vSphere
Introduction to vSphere
Three important points
vSphere is vCenter machine virtualization
NSX Network Virtualization
Virtual SAN Storage Virtualization
Products and Technologies
ESXI traditional concept of hardware direct installation system, one hardware server installs one system, and ESXI product, after installing ESXI on the hardware, manages hardware allocation resources through ESXI, and then installs multiple systems
vCenter Update Manager is based on vCenter update management
Centralized management of all ESXI hosts in vCenter Server
vSphere Client and WebClient When users access vcenter with a browser, WebClient provides services and vSphere client is responsible for linking esxi
vRelalize Orchestrator builds automated processes to automate various vCenter services
vSMP (Multi-Virtual CPU)
DRS (Balanced Utilization of Storage Resources)
Storage and Network IO control (similar to QOS) the QOS of network storage and network in the entire virtualized environment
vSphere Stroage APIs For Data Protection（VADP）
Support file-level backup and recovery, support incremental and complete backup
VSAN is a new software-defined storage layer, which can logically form a complete storage space VSAN for all ESXI host storages
A file may be stored separately on ESXI host A and host B during storage
vSphere Replication
Users can copy virtual machines from one vSphere environment to another vSphere environment.
Flash Read Cache
Flash memory read caching technology makes the vSphere environment better identify and support SSDs and improve the usage of SSDs (expand the upper limit of memory, use SSDs as memory. Note that only SSDs can be used)
Features only supported by vCenter
VM template
Role-based access controls
finer granularity control
vMontion Migration Migration between virtual machines within a group
Dynamic resource allocation
HA (cold standby)
FT fault tolerance (hot standby)
EVC (Enhanced vMotion Compatibility)
Host Profiles
distributed switch
IO control of storage network (qos)
Storage Dynamic Resource Control
Authorization for vsphere
Licensing by Physical Server Processor
Unlimited number of virtual machines
Unlimited physical resources
Example: The user has two dual CPUs (each with 6 cores) Each CPU needs one license, and the user needs to purchase 4 licenses
The specific parameters of each version can be downloaded from the official website
Introduction to vCenter
Central management tool
Works like a proxy
central integration point
Many advanced features of vSphere must be done in a vCenter environment
Windows version and Linux version
Two installation methods of vCenter
Complex application deployment on windows server
VMware-VIMsetup-all-6.5
A linux version of the virtual application, providing quick and easy deployment, built-in SUSE linux is a vcenter application, this is what we call
VCSAVMware-VCSA-ALL-6.5
The underlying services provided by vCenter
Centralized user authentication
web-based client server (web version client access server)
Inventory system (catalog service, integrated management of ESXI)
Extensible framework (extensible framework, mainly extending OpenStack)
The above underlying services are not core servers, but are indispensable
Select vCenter
application on windows server
VMware-VIMsetup-all-6.5
The linux version of the virtual application provides fast and simple deployment, requires a springboard, and has built-in SUSE linux which is a center application, which is what we call it
VCSAVMware-VCSA-ALL-6.5
The difference between the two vCenters
Database (SQL for Windows, Oracle for Linux)
Windows supports heartbeat for HA between vCenters, but Linux does not.
VCSA integrates DCHP, TFTP, Syslog, etc., but can only run in a virtual machine.
Design vCenter for high availability Different components can be deployed centrally or distributed using different technologies
SSO components: HA Cluster, Multisite two protection methods
Inventory Service component: HA-enable vSphere cluster mechanism can be used
Protecting vCenter Server: Windows uses Heartbeat; Linux can only be reinstalled
vCenter Database: DB tools or component Database Cluster
Install vCenter (linux version, springboard win7) Usually, we install vCenter on an ESXI host through a windows, the following are the specific installation steps for the linux version
Hang the ISO image to the springboard
Start the springboard, open the CD-ROM drive and copy all files locally
Install vCenter Go to the vcsa-ui-installer folder, select the win32 folder, and run the installer file
The first stage
Introduction
License agreement, accept it
Select the deployment type, multiple distributed deployment of components or embedded deployment. Under normal circumstances, we deploy on one server, and you can choose embedded deployment.
Fill in here to install vCenter on the ESXI server, fill in the server address and username and password here
Fill in the name and management password of the vCenter virtual host below. This username and password are the system root password.
Choose the size based on your needs and the license you purchased. Note the server resources required for each type.
Choose a storage location.
Configure vCenter networking
Once complete the next step is to aggregate the first stage configuration. No problem select finish and start installation
The installation is complete, it will take about 15-20 minutes for the installation to be too long
Then start the second installation configuration
Configure the device including NTP service, you can fill in the official ntp
Then configure sso, sso is the authentication mechanism, which is the authentication method that users need to log in during web management. The form is username@domain name, and the site name is arbitrary. Web management can also use the server's underlying root login.
Step 4 can be left blank to view the configuration in the next step, and click Finish to start the installation.
until the installation is complete
At this point, vCenter has been installed, log in to the ESXI server installed in vCenter, and you can see that a virtual machine is automatically added.
The above is an introduction to the installation method, the address is a temporary address, the actual introduction of my environment
Log in to the vCenter server through a browser, and you can use the sso account and domain name created during installation to log in in the form of administrator@sso domain name
After login, the interface is as follows
