[Windows Azure] Virtual Machine and Cloud Service Sizes for Windows Azure

 

Virtual machine
size
CPU
cores
Memory OS disk space–
cloud services
OS disk space–
virtual machines
Max. data disks
(1 TB each)
Max. IOPS
(500 per disk)

ExtraSmall

Shared

768 MB

19 GB

20 GB

1

1x500

Small

1

1.75 GB

224 GB

70 GB

2

2x500

Medium

2

3.5 GB

489 GB

135 GB

4

4x500

Large

4

7 GB

999 GB

285 GB

8

8x500

ExtraLarge

8

14 GB

2,039 GB

605 GB

16

16x500

A6

4

28 GB

999 GB

285 GB

8

8x500

A7

8

56 GB

2,039 GB

605 GB

16

16x500

  • Small is the smallest size recommended for production workloads.

  • Select a virtual machine with 4 or 8 CPU Cores when using SQL Server Enterprise Edition.

  • The ExtraSmall virtual machine size is only available by using Windows Azure SDK version 1.3 or later.

  • Cloud service role instances (Web Roles and Worker Roles) require more disk space than a virtual machine due to system requirements. The system files reserve 4 GB of space for the Windows pagefile, and 2 GB of space for the Windows dumpfile.

  • Some of the physical hosts in Windows Azure data centers may not support larger virtual machine sizes, such as A6 and A7. As a result, you may see the error message Failed to configure virtual machine <machine name> or Failed to create virtual machine <machine name> when resizing an existing virtual machine to a new size, creating a new virtual machine in a virtual network created before April 16, 2013, or adding a new virtual machine to an existing cloud service. See the topic Error: “Failed to configure virtual machine” on the support forum for a list of workarounds for each deployment scenario.

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