====== Deploy KVM + Open vSwitch + iSCSI + Ubuntu 12.04 x64 ======


  * Hardware: HP Proliant ML115 G5 (1 AMD Opteron + 4GB RAM + 80GB SATA + 2 eth)
  * Install Ubuntu server 12.04 x64 from CD ROM + LVM + OpenSSH server + Virtualization host
  * Use eth1 as mangement interface and configure with static IP
  * Login by SSH client after reboot
  * Verify KVM CPU support
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<code>
# kvm-ok 
INFO: /dev/kvm exists
KVM acceleration can be used
</code>
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  * Upgrade packages to last version and add myuser to libvirtd group
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<code>
# apt-get update
# apt-get upgrade
# adduser myuser libvirtd
# reboot
</code>
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  * Verify KVM is up
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<code>
$ virsh -c qemu:///system list
 Id Name                 State
----------------------------------

</code>
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  * Install **Open vSwitch**
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<code>
# aptitude purge ebtables
# virsh net-destroy default
# virsh net-autostart --disable default
# service libvirt-bin stop
# service qemu-kvm stop
</code>
</WRAP>
NOTE: If install Ubuntu from 12.04.3 LTS server (linux 3.8) you need to manually install "apt-get install openvswitch-datapath-lts-raring-dkms" before next step.
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<code>
# aptitude install openvswitch-switch openvswitch-controller openvswitch-brcompat
# nano -w /etc/default/openvswitch-switch
     BRCOMPAT=yes
# service openvswitch-switch restart
# service openvswitch-controller restart
# reboot
</code>
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  * Verify modules and service:
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<code>
$ lsmod | grep br
     brcompat_mod           13512  0 
     openvswitch_mod        83993  2 brcompat_mod

$ service openvswitch-switch status
     ovsdb-server is running with pid 1349
     ovs-vswitchd is running with pid 1358
     ovs-brcompatd is running with pid 1393
</code>
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  * Configure Open vSwitch
Add bridge "br0" (libvirt compatibility) and connect to eth0 (untagged + VLANs tagged)
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<code>
# ovs-vsctl add-br br0
# ovs-vsctl add-port br0 eth0
</code>
</WRAP>
Add virtual bridges br2 (VLAN tag 2) and br3 (VLAN tag 3)
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<code>
# ovs-vsctl add-br br2 br0 2
# ovs-vsctl add-br br3 br0 3
</code>
</WRAP>
Add dummy entries in /etc/network/interfaces then reboot
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<code>
# nano -w /etc/network/interfaces

auto eth0
iface eth0 inet manual
up ifconfig $IFACE 0.0.0.0 up
down ifconfig $IFACE down

auto br0
iface br0 inet manual
up ifconfig $IFACE 0.0.0.0 up
down ifconfig $IFACE down

auto br2
iface br2 inet manual
up ifconfig $IFACE 0.0.0.0 up
down ifconfig $IFACE down

auto br3
iface br3 inet manual
up ifconfig $IFACE 0.0.0.0 up
down ifconfig $IFACE down
</code>
</WRAP>
Edit libvirt upstart script to wait for bridge:
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<code>
# nano -w /etc/init/libvirt-bin.conf

     - start on runlevel [2345]
     + start on (runlevel [2345] and net-device-up IFACE=br0)

# reboot
</code>
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Verify configuration
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<code>
# ovs-vsctl show

    Bridge "br0"
        Port "eth0"
            Interface "eth0"
        Port "br3"
            tag: 3
            Interface "br3"
                type: internal
        Port "br2"
            tag: 2
            Interface "br2"
                type: internal
        Port "br0"
            Interface "br0"
                type: internal
    ovs_version: "1.4.0+build0"
</code>
</WRAP>
  * Install and configure **iSCSI** initiator
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<code>
# apt-get install open-iscsi
# nano -w /etc/iscsi/iscsid.conf
     node.startup = automatic
# /etc/init.d/open-iscsi restart
</code>
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Discover targets
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<code>
# iscsiadm -m discovery -t st -p iSCSIServerIP
</code>
</WRAP>
Remove unwanted nodes
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<code>
# rm -R /etc/iscsi/nodes/iqnxxxx
</code>
</WRAP>
Configure auth for node
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<code>
# nano -w /etc/iscsi/nodes/iqnyyyy/1234/default
     node.session.auth.authmethod = CHAP
     node.session.auth.username = user
     node.session.auth.password = password

# /etc/init.d/open-iscsi restart

</code>
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  * HW monitor tools
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<code>
# wget http://downloads.linux.hp.com/SDR/downloads/bootstrap.sh
# chmod +x bootstrap.sh
# ./bootstrap.sh -v -r stable ProLiantSupportPack
# gpg --keyserver pgpkeys.mit.edu --recv-key 527BC53A2689B887 && gpg --export --armor 527BC53A2689B887 | sudo apt-key add -
# apt-get update
# apt-get install hp-health

# wget ftp://ftp.hp.com/pub/softlib2/software1/pubsw-linux/p1257348637/v71527/hpacucli-9.10-22.0.x86_64.rpm
# apt-get install alien
# alien --scripts -d hpacucli-9.10-22.0.x86_64.rpm
# dpkg -i hpacucli_9.10-23_amd64.deb
</code>
</WRAP>
  * HW monitor tools UPDATE
Change apt source from
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<code>
deb http://downloads.linux.hp.com/SDR/downloads/ProLiantSupportPack stable/current non-free
</code>
</WRAP>
to
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<code>
deb http://downloads.linux.hp.com/SDR/downloads/MCP/ubuntu precise current/non-free
</code>
</WRAP>
Then
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<code>
# apt-get update

# apt-get --only-upgrade install hp-health
# apt-get --only-upgrade install hpacucli
</code>
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----
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[[hypervisor:lvmstart|Main LVM configuration]] ⇒
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⇑ [[hypervisor:start|Hypervisor]]
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