VMware Introduction

Virtualization Technology:

Virtualization technology integrates various physical resources at the底层. Such as computing, storage, and networking. It creates a layer of isolation between the hardware layer and application layer, allowing multiple logical applications to run on one hardware resource.

VMware primarily focuses on X86 server virtualization.

Virtualization Architecture:

Hosted architecture: VMware Workstation

Bare-metal architecture: VMware vSphere, Citrix XenServer

Common Virtualization Products:

Open source: KVM, Openstack

Commercial: VMware: vSphere server virtualization (computing layer CPU and memory)

Horizon, Thinapp desktop and application virtualization

VSAN storage virtualization

NSX network virtualization

Replication, Site Recovery Manager disaster recovery backup

Citrix: XenServer

Microsoft: Hyper-v

VMware vSphere: Server Virtualization Related Components

• VMware ESXi: VMware server virtualization Hypervisor program (cloud operating system)
• VMware VCenter: Virtualization management component server
• VMware Web Client: Virtualization management component Web Client (B/S)
• VMware Client: Virtualization management component Windows Client (C/S)
• VMware Update Management: Virtualization platform upgrade management component
• VMware Data Protection (VDP): Virtual machine backup
• VMware Distributed Power Management (DPM): Distributed power management
• vMotion, HA, FT, DRS and other component functions

Openstack Introduction

Openstack is a cloud platform management project, not a single software. This project combines several major components to complete specific tasks. Openstack is an open source project designed to provide software for the construction and management of public and private clouds.

Core Services:

• Identity Service: Keystone - involves users, groups, roles, projects, tokens
• Image Service: Glance - supports multiple formats (ISO, AMI, RAW, VHD, VMDK, VDI)
• Compute Service: Nova - manages the entire lifecycle of virtual machines. Such as power on, power off, pause, resize, migrate, restart, delete
• Network Service: Neutron - network subnets, routing, DHCP, DNS, LB, VLAN, Truck
• Block Storage Service: Cinder - create, delete, mount, unmount volumes
• Object Storage Service: Swift - object storage, volume backup
• UI Interface: Horizon - web page. Launch instances, assign IPs, access control, etc.
• Telemetry Service: Ceilometer - event collection, billing and monitoring
• Orchestration Service: Heat - template definition resources
• Database Service: Mariadb, Mongodb, etc.

Comparison

Deployment

• VMware Deployment Simple Screenshots

VMware vSphere server virtualization installation

ESXI host client installation

Openstack (supports self-built or one-click script installation)

Self-built: KVM virtualization, time service, DNS service, database service

One-click script:

Can create virtual machines through web page

Features

Price

vSphere is licensed by processor quantity

View is charged by concurrent user quantity

https://store.vmware.com/store/vmware/zh_CN/home

Openstack is an open source product, free of charge

Summary

For me personally, in terms of implementation and deployment, I prefer VMware. Because the deployment environment and installation process are relatively simple, the configuration process is more user-friendly, and the interface is more mature. In terms of features, there is still a gap between OpenStack and VMware, but OpenStack still has advantages because VMware is very expensive, while OpenStack is free and open source.