loaded
modprobe drbd
update-initramfs -u
```
===Initialize Master Node===
```
gnt-cluster init \
--master-netdev=br-lan \
--enabled-hypervisors=kvm \
-s 172.20.128.11 \
--vg-name vg-ganeti \
--compression-tools gzip,gzip-fast,gzip-slow,lzop \
$HOSTNAME
gnt-cluster modify -H kvm:kernel_path=,initrd_path=
#Fix DF logjam
openssl dhparam -out dhparams.pem 2048
cat dhparams.pem >> /var/lib/ganeti/server.pem
```
===Add Node===
```
gnt-node add -s 172.X.X.X cnode#.cse.unr.edu
```
==Configuration==
===GFX Passthrough===
```
lspci -nn | grep $YOUR_PCI_DEVICE
echo '0000:02:00.1' | tee /sys/bus/pci/devices/0000:02:00.1/driver/unbind
echo '0000:02:00.0' | tee /sys/bus/pci/devices/0000:02:00.0/driver/unbind
echo 10de 0be3 | tee /sys/bus/pci/drivers/vfio-pci/new_id
echo 10de 0a65 | tee /sys/bus/pci/drivers/vfio-pci/new_id
gnt-instance modify -H kvm_extra="\
-device ioh3420\,bus=pci.0\,addr=1c.0\,multifunction=on\,port=1\,chassis=1\,id=root.1 \
-device vfio-pci\,host=02:00.0\,bus=root.1\,addr=00.0\,multifunction=on\,x-vga=on \
-device vfio-pci\,host=02:00.1\,bus=pci.0\,addr=0x9 \
-cpu host\,kvm=off" instance1
```
Grub Changes for booting
```
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=20
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8"
GRUB_TERMINAL=serial
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
```
=Clusters=
==core.cse.unr.edu==
===Nodes===
====Engineering Cluster====
```
134.197.20.140 g.engr.unr.edu
134.197.20.144 g1.engr.unr.edu
```