FusionCompute

Overview

FusionCompute is a fully Huawei in-house developed computing virtualization software. FusionCompute provides the tuned high-performance and high reliabilities in VM instance provisioning, clustered resource pool management, and intelligent HA/FT scheduling.

Features

The overview of it can be illustrated as below:

Virtual Computing

• Server Virtualization

Bare Metal Architecture
CPU Virtualization
Memory Virtualization
Graphic Processing Unit (GPU) Passthrough
iNIC Passthrough
USB Passthrough

• VM Resource Management

VM life cycle management
VM template
CPU QoS
Memory QoS
Dynamic resource overcommitment for VMs
VM statistics

• Dynamic VM Resource Adjustment

Attaching virtual disks online/offline
Adding or deleting NICs offline
Adjusting the memory size online/offline
Adjusting the number of vCPUs online/offline

• Distributed Resource Scheduling and Power Management

Load balancing
Dynamic scheduling performed for energy saving

• VM Live Migration
  

Virtual Storage

• Virtual Image Management System
  
• Virtual Storage Management

Virtual image management system
Network file system

• Thin-Provisioning Virtual Storage

Storage device independent
Capacity monitoring
Disk space reclaiming

• VM Snapshot
  
• Storage Live Migration
  

Virtual Network

• Virtual NIC

Bandwidth control based on a network plane
Bandwidth control based on a virtual NIC
Bandwidth control based on a port group member port

• Elastic Virtual Switch
  
• Network I/O Control
  
• DVS
  

Topology

The figure below shows the logical nodes in the FusionCompute.

Modules

• VRM: Virtual Resource Management, core controller nodes of FusionCompute.

- Manages block storage resources in the cluster.

- Allocates private IP addresses for virtual machines (VMs) by using Dynamic Host Configuration Protocol (DHCP). 

- Manages nodes in the computing cluster and maps physical computing resources to virtual computing resources. 

- Manages network resources, such as IP addresses, virtual local area network (VLAN) numbers, security groups, and DHCP severs in the cluster and allocates private IP addresses to non-VPC VMs. 

- Manages the life cycle of VMs in the cluster and distributes and migrates VMs across CNAs. 

- Dynamically adjusts resources in the cluster.

- Implements centralized management of virtual resources and user data and provides elastic computing, storage, and IP address services.

- Allows O&M engineers to remotely access the FusionCompute through a web interface to perform resource monitoring and management and view resource statistics reports.

• CNA: Computing Node Agent, deploys on each compute nodes.

- Implements the virtual computing function. 

- Manages the VMs running on the CNA.

- Manages the computing, storage, and network resources of the CNA.

• IMGS: Image Storage.
  

• UVP: The hypervisor of Huawei FusionCompute based on SuSE.
  

How FusionCompute works with Nova?

The basic architecture can be shown as below:

Note

- The package of nova-compute is deployed on the Huawei-CNA nodes.
- Nova-scheduler will select the suitable compute-hosts based on the reported resource as usual.
- Nova won't communicate with Huawei-VRM directly, the Huawei-FC Driver will be the bridge between them.

Example

Let's give an example for creating an instance:

1. Nova API receives a request for creating.
2. Nova Scheduler chooses a suitable host based on configure as usual.
3. Nova Compute receives the request, gets IP/mac info from neutron, and calls the spawn() on Huawei-FC Driver.
4. The Huawei-FC Driver sends the request to Huawei-VRM from the CNA node.
5. The Huawei-VRM choose the last node, and starts to create instance.

Deployment & Configure

Drafting