Create or apply for a cloud host

Parameter

Description

Creation Method

Specify the cloud host creation method.

• Create New—Create a new cloud host.

• Use Template—Use a cloud host template to create the host. For more information about creating cloud host templates, see "Cloud host template."

Organization

Specify the organization of the cloud host. You can select any organization for the system administrator, and you can select only the current organization for an organization administrator and common user to which they belong.

Owner

Specify the owner of the cloud host. This field is available for only the system administrator or organization administrator. The owner must be an existing user in the system. For a system administrator, you can select the system administrator or any user. For an organization administrator, you can select the organization administrator or any user in this organization (excluding the sub organizations). For a common user, you can select only the user.

AZ

Select the AZ that provides computing resources to the cloud host. You can specify a physical host or affinity group for the cloud host by specifying the resource allocation mode.

Flavor

Select the cloud host type and its flavor. Cloud host types include general type, vGPU type, and GPU type.

NIC Multi-Queue

Select whether to enable NIC multi-queue. This feature enables you to assign NIC interruptions on cloud hosts to different CPUs for processing to increase the network PPS and bandwidth performance. This field is available only when the feature is enabled for cloud hosts.

Huge Pages

Set the huge pages to 2 MB or 1 GB if huge pages are required by the cloud host to run applications or services.

You can leave this field blank to disable huge pages. The huge page parameters are available after you enable HugePage as described in "Configure cloud host settings." For the huge pages settings for the cloud host to take effect, you need to enable the huge pages feature on the CAS management platform.

Number of NUMA Nodes

Specify the number of NUMA nodes bound to the cloud host, an integer in the range of 1 to 10. You can also leave this field blank. This parameter is available when the Huge Pages field is not blank.

Make sure the CPU count and memory capacity in the VM flavor settings can be divided by the number of NUMA nodes. The number of NUMA nodes cannot exceed the number of available NUMA nodes of CVKNODE.

For example, if the cloud host flavor settings include four CPUs and 10-GB memory, and the number of NUMA nodes is 2, the CPU and memory will be evenly shared by the two NUMA nodes. Each NUMA node can obtain two CPUs and 5-GB memory.

CPU Operating Mode

Select the CPU operating mode:

• Compatible: The virtualization kernel software simulates the general standard virtual CPU. This operating mode features high compatibility, but it does not provide the optimal performance for the host operating system.

• Straight-Through: Transparently transmit the server host CPU model and most functions to the cloud host. This operating mode provides the optimal performance, but it features low migration compatibility. Migration might not be allowed event between CPUs of different generations from the same vendor. If the CPU for the compute node server used to allocate resources to the cloud host adopts the AArch64 (ARM) architecture, you must select the passthrough mode.

• Host Matching: The virtualization kernel software simulates the CPU model closest to the physical server CPU. This operating mode can obtain the host with CPU performance closest to the Flags parameter setting. It features low migration compatibility the automatically obtained models are different on servers with different CPUs.

Image

Specify an image. Options include Public Image, Private Image (available to non-system administrators) and Create from Cloud Host Image.

Select shared image to use the private image shared by another user.

Cloud host created from an image has the same data and state as the source cloud host at the time the host image was taken.

System Disk

Normal Creation

Enable the system to automatically create the system disk upon cloud host creation. By selecting the storage type, you can specify the storage pool where the cloud host's storage volumes reside. For more information, see "Cloud host storage."

Created with Cloud Disk

Create a new cloud disk as the system disk. By selecting the storage type, you can specify the storage pool where the cloud disk resides. For more information, see cloud disks in the cloud services guide. The system disk of the VMware cloud host does not support this creation method.

Select Existing System Disk

Select an existing cloud disk as the system disk. The system disk of the VMware cloud host does not support this creation method.

Data Disk

Select a data disk for the cloud host.

After a cloud host is destroyed, its system disk created with the Normal Creation method is cleared but data in the data disk retains. Data disks are supported by the cloud disk service. To use a data disk, you can assign a cloud disk to the cloud host at host creation, or attach a cloud disk to the cloud host after host creation.

For more information about cloud disk attaching, see "Attach cloud disks to a cloud host." You can also create a new cloud disk on this page. If the number of newly created VMs is 1, you can create 12 cloud disks. The total number of newly created cloud disks and the existing cloud disks cannot exceed 12. If the number of newly created VMs more than 1, you can only create new cloud disks, and make sure the maximum number of data disks per VM is 1.

Swap (MB)

Specify the swap partition size in MB for the cloud host. This field is available only when you enable the swap partition configuration on the Advanced Settings > Cloud Host Settings page. If the newly created cloud host requires configuring a swap partition, specify a value of greater than or equal to 1 for this parameter. Without this setting, no swap partition is configured for the cloud host. Make sure the swap partition size does not exceed the remaining storage capacity of the CVK host.

Cloud Host Quantity

Specify the number of cloud hosts to create. You can create several cloud hosts with the same configurations in bulk. In addition, you can start up the cloud hosts upon creation.

Network

Specify a network for the cloud host. You can select a legacy network or VPC as needed.

Each network allows configuring an IPv4 address and an IPv6 address. The IPv6 address can be either manually specified or automatically generated. When only an IPv4 address is configured, the IPv6 address can be automatically generated based on link-local address prefix FE80::/10 and the link-layer address of the interface. The automatically generated IPv6 address is a link-local address that is used for communicating with only the cloud hosts on the local network. The excluded IP and QoS policy settings are optional. For more information, see "Configure excluded IPs" and "Manage QoS policies." When you specify the private network IP addresses upon batch creating cloud hosts, make sure a number of contiguous n IP addresses from the start IP address are available. If you do not specify the IP address, the system automatically assigns the IP addresses. To connect to VMware cloud hosts, make sure the created network (port group) in the system has the unique name in the current cluster. If the name is not unique, the cloud host creation will fail.

Security Group

Specify a security group. If you do not specify any security group, the cloud host belongs to the default security group by default.

Login Credential

Specify the login credential.

• Generate—Use a system-generated password. After the cloud host creation, you can access the detailed information page of the cloud host and click the  icon in the Basic Info area to view the generated password.

• Set—Set a password.

• Key—Enable key authentication. This feature is available only for Linux cloud hosts. If you enable key authentication, select a key pair from the SSH Key field.

• Image Default Password—Use the image's default password. The default password of an image is the password used to log in to the cloud host to create the image.

Tenancy

Specify the tenancy of the cloud host. After the creation, you can view the start time, end time, and action upon expiration for the cloud host on the detailed information page of the cloud host. For more information, see "View detailed cloud host information."

Reminder

Specify the time when the system notifies the host owner of host expiration in advance. For example, if you specify the time to 1 day, the system sends an email to the owner one day before the host expiration.

Action

Specify the action to take on the cloud OS after its tenancy expires.

• Mail Notification—Enable the system to send an email notification to the owner. The owner can still use the cloud host.

• Autoshutdown—Shut down the cloud host. The host cannot be restarted unless its tenancy is extended.

• Autodestroy—Destroy the cloud host. Destroyed cloud hosts cannot be restored. If you set the action to Destroy, set the notification time for expiration and remind the owner to extend the tenancy in time.