456869bdee
With the split of the User Guides, there's no need anymore to have orphan and admin_only flags, remove them from the user-guide-admin directory. Change-Id: Id30666b87c7b0ae9fb6c2997cac62e8d52651dec
118 lines
3.6 KiB
ReStructuredText
118 lines
3.6 KiB
ReStructuredText
==============
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Manage flavors
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==============
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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 for a
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server. It defines the "size" of a virtual server
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that can be launched.
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.. note::
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Flavors can also determine on which compute host a flavor
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can be used to launch an instance. For information
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about customizing flavors, refer to the `OpenStack Cloud Administrator Guide
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<http://docs.openstack.org/admin-guide-cloud/content/>`_.
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A flavor consists of the following parameters:
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Flavor ID
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Automatically generated by OpenStack. For
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private flavors, a value from 1 to 255.
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Name
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Name for the new flavor.
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VCPUs
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Number of virtual CPUs to use.
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Memory MB
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Amount of RAM to use (in megabytes).
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Root Disk GB
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Amount of disk space (in gigabytes) to use for
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the root (/) partition.
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Ephemeral Disk GB
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Amount of disk space (in gigabytes) to use for
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the ephemeral partition. If unspecified, the value
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is 0 by default.
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Ephemeral disks offer machine local disk storage
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linked to the life cycle of a VM instance. When a
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VM is terminated, all data on the ephemeral disk
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is lost. Ephemeral disks are not included in any
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snapshots.
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Swap
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Amount of swap space (in megabytes) to use. If
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unspecified, the value is 0 by default.
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The default flavors are:
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============ ========= =============== ===============
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Flavor VCPUs Disk (in GB) RAM (in MB)
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============ ========= =============== ===============
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m1.tiny 1 1 512
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m1.small 1 20 2048
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m1.medium 2 40 4096
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m1.large 4 80 8192
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m1.xlarge 8 160 16384
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============ ========= =============== ===============
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You can create and manage flavors with the nova
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**flavor-*** commands provided by the ``python-novaclient``
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package.
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Create a flavor
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~~~~~~~~~~~~~~~
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#. List flavors to show the ID and name, the amount
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of memory, the amount of disk space for the root
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partition and for the ephemeral partition, the
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swap, and the number of virtual CPUs for each
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flavor::
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$ nova flavor-list
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#. To create a flavor, specify a name, ID, RAM
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size, disk size, and the number of VCPUs for the
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lavor, as follows::
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$ nova flavor-create FLAVOR_NAME FLAVOR_ID RAM_IN_MB ROOT_DISK_IN_GB NUMBER_OF_VCPUS
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.. note::
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The flavor ID is a number from 1 to 255 and
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cannot contain special characters or spaces.
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Here is an example with additional optional
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parameters filled in that creates a public ``extra
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tin`` flavor that automatically gets an ID
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assigned, with 256 MB memory, no disk space, and
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one VCPU. The rxtx-factor indicates the slice of
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bandwidth that the instances with this flavor can
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use (through the Virtual Interface (vif) creation
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in the hypervisor)::
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$ nova flavor-create --is-public true m1.extra_tiny auto 256 0 1 --rxtx-factor .1
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#. If an individual user or group of users needs a custom
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flavor that you do not want other tenants to have access to,
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you can change the flavor's access to make it a private flavor.
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See `Private Flavors in the OpenStack Operations Guide <http://docs.openstack.org/openstack-ops/content/private-flavors.html>`_.
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For a list of optional parameters, run this command::
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$ nova help flavor-create
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#. After you create a flavor, assign it to a
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project by specifying the flavor name or ID and
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the tenant ID::
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$ nova flavor-access-add FLAVOR TENANT_ID
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Delete a flavor
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~~~~~~~~~~~~~~~
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Delete a specified flavor, as follows::
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$ nova flavor-delete FLAVOR_ID
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