Windows Azure Virtual Machine ($) Virtual Machine cost Analysis

In Windows Azure VM, the billing model is related to several factors:

Cost 1:VM Type and VM Size

Please refer to the specific billing mode here

http://www.windowsazure.com/en-us/pricing/details/virtual-machines/#service-windows

We know that when we create a Windows Azure VM, we can select the type of VM. This is related to the operating system, installed applications:

A) Windows

b) Linux

c) SQL Server

d) BizTalk Server

We can also select the size of the VM, the configuration of this hardware

A) Extra Small (A0) (Shared cpu/768mb RAM)

b) Small (A1) (1 Core CPU/1.75GB RAM)

c) Medium (A2) (2 Core CPU/3.5GB RAM)

d) Large (A3) (4 Core CPU/7GB RAM)

e) Extra Large (A4) (8 Core CPU/14GB RAM)

Some users need more memory, so he can select the new VM Size:

d) A6 (4 Core CPU/28GB RAM)

e) A7 (8 Core CPU/56GB RAM)

The billing principle is as follows:

1 in the same VM type scenario, the higher the VM size configuration, the more expensive the cost.

For example, the VM with Windows Server 2012 is also selected to set VM size to A7 (8CORE/56GB), which is certainly more expensive than VM size A1 (1CPU/1.75GB). The reason is easy to understand, because the hardware configuration of A7 is higher than A1, and the performance is powerful.

2 in the same VM size case, according to the VM type different charge the corresponding fee

For example, if VM size is A2, the unit price per hour for Windows Server 2012 that contains only the operating system is USD 0.18; but if we choose SQL Server SP1 Enterprise on Windows Server 2 012, the unit price per hour is USD 2.28. The price is more than 10 times times more expensive. This is because Windows Azure also requires an additional license charge for SQL Server.

Weigh:

1 when you have purchased SQL Server license, I recommend that you select a VM Type that contains only the operating system, and then install SQL Server 2012 through Remote Desktop Connection in this VM. This does not need to bear the VM's high unit price. (Note: This may not get Microsoft Technical support)

2 When you have not yet purchased the original SQL Server license, I recommend that you weigh the costs yourself, such as the time you use the Windows Azure VM, and compare the unit price for the purchase of SQL Server license. Find the best solution for you.

3 If you want Microsoft's 100% technical support, I recommend that you select the corresponding Azure VM when creating the Azure VM, such as SQL Server SP1 Enterprise on Windows Server 2012

Cost 2. Azure Storage

Fees please refer to: http://www.windowsazure.com/en-us/pricing/details/storage/

There are 2 of them, VM OS and VM Disk, respectively.

VM OS

We know that the Windows Azure VM is stored in the VHD of the Azure Blob storage, which enables the VM to be persisted. By default, when we create a new Azure VM, a 127GB VHD is created to be saved in storage, which is used to hold the VM OS, i.e. the Azure VM has the largest C disk size of 127GB. So the C disk of the Azure VM is very valuable.

However, Azure storage is billed for actual storage. In general, the actual size of server 2012 that contains only the operating system does not exceed 40GB. In other words, although the VM has requested a 127GB VHD, it actually uses only 40GB. Azure Storage will only charge a 40GB fee.

VM Disk

Previously, the VM OS is a VHD that contains the operating system, with a maximum of 127GB. If we need more disks, we can only add more disk space through attach disks.

Related information: You can refer to http://www.cnblogs.com/threestone/archive/2012/11/23/2784291.html

Attach disk is also charged according to the actual storage. For example, I attach disk for 1TB, is actually to this 1TB copy 1GB content. Azure will actually charge only a 1GB fee.

Cost 3:data Transfers

Data transfers is divided into two types: inbound and outbound data transfer

1 Inbound: That is, the data from the client upload to Windows Azure DataCenter, such as a cell phone photo to save the application, you need to upload photos to the Azure DataCenter save. This part of the data is free.

2) Outbound data. That is, the data is downloaded from the data center to the client. For example, the data stored in Azure Datacenter is synchronized to a local laptop, which is charged for a fee. Please refer to http://www.windowsazure.com/zh-cn/pricing/details/data-transfers/here

Cost 4: Transaction

There is also a charge for the reading and writing of Azure storage, which accounts for little of the cost. $0.01 per 100,000 transactions

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