Virtual Machine Server Classic application configuration scheme (i)

Source: Internet
Author: User
Tags virtual environment

I. Introduction to Virtual Hosting

Virtual machine is the software to create a virtual computer hardware system environment, you can be in the current real system environment and virtual creation of one or more hardware system environment and in this virtual environment can install a variety of common operating systems and various software.


Two. Virtual host in the application of the server hardware configuration requirements

Using the benefits of virtual systems to help improve server efficiency and overall system security, in turn, server configuration requirements are also high, a good server performance involves CPU processing speed, memory capacity, hard disk read and write bandwidth and capacity, network port bandwidth. Here is an analysis of each of these aspects:

CPU Processor: Typically a physical computing unit ( core ) in a virtual application system supports the operation of 8 virtual processors with the help of the most advanced Intel Xeon5600 Series processors and AMD Opteron6100 series processors deliver robust performance to virtual hosts, i.e.

NO

Number of server CPUs

Virtual Host

Physical computing Units ( cores )

Maximum number of virtual machines supported

1

Single Quad core Xeon3400

4 Cores

Three

2

Two-way 4 -core Xeon5600

8 Cores

Five

3

Two-way 6 -core Xeon5600

Nuclear

Nine

4

Four-way 8 -core Xeon7500

Nuclear

A

5

Two-way 8 -core Opteron6100

Nuclear

Ten

6

Two- way nuclear Opteron6100

Nuclear

192 A

7

Four- way nuclear Opteron6100

Core

384 A

Taking into account the performance factors in the virtual system software, assuming that each virtual machine system has a single virtual processor, we can run up to 384 virtual machines on a single host.

For example, if we were to run a single host on a 7 win, the host CPU processor had to have at least 200/8=25 Core, which was built on each Win 7 The premise of assigning only one virtual CPU .

If each Win 7 requires 2 CPUs, that requires a virtual processor number 200*2=400, more than a single server to provide the maximum number of virtual processors 384 the upper limit, It is not possible to run all on a single host.

For example, the number of virtual machines that need to be run is 2 virtual CPUsper VM, so the total amount of virtual CPUs required is 16*2=32 , with a minimum of 32/ 8=4 A logical processor, if you are using a quad-core CPU, you need at least 1 quad-core CPUs.

Processor: The larger the cache, the better, especially when the ratio between the virtual processor and the physical processor is high.

2. Memory: Each virtual machine runs its own memory allocation associated with the operating system, typically Linux memory allocation is at least 512M ,windows7 allocation At least 1G of memory, but running these virtual machines, the software itself also takes into account the actual application and its own memory consumption.

NO

Virtual Host Server

Support for maximum virtual systems

Memory required by Windows System

The memory required for Linux Systems

1

4 Cores

Three

32GB

16GB

2

8 Cores

Five

64GB

32GB

3

Nuclear

Nine

96GB

48GB

4

Nuclear

A

256GB

128GB

5

Nuclear

Ten

128GB

64GB

6

Nuclear

192 A

192GB

96GB

7

Core

384 A

384GB

192GB

3. Network: The general server will usually have two network ports, a control, an external access, can also have only one. If the number of virtual hosts, to improve performance, the number of network cards should be increased correspondingly, if the network port for multiple virtual systems to share a network card will have a bandwidth consumption problem. The main thing is to see the role of the virtual machine you are running, if it is a web access, and a large number, it must be exclusive to a network card,FTP service is also the case.

If the network data transfer is large, you can install more than one network card, bind multiple virtual machines on a network card. For example, each virtual machine needs 100Mbps, that set up a virtual system, the virtual host server should need 8 1000Mbps of network cards, each network card binding ten virtual machines.

4. hard Disk System: Hard disk Read and write bandwidth of course, the larger the better, but io read and write always have a bottleneck, and to consider the cost, this is to set the hard disk read and write is asynchronous or synchronous, asynchronous operation will cache the data in memory, this can alleviate the IO read and write pressure. The number of hard drives recommended more than 4 blocks.

Three. Virtual Host configuration scheme

Scenario 1 Small to medium size virtual host application



Model

Xasun VM U12416ti

Configuration

4 -core Xeon 2.4G,16GB,sata500g*2, dual gigabit

Positioning

Supports up to a maximum of three virtual systems

Configuration details

Brands and Models

Number

Unit

Note

Cpu

4 -core Xeon E3430 2.4G

1

Star

Chipset

Intel S3420 Chips

 

Memory

4G ddr3-1333 REG ECC

4

Root

Graphics

Integration

 

Hard disk

SATA Enterprise class

4

Block

Card

Integrated dual Gigabit

System Platform

Xasun IGPLCU114P4

1

Sets

Power

400W EPS

 

 

 

Performance Index

 

 

 

Cpu

384 billion times / sec

Hard disk

IO read/write bandwidth 100mb/s,IOPS / sec

Network Port

Provides 2Gbps IO bandwidth, Ethernet port

Cooling noise

Mute level ( optional )

Upgrade capabilities

 

Cpu

Single-channel Xeon3400 full range

Memory slots

6 , single memory Max 8GB, max capacity 32GB

Hard disk bit

Supports SATA 6 blocks

Network Port

Supports 8Gbps Ethernet Port Maximum

Operating system

 

Support for Windows Server 2003,

Support Redhat,Suse Linux full range

Quote

13500 Yuan

Virtual Machine Server Classic application configuration scheme (i)

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