Difference between revisions of "Jontow Homelab KVM"

Revision as of 21:47, 16 October 2015

Ubuntu 15.04 Notes

Overview

This section should get a general build of a VM host running KVM with libvirt (virsh)
and 2TB of RAID1 (softraid) running on Ubuntu 15.04 server. The hardware platform
that this section targets/was tested on is a Sun Fire X2200 M2. There is a hardware
specific notes section below.

The disks will be setup with RAID and LVM, giving a maximum compromise of reliability
and flexibility. Swap partitions are setup outside of softraid to maximize performance.

Disk Config

(2) x 2.0 TB disks in chassis, built at install time using the following general procedure:
- From aux shell: fdisk /dev/sda and "g" to GPT the disk, repeat for /dev/sdb
- Create a new (bios_grub) partition on each disk: ~256MB is fine
- Create any swap partitions necessary
- Create a new identically sized partition on each disk, "Use as: physical volume for RAID"
- Configure Software RAID: RAID1, 2 devices, 0 spares, select the two identical partitions as members.
- Configure LVM:
  - Create VG with PV /dev/md0 (named "vm1-vg")
  - Create LV (20G) from VG "vm1-vg" (named "vm1-root")
  - Create LV (20G) from VG "vm1-vg" (named "vm1-iso-0")
  - Create LV (1T) from VG "vm1-vg" (named "vm1-store-0")
  - Setup "vm1-root" as / with ext4 FS
  - Setup "vm1-iso-0" as /vm1-iso with ext4 FS
  - Setup "vm1-store-0" as /vm1-store-0 with ext4 FS
- When asked, install grub to "/dev/sda" (it'll try to use "/dev/mapper", override this.)
- After firstboot of system, run "dpkg-reconfigure grub-pc"

Packages

 $ sudo apt-get install zsh multitail screen sysstat openssh-server nfs-kernel-server
 $ sudo apt-get install qemu-kvm libvirt-bin openvswitch-switch openvswitch-common
 $ sudo apt-get install libpolkit-agent-1-0 libpolkit-backend-1-0 policykit-1
 $ sudo apt-get install virtinst

System Config

/etc/hosts :

127.0.0.1       localhost
127.0.1.1       vm1

10.49.249.20    vm1.je
10.49.249.21    vm2.je

10.49.254.20    vm1.xc  vm1
10.49.254.21    vm2.xc  vm2

# The following lines are desirable for IPv6 capable hosts
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

Setup storage repo:

 $ sudo ln -s /vm1-store-0 /vm-store-0

NFS

/etc/exports (on vm1):

 /vm1-store-0            vm2.xc(rw,sync,no_subtree_check,no_root_squash)

Enable/start NFS:

 $ sudo systemctl enable nfs-kernel-server
 $ sudo systemctl start nfs-kernel-server

@@ Line 1: / Line 1: @@
 == Ubuntu 15.04 Notes ==
-=== Packages ==
+=== Overview ===
+This section should get a general build of a VM host running KVM with libvirt (virsh)<br/>
+and 2TB of RAID1 (softraid) running on Ubuntu 15.04 server.  The hardware platform<br/>
+that this section targets/was tested on is a Sun Fire X2200 M2.  There is a hardware<br/>
+specific notes section below.<br/>
+<br/>
+The disks will be setup with RAID and LVM, giving a maximum compromise of reliability<br/>
+and flexibility.  Swap partitions are setup outside of softraid to maximize performance.<br/>
+=== Disk Config ===
+* (2) x 2.0 TB disks in chassis, built at install time using the following general procedure:
+** From aux shell: fdisk /dev/sda and "g" to GPT the disk, repeat for /dev/sdb
+** Create a new (bios_grub) partition on each disk: ~256MB is fine
+** Create any swap partitions necessary
+** Create a new identically sized partition on each disk, "Use as: physical volume for RAID"
+** Configure Software RAID: RAID1, 2 devices, 0 spares, select the two identical partitions as members.
+** Configure LVM:
+*** Create VG with PV /dev/md0 (named "vm1-vg")
+*** Create LV (20G) from VG "vm1-vg" (named "vm1-root")
+*** Create LV (20G) from VG "vm1-vg" (named "vm1-iso-0")
+*** Create LV (1T) from VG "vm1-vg" (named "vm1-store-0")
+*** Setup "vm1-root" as / with ext4 FS
+*** Setup "vm1-iso-0" as /vm1-iso with ext4 FS
+*** Setup "vm1-store-0" as /vm1-store-0 with ext4 FS
+** When asked, install grub to "/dev/sda" (it'll try to use "/dev/mapper", override this.)
+** After firstboot of system, run "dpkg-reconfigure grub-pc"
+=== Packages ===
    $ sudo apt-get install zsh multitail screen sysstat openssh-server nfs-kernel-server
    $ sudo apt-get install qemu-kvm libvirt-bin openvswitch-switch openvswitch-common