Resource overview

Describes resource types in KSV.

Resources are entity objects required for running workloads in KubeSphere Virtualization (KSV) clusters. Each time you perform an operation to create an object, the corresponding resources are generated. This includes nodes, VMs, and networks. In KSV, resources are categorized into two types: physical resources and virtual resources. Physical resources are infrastructure devices, such as server nodes, physical networks, and storage devices. Virtual resources exist at the logical level. These resources are easy to use and can be obtained by virtualizing physical resources. Virtual resources include virtual private clouds (VPCs), VMs, disks, and snapshots.

This topic describes resource types in KSV.

Physical resources

The following table lists the types of common physical resources in KSV.

Resource type	Description
Physical nodes	Infrastructure servers in KSV. You can create VMs on physical nodes. KSV provides the following node types: Control node: runs in the management plane and manages the workflow in KSV. Worker node: runs business workloads.
Physical CPUs	CPUs that are installed on physical nodes.
CPU cores	Chips on physical CPUs for data processing.
Memory	Memory provided by the memory cards on physical nodes.
Physical disks	Physical disks on storage devices.
Physical subnets	Unit of a physical network. A physical network can be divided into multiple subnets.

Physical nodes

Infrastructure servers in KSV. You can create VMs on physical nodes. KSV provides the following node types:

Control node: runs in the management plane and manages the workflow in KSV.
Worker node: runs business workloads.

Physical CPUs

CPUs that are installed on physical nodes.

CPU cores

Chips on physical CPUs for data processing.

Memory

Memory provided by the memory cards on physical nodes.

Physical disks

Physical disks on storage devices.

Physical subnets

Unit of a physical network. A physical network can be divided into multiple subnets.

Virtual resources

The following table lists the types of common virtual resources in KSV.

Resource type	Description
Projects	Objects that help you manage resources by group. You can assign users to projects and specify their roles in the projects to implement role-based access control.
VMs	Virtual machines that are created on cluster nodes and can run business workloads.
VM templates	Primary copies of VMs. Each template contains the specific configuration of a VM.
Images	Standard delivery format of VMs. The configuration and dependencies of VMs can be encapsulated into images.
Virtual disks	Block-level virtual storage resources for VMs. Each virtual disk exists on its server in the form of a folder.
Elastic IP addresses (EIPs)	Independent public IP addresses that enable Internet access.
VPCs	Private cloud networks. VPCs are logically isolated from each other.
Virtual subnets	CIDR blocks in VPCs.
SSH keys	Key pairs that are generated based on encryption algorithms. Each SSH key contains a pair of public and private keys.
Security groups	Virtual firewalls that are used to control inbound and outbound traffic of associated resources.

Projects

Objects that help you manage resources by group. You can assign users to projects and specify their roles in the projects to implement role-based access control.

VMs

Virtual machines that are created on cluster nodes and can run business workloads.

VM templates

Primary copies of VMs. Each template contains the specific configuration of a VM.

Images

Standard delivery format of VMs. The configuration and dependencies of VMs can be encapsulated into images.

Virtual disks

Block-level virtual storage resources for VMs. Each virtual disk exists on its server in the form of a folder.

Elastic IP addresses (EIPs)

Independent public IP addresses that enable Internet access.

VPCs

Private cloud networks. VPCs are logically isolated from each other.

Virtual subnets

CIDR blocks in VPCs.

SSH keys

Key pairs that are generated based on encryption algorithms. Each SSH key contains a pair of public and private keys.

Security groups

Virtual firewalls that are used to control inbound and outbound traffic of associated resources.