VCP5 learning guide Chinese translation Note 1

I recently learned VCP5, a textbook for English translation. You are welcome to point out the shortcomings.

The new vsphere5 function is based on vsphere4.1 and is an industry leader in cloud computing. There are a large number of new features for different levels of products, and vcp4 and vcp5 have many features that cannot be described. In this chapter, we review the new features of vsphere.

This section briefly introduces new features. Many features will be detailed in the following sections.

ESX retirement

Vsphere will no longer support ESX. After that, ESXi will become the virtualization layer. Note: hypervisor ). Users who only use ESX and do not use ESXi pay attention to changes in the ServiceConsole. This brings operation and management challenges, but also enhances security, reliability, and management. ESXi5 has a menu-driven User Interface DCUI) and ESXi shell. ESXishell is similar to ESX service console.

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The ultimate goal is to remove the concept of managing hosts on the service console. Previously, removing the service console improves security, availability, and host management. In your virtual architecture, the host is considered as a hardware with a license plug-in. Removing the service console will help with this idea. If you haven't done this before, take a look at powerCLI, vCLI, and vMA. You will notice that these tools provide equal functions, but the syntax is quite different. If you are still dependent on the service console to operate and manage tasks and are not familiar with vCLI, powerCLI, and vMA, you should take a look. In ESXi, you need to consider SAN, a large number of software, backup agents and software, hardware monitoring, UPS software, ESX scripts and functions that can work or replace.

VCB Retirement

Vmware unified backup vmware‑lidated backup, VCB) is no longer supported in vsphere5. Vmware data recb instead of VCB. If you are using a third-party backup application, you need to check whether the supplier supports data protection of vmware vstorage APIs.

VMI paravirtualization Retirement

Vsphere5 does not support virtual machine interfaces (virtualmachine interface and VMI) to access the semi-virtualization interface (paravritualization interface) of the operating system ). This is because the hardware acceleration of Inter and AMD is better than that of VMI. Virtual machines can be migrated to vsphere5, KB 1013842 using virtualization.

Vmware GUI toolbox Retirement

Vsphere5 is finally released to support the vmwaretools graphical user interface, vmware toolbox. Command Line updates and support. The same features are supported in the vmware tools control panel. The names of toolboxes depend on different operating systems:

Windows: VMwareToolboxCmd.exe

Mac:./vmware-tools-cli

Linux: vmware-toolbox-cmd

Example:

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Windows2000Custom support for customers' Operating Systems

The latest version of vsphere5 supports win2000 customization, and the new windowns also supports customization.

Creating VMCI Sockets is not supported

Communication between vsphere5 virtual machines and virtual machines is no longer supported. The latest version will remove this function, but communication between the host and the client is also supported.

Requirement of LAHF and sahf cpu instruction sets

For ESXi 5 hosts, only CPUs that containthe Load Register AH From Flags (LAHF)

And Store AH Register into Flags (SAHF) CPUinstruction sets are supported. The ESXi

Installer will check the compatibility ofthe host CPU during an installation or upgrade. if your host hardware is notcompatible, a purple screen will appear with an incompatibility informationmessage. the install or upgrade cannot continue beyond this point. always usethe VMware HCL (www.vmware.com/go/hcl) to verify host compatibility with ESXi 5 before you begin the installation.

Inter SMT-Related CPU scheduler enhancementsIntel SMT-related scheduling enhancements

Inter multithreading simultaneousmultithreading, SMT) architecture in exposing two hardware in a single processing core.

Using two hardware to Improve the Performance of applications by 10-30% depends on the workload. ESXi5cpu scheduling policy uses this architecture to ensure and improve the mission-criticalapplication of key applications ).

Notable configuration maximums changesNote some changes to the maximum value.

Very important.

VCPUs per VM changes from 8 to 32

RAM allocation per VM changes from 255 GB to1TB

VM swap file size changes from 255 GB to 1 TB

VMs per host changes from 320 to 512

VCPUs per host changes from 512 to 2048

RAM per host changes from 1 TB to 2 TB

NFS mounts per host changes from 64 to 256

LUN size changes from 2 TB minus 512 bytesto 64 TB

Port groups per vSwitch changes from 512 to256

Maximum concurrent host HA failover changesfrom 4 to 32

Resource pools per cluster changes from 512to 1,600

Resource pools per host changes from 4, 096to 1,600

Number of hosts per datacenter changes from400 to 500

ESXi firewall and management networks ESXiFirewall and Management Network

Vsphere5 removes the serviceconsole. vmware now provides a firewall to protect the ESXi management interface. The firewall provides modules at the network adapter level through vmkernel. Main functions:

Service-oriented and stateless)

Restrict access to services based on ip addresses and subnets

Use the vsphere client or the new"Esxcli"

Supports host profiles)

Eliminate the use of iptables

Allows you to create new services and firewall roles. You can define the Firewall Service through the XML description file. You can manually create an XML file and use the "esxcli refresh" command to activate the service.

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