118 lines
5.5 KiB
XML
118 lines
5.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
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xml:id="cli_manage_flavors">
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<?dbhtml stop-chunking?>
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<title>Manage flavors</title>
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<para>In OpenStack, flavors define the compute, memory, and
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storage capacity of nova computing instances. To put it
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simply, a flavor is an available hardware configuration
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for a server. It defines the <quote>size</quote> of a
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virtual server that can be launched.</para>
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<para>A flavor consists of the following parameters:</para>
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<variablelist>
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<varlistentry>
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<term>Flavor ID</term>
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<listitem>
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<para>Automatically generated by OpenStack.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Name</term>
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<listitem>
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<para>Name for the new flavor.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>VCPUs</term>
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<listitem>
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<para>Number of virtual CPUs to use.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Memory MB</term>
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<listitem>
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<para>Amount of RAM to use (in megabytes).</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Root Disk GB</term>
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<listitem>
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<para>Amount of disk space (in gigabytes) to use
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for the root (/) partition.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Ephemeral Disk GB</term>
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<listitem>
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<para>Amount of disk space (in gigabytes) to use
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for the ephemeral partition. If unspecified,
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the value is 0 by default.</para>
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<para>Ephemeral disks offer machine local disk
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storage linked to the lifecycle of a VM
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instance. When a VM is terminated, all data on
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the ephemeral disk is lost. Ephemeral disks
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are not included in any snapshots.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Swap</term>
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<listitem>
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<para>Amount of swap space (in megabytes) to use.
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If unspecified, the value is 0 by default.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>The default flavors are:</para>
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<itemizedlist>
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<listitem>
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<para>m1.tiny (1 VCPU/0 GB Disk/512 MB RAM)</para>
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</listitem>
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<listitem>
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<para>m1.smaller (1 VCPU/0 GB Disk/1024 MB RAM)</para>
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</listitem>
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<listitem>
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<para>m1.small (1 VCPU/10 GB Disk/2048 MB RAM)</para>
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</listitem>
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<listitem>
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<para>m1.medium (2 VCPU/10 GB Disk/3072 MB RAM)</para>
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</listitem>
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<listitem>
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<para>m1.large (4 VCPU/10 GB Disk/8192 MB RAM)</para>
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</listitem>
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<listitem>
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<para>m1.xlarge (8 VCPU/10 GB Disk/8192 MB RAM)</para>
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</listitem>
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</itemizedlist>
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<para>You can create and manage flavors with the nova
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<command>flavor-*</command> commands provided by the
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<filename>python-novaclient</filename> package.</para>
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<section xml:id="cli_create_flavor"><title>Create flavors</title>
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<procedure>
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<step>
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<para>List flavors to show the ID and name,
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the amount of memory, the amount of disk space
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for the root partition and for the ephemeral
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partition, the swap, and the number of virtual
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CPUs for each flavor.</para>
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<screen><prompt>$</prompt> <userinput>nova flavor-list</userinput></screen>
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</step>
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<step>
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<para>If the flavor you want does not exist, you can create a flavor.</para>
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<para>When you create a flavor, you must specify
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the flavor name, ID, RAM size, disk size, and the
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number of VCPUs.</para>
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<screen><prompt>$</prompt> <userinput>nova flavor-create <replaceable>FLAVOR_NAME</replaceable> <replaceable>FLAVOR_ID</replaceable> <replaceable>RAM_IN_MB ROOT_DISK_IN_GB</replaceable> <replaceable>NUMBER_OF_VCPUS</replaceable></userinput></screen>
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<note><para>The Flavor ID should be a number between 1-255 and should not
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contain special characters or spaces.</para></note>
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<para>For a list of optional parameters, run the following command:</para> <screen><prompt>$</prompt> <userinput>nova help flavor-create</userinput></screen></step>
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</procedure></section>
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<section xml:id="cli_delete_flavor"><title>Delete a flavor</title><procedure>
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<step>
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<para>Delete a specified flavor, as follows:</para>
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<screen><prompt>$</prompt> <userinput>nova flavor-delete <replaceable>FLAVOR_ID</replaceable></userinput></screen>
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</step>
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</procedure></section>
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</section>
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