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5.5 KiB
ReStructuredText
206 lines
5.5 KiB
ReStructuredText
..
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Copyright 2014 2014 Mirantis, Inc.
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Licensed under the Apache License, Version 2.0 (the "License"); you may
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not use this file except in compliance with the License. You may obtain
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a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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License for the specific language governing permissions and limitations
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under the License.
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========================
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Prepare A Lab For Murano
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========================
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This section provides basic information about lab's system requirements.
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It also contains a description of a test which you may use to check if
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your hardware fits the requirements. To do this, run the test and
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compare the results with baseline data provided.
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System prerequisites
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=====================
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**Supported Operation Systems**
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* Ubuntu Server 12.04 LTS
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* RHEL/CentOS 6.4
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**System packages are required for Murano**
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*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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* libmysqlclient-dev
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* libpq-dev
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* python-openssl
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* mysql-client
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* python-mysqldb
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*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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* MySQL-python
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Lab Requirements
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================
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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 will improve read | |
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| | performance almost two times) | |
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+------------+--------------------------------+----------------------+
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Table: Hardware requirements
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There are a few possible storage configurations except the shown above.
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All of them were tested and were working well.
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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 folder where VM images are)
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* 1x HDD (15000 rpm) 500+ GB
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Test Your Lab Host Performance
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==============================
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We have measured time required to boot 1 to 5 instances of Windows
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system simultaneously. You can use this data as the baseline to check if
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your system is fast enough.
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You should use sysprepped images for this test, to simulate VM first
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boot.
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Steps to reproduce test:
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1. Prepare Windows 2012 Standard (with GUI) image in QCOW2 format. Let's
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assume that its name is ws-2012-std.qcow2
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2. Ensure that there is NO KVM PROCESSES on the host. To do this, run
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command:
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::
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># ps aux | grep kvm
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3. Make 5 copies of Windows image file:
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::
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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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4. Create script start-vm.sh in the folder with .qcow2 files:
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::
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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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5. Start ONE instance with command below (as root) and measure time
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between VM’s launch and the moment when Server Manager window
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appears. To view VM’s desktop, connect with VNC viewer to your host
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to VNC screen :1 (port 5901):
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::
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># ./start-vm.sh 1
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6. Turn VM off. You may simply kill all KVM processes by
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::
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># killall kvm
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7. Start FIVE instances with command below (as root) and measure time
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interval between ALL VM’s launch and the moment when LAST Server Manager
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window appears. 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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::
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># ./start-vm.sh 5
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8. Turn VMs off. You may simply kill all KVM processes by
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::
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># killall kvm
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Baseline Data
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=============
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The table below provides baseline data which we've got in our
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environment.
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**Avg. Time** refers to the lab with recommended hardware configuration,
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while **Max. Time** refers to minimal hardware configuration.
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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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Host Optimizations
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==================
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Default KVM installation could be improved to provide better
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performance.
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The following optimizations may improve host performance up to 30%:
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* change default scheduler from **CFQ** to **Deadline**
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* use **ksm**
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* use **vhost-net**
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