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====== KVM ====== Kernel-based Virtual Machine (KVM) is a virtual machine implementation using the operating system's kernel. This often allows for greater performance than when using virtual machine solutions which rely on user-space drivers. Upon provisioning of your VPS, all KVM based VPS are ISO only installs of the OS. You must login to your SolusVM Control Panel to manage your VPS and change the ISO to your desired OS then install it yourself. Please keep in mind that as with all BuyVM products, our KVM comes without any support or management: if you are unable to install your own OS please open a ticket to the billing department to request an account credit. ===== Basic Install ===== - Log in to the [[|VPS Control Panel]] - Click on "Manage" next to the VPS you wish to set up - Click on "Power Off" - Click on "Power Off VPS" - Click on "Main View" - Click on "Unmount" below "CDROM Drive" - Choose which ISO you would like to use and click "Mount" - Change "Boot Order" to "(1) CDROM (2) Hard Disk)" - Click on "Boot" - Click on "Boot VPS" - Click on "Main View" - Click on "VNC" - Use the resulting Java window to complete a standard install of your operating system. - Click on "Main View" - Click on "Unmount" - Change "Boot Order" to "Hard Disk only" - Enjoy your VPS! ===== Limitations ===== Due to the requirements for each OS we have used medium groups to restrict what you can install simply because you will not be able to install them due to your plan's memory allotment, below are the images available for each plan: ==== 128MB ==== * Arch Linux * Debian * FreeBSD * Gentoo * Ubuntu 10.04 LTS * Ubuntu 11.04 * gParted * Mikrotik (BuyVM does not provide licensing for any products, please purchase any required licenses separately.) * vyatta 6.2 * Windows 2003 (note: 256mb recommended.) ==== 256MB ==== * CentOS (5 and 6 require 256mb minimum memory for text-base installs) * Note: 128MB images are also available ==== 512MB-4GB ==== * Fedora 15 * OpenSUSE 11.4 * Scientific 6.1 * Note: 128/256MB images are also available ===== Networking ===== ==== IPv4 ==== === Public === DHCP is hit or miss with KVM, if your networking fails to setup automatically please use the following information to configure it manually: * Netmask: * Gateway: x.x.x.1 (x.x.x being the first 3 parts of your main IP.) * Las Vegas Resolver #1: * Las Vegas Resolver #2: * Buffalo Resolver #1: * Buffalo Resolver #2: Here is a Debian example: auto eth0 iface eth0 inet static address netmask gateway === Private IP address === * Netmask: * Gateway: **Do not set a gateway** Below is an example for Debian: auto eth1 iface eth1 inet static address YOUR_PRIVATE_IP_HERE netmask ==== IPv6 ==== === Las Vegas === * Gateway: 2605:6400:2:fed5::1 * Netmask: /48 == Example configuration for Debian in Las Vegas == iface eth0 inet6 static address YOUR_IPV6_ADDRESS_HERE netmask 48 gateway 2605:6400:2:fed5::1 === New York === * Gateway: 2605:6400:1:fed5::1 * Netmask: /48 == Example configuration for Debian in New York == iface eth0 inet6 static address YOUR_IPV6_ADDRESS_HERE netmask 48 gateway 2605:6400:1:fed5::1 ==== Windows ==== * Choose Intel PRO/1000 as the NIC in the VPS panel, and then once the OS is installed make sure to upgrade the intel ethernet driver to the latest Intel PRO/1000MT driver from ===== Known Issues/Informational ===== ==== Intel E1000 NIC Drivers ==== * Drivers for the e1000 Virtual NIC can be downloaded via [[|]] * Drivers for the e1000 Virtual NIC are also available via the Intel E1000 Driver CD, please use these only if you are unable to download the latest drivers via the URL above as these are only meant to enable internet access if you are otherwise unable to. ==== Pagefile/Swap Disclaimer ==== Please set reasonable Pagefile/Swap sizes as excessive IO caused by abusing these will result in suspension, repeated abuse will result in termination without credit nor refund. ==== Poor Disk Performance ==== You may be unsatisfied or have noticed poor I/O performance due to the fact that all KVM based VPS are provisioned with IDE based disks by default, this is required as not all OS play well with the VIRTIO BUS, namely Windows. The VIRTIO driver floppy is automatically mounted with your VPS during bootup time so be sure to select the drivers off this disk when installing Windows. ==== Poor Network Performance On Linux ==== If your virtual server has < 512MB RAM you'll likely suffer poor network performance due to strict default buffer sizes. To get around this please add the follow to your /etc/sysctl.conf <code> net.core.rmem_max=16777216 net.core.wmem_max=16777216 net.ipv4.tcp_rmem=4096 87380 16777216 net.ipv4.tcp_wmem=4096 65536 16777216 </code> Once you're done this be sure to ''sysctl -p'' to apply it. These settings will automatically apply during restarts so you shouldn't need to cron/script anything else.

kvm.1382987942.txt.gz · Last modified: 2013/10/28 12:19 by Francisco Dias