Managing Flavors

In Metacloud, a flavor defines the compute, memory, and storage capacity of a virtual server, also known as an instance. As an administrator, you can create, edit, and delete flavors.

The following table lists the default flavors:

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

Creating Flavors

  1. Log in to the Dashboard.
  2. Choose a project from the drop-down list.
  3. In the Admin tab, open the System tab and click the Flavors category.
  4. Click Create Flavor.
  5. In the Create Flavor window, enter or select the parameters for the flavor in the Flavor Information tab.

    **Dashboard — Create Flavor**

Name—Enter the flavor name.
ID —Unique a ID (integer or UUID) for the new flavor. If specifying ‘auto’ 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 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.

  1. In the Flavor Access tab, you can control access to the flavor by moving projects from the All Projects column to the Selected Projects column.

    Only projects in the Selected Projects column can use the flavor. If there are no projects in the right column, all projects can use the flavor.

  2. Click Create Flavor.

Updating Flavors

  1. Log in to the Dashboard.
  2. Choose a project from the drop-down list.
  3. In the Admin tab, open the System tab and click the Flavors category.
  4. Select the flavor that you want to edit. Click Edit Flavor.
  5. In the Edit Flavor window, you can change the flavor name, VCPUs, RAM, root disk, ephemeral disk, and swap disk values.
  6. Click Save.

Updating Metadata

  1. Log in to the Dashboard.
  2. Choose a project from the drop-down list.
  3. In the Admin tab, open the System tab and click the Flavors category.
  4. Select the flavor that you want to update. In the drop-down list, click Update Metadata or click No or Yes in the Metadata column.
  5. In the Update Flavor Metadata window, you can customize some metadata keys, then add it to this flavor and set them values.
  6. Click Save.

    Optional metadata keys

CPU limits quota:cpu_shares
  quota:cpu_period
  quota:cpu_limit
  quota:cpu_reservation
  quota:cpu_quota
Disk tuning quota:disk_read_bytes_sec
  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
Bandwidth I/O quota:vif_inbound_average
  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
Random-number generator hw_rng:allowed
  hw_rng:rate_bytes
  hw_rng:rate_period

Deleting Flavors

  1. Log in to the Dashboard.
  2. Choose a project from the drop-down list.
  3. In the Admin tab, open the System tab and click the Flavors category.
  4. Select the flavors that you want to delete.
  5. Click Delete Flavors.
  6. In the Confirm Delete Flavors window, click Delete Flavors to confirm the deletion. You cannot undo this action.