[Admin Guide] System requirements
Restructures and moves the Prepare a Lab for Murano section http://docs.openstack.org/developer/murano/install/prepare.html to the Admin Guide Change-Id: I595013898081e7a5086c556dab406f0b4169dd08
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OlgaGusarenko
Olga Gusarenko
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@ -7,6 +7,7 @@ Deploying murano
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.. toctree::
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:maxdepth: 2
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deploy_murano/prerequisites
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deploy_murano/devstack
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deploy_murano/install_manually
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deploy_murano/configure_ssl
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178
doc/source/draft/admin-guide/deploy_murano/prerequisites.rst
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178
doc/source/draft/admin-guide/deploy_murano/prerequisites.rst
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@ -0,0 +1,178 @@
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===================
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System requirements
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===================
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This section provides basic information about the murano environment system
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requirements. Additionally, it contains a description of the performance
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test scenario, which you may use to check if your hardware fits
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the requirements. To do this, run the test and compare the results with
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the baseline data provided.
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Software prerequisites
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~~~~~~~~~~~~~~~~~~~~~~
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Before you install murano, verify your system meets the following
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prerequisites.
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**Supported operating systems:**
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* Ubuntu Server 14.04 LTS
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* RHEL/CentOS
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* Debian
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**System packages for Ubuntu:**
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* gcc
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* python-pip
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* python-dev
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* libxml2-dev
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* libxslt-dev
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* libffi-dev
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* libpq-dev
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* python-openssl
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* mysql-client
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**System packages for CentOS:**
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* gcc
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* python-pip
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* python-devel
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* libxml2-devel
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* libxslt-devel
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* libffi-devel
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* postgresql-devel
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* pyOpenSSL
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* mysql
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Hardware requirements
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~~~~~~~~~~~~~~~~~~~~~
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We recommend that your system meets the following hardware requirements:
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+------------+--------------------------------+----------------------+
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| Criteria | Minimal | Recommended |
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+============+================================+======================+
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| CPU | 4 core @ 2.4 GHz | 24 core @ 2.67 GHz |
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+------------+--------------------------------+----------------------+
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| RAM | 8 GB | 24 GB or more |
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+------------+--------------------------------+----------------------+
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| HDD | 2 x 500 GB (7200 rpm) | 4 x 500 GB (7200 rpm)|
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+------------+--------------------------------+----------------------+
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| RAID | Software RAID-1 (use mdadm as | Hardware RAID-10 |
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| | it improves the read | |
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| | performance almost twice) | |
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+------------+--------------------------------+----------------------+
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Other possible storage configurations:
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* 1x SSD 500+ GB
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* 1x HDD (7200 rpm) 500+ GB and 1x SSD 250+ GB (install the system onto
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the HDD and mount the SSD drive to the directory where the virtual
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machines images are stored)
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* 1x HDD (15000 rpm) 500+ GB
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Testing the performance
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~~~~~~~~~~~~~~~~~~~~~~~
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We have measured the time required to boot 1 to 5 instances of the Windows
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operating system simultaneously. You can use this data as the baseline
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to check if your system is fast enough.
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.. note::
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Use *sysprepped* images for this test to simulate an instance first boot.
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To reproduce the performance test, proceed with the following steps:
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#. Prepare a Windows 2012 Standard (with GUI) image in the ``QCOW2`` format.
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This example uses the ``ws-2012-std.qcow2`` image.
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#. Verify that there are no KVM processes running on the host:
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.. code-block:: console
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ps aux | grep kvm
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#. Make 5 copies of the Windows image file:
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.. code-block:: console
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for i in $(seq 5); do \
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cp ws-2012-std.qcow2 ws-2012-std-$i.qcow2; done
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#. Create the ``start-vm.sh`` script in the directory with the ``.qcow2``
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files:
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.. code-block:: console
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#!/bin/bash
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[ -z $1 ] || echo "VM count not provided!"; exit 1
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for i in $(seq $1); do
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echo "Starting VM $i ..."
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kvm -m 1024 -drive file=ws-2012-std-$i.qcow2,if=virtio -net user -net nic,model=virtio -nographic -usbdevice tablet -vnc :$i & done
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#. Start ONE instance using the command below (as root) and measure time
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between the instance launch and the moment when the Server Manager window
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displays.
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.. code-block:: console
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sudo ./start-vm.sh 1
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To view the instance desktop, connect with VNC viewer to your host
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to VNC screen :1 (port 5901).
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#. Turn off the instance. You may simply kill all KVM processes by running:
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.. code-block:: console
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sudo killall kvm
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#. Start FIVE instances with the command below (as root) and measure time
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interval between ALL instances launch and the moment when the LAST
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Server Manager window displays.
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.. code-block:: console
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sudo ./start-vm.sh 5
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To view VM’s desktops, connect with VNC viewer to your
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host to VNC screens :1 thru :5 (ports 5901-5905).
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#. Turn off the instances. You may simply kill all KVM processes by running:
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.. code-block:: console
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sudo killall kvm
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Baseline data
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-------------
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The table below provides the baseline data that was received in our test
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murano environment.
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+--------------------------+--------------------------+---------------------+
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| | Boot ONE instance | Boot FIVE instances |
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+==========================+==========================+=====================+
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| Avg. Time | 3m:40s | 8m |
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+--------------------------+--------------------------+---------------------+
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| Max. Time | 5m | 20m |
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+--------------------------+--------------------------+---------------------+
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**Avg. Time**
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Refers to the environment with the recommended hardware configuration
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**Max. Time**
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Refers to the minimal hardware configuration
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Host optimizations
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------------------
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You can improve your default KVM installation performance with the following
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optimizations up to 30%:
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* Change the default scheduler from **CFQ** to **Deadline**
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* Use **ksm**
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* Use **vhost-net**
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