============== Manage flavors ============== In OpenStack, a flavor defines the compute, memory, and storage capacity of a virtual server, also known as an instance. As an administrative user, you can create, edit, and delete flavors. As of Newton, there are no default flavors. The following table lists the default flavors for Mitaka and earlier. ============ ========= =============== ============= Flavor VCPUs Disk (in GB) RAM (in MB) ============ ========= =============== ============= m1.tiny 1 1 512 m1.small 1 20 2048 m1.medium 2 40 4096 m1.large 4 80 8192 m1.xlarge 8 160 16384 ============ ========= =============== ============= Create flavors ~~~~~~~~~~~~~~ #. Log in to the Dashboard and select the :guilabel:`admin` project from the drop-down list. #. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click the :guilabel:`Flavors` category. #. Click :guilabel:`Create Flavor`. #. In the :guilabel:`Create Flavor` window, enter or select the parameters for the flavor in the :guilabel:`Flavor Information` tab. .. figure:: figures/create_flavor.png **Dashboard — Create Flavor** ========================= ======================================= **Name** Enter the flavor name. **ID** Unique ID (integer or UUID) for the new flavor. If specifying 'auto', a UUID will be automatically generated. **VCPUs** Enter the number of virtual CPUs to use. **RAM (MB)** Enter the amount of RAM to use, in megabytes. **Root Disk (GB)** Enter the amount of disk space in gigabytes to use for the root (/) partition. **Ephemeral Disk (GB)** Enter the amount of disk space in gigabytes to use for the ephemeral partition. If unspecified, the value is 0 by default. Ephemeral disks offer machine local disk storage linked to the lifecycle of a VM instance. When a VM is terminated, all data on the ephemeral disk is lost. Ephemeral disks are not included in any snapshots. **Swap Disk (MB)** Enter the amount of swap space (in megabytes) to use. If unspecified, the default is 0. **RX/TX Factor** Optional property allows servers with a different bandwidth to be created with the RX/TX Factor. The default value is 1. That is, the new bandwidth is the same as that of the attached network. ========================= ======================================= #. In the :guilabel:`Flavor Access` tab, you can control access to the flavor by moving projects from the :guilabel:`All Projects` column to the :guilabel:`Selected Projects` column. Only projects in the :guilabel:`Selected Projects` column can use the flavor. If there are no projects in the right column, all projects can use the flavor. #. Click :guilabel:`Create Flavor`. Update flavors ~~~~~~~~~~~~~~ #. Log in to the Dashboard and select the :guilabel:`admin` project from the drop-down list. #. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click the :guilabel:`Flavors` category. #. Select the flavor that you want to edit. Click :guilabel:`Edit Flavor`. #. In the :guilabel:`Edit Flavor` window, you can change the flavor name, VCPUs, RAM, root disk, ephemeral disk, and swap disk values. #. Click :guilabel:`Save`. Update Metadata ~~~~~~~~~~~~~~~ #. Log in to the Dashboard and select the :guilabel:`admin` project from the drop-down list. #. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click the :guilabel:`Flavors` category. #. Select the flavor that you want to update. In the drop-down list, click :guilabel:`Update Metadata` or click :guilabel:`No` or :guilabel:`Yes` in the :guilabel:`Metadata` column. #. In the :guilabel:`Update Flavor Metadata` window, you can customize some metadata keys, then add it to this flavor and set them values. #. Click :guilabel:`Save`. **Optional metadata keys** +-------------------------------+-------------------------------+ | | quota:cpu_shares | | +-------------------------------+ | **CPU limits** | quota:cpu_period | | +-------------------------------+ | | quota:cpu_limit | | +-------------------------------+ | | quota:cpu_reservation | | +-------------------------------+ | | quota:cpu_quota | +-------------------------------+-------------------------------+ | | quota:disk_read_bytes_sec | | +-------------------------------+ | **Disk tuning** | quota:disk_read_iops_sec | | +-------------------------------+ | | quota:disk_write_bytes_sec | | +-------------------------------+ | | quota:disk_write_iops_sec | | +-------------------------------+ | | quota:disk_total_bytes_sec | | +-------------------------------+ | | quota:disk_total_iops_sec | +-------------------------------+-------------------------------+ | | quota:vif_inbound_average | | +-------------------------------+ | **Bandwidth I/O** | quota:vif_inbound_burst | | +-------------------------------+ | | quota:vif_inbound_peak | | +-------------------------------+ | | quota:vif_outbound_average | | +-------------------------------+ | | quota:vif_outbound_burst | | +-------------------------------+ | | quota:vif_outbound_peak | +-------------------------------+-------------------------------+ | **Watchdog behavior** | hw:watchdog_action | +-------------------------------+-------------------------------+ | | hw_rng:allowed | | +-------------------------------+ | **Random-number generator** | hw_rng:rate_bytes | | +-------------------------------+ | | hw_rng:rate_period | +-------------------------------+-------------------------------+ For information about supporting metadata keys, see the the Compute service documentation. Delete flavors ~~~~~~~~~~~~~~ #. Log in to the Dashboard and select the :guilabel:`admin` project from the drop-down list. #. In the :guilabel:`Admin` tab, open the :guilabel:`System` tab and click the :guilabel:`Flavors` category. #. Select the flavors that you want to delete. #. Click :guilabel:`Delete Flavors`. #. In the :guilabel:`Confirm Delete Flavors` window, click :guilabel:`Delete Flavors` to confirm the deletion. You cannot undo this action.