Windows Azure, Increase Cores count
Windows Azure Subscription comes with core limit of 20. Many times this becomes a limitation. Recently in one of our project we were looking for deploying multiple large instances of 5 hosted services we have deployed in our azure subscription. Using default quota of 20 we can not achieve this.
Issue
Default soft limit for Windows Azure Subscription is 20 cores. So using this limit you can build maximum of 10 medium instance or 5 large instances of any hosted services. To better understand the relation between Core number and Instance Size you may refer following table (referred from How to Configure Virtual Machine Sizes)
|
Virtual Machine Size |
CPU Cores |
Memory |
Disk Space for Local Storage Resources in Web and Worker Roles |
Disk Space for Local Storage Resources in a VM Role |
Allocated Bandwidth (Mbps) |
|
|
ExtraSmall |
Shared |
768 MB |
19,480 MB (6,144 MB is reserved for system files) |
20 GB |
5 |
|
|
Small |
1 |
1.75 GB |
229,400 MB (6,144 MB is reserved for system files) |
165 GB |
100 |
|
|
Medium |
2 |
3.5 GB |
500,760 MB (6,144 MB is reserved for system files) |
340 GB |
200 |
|
|
Large |
4 |
7 GB |
1,023,000 MB (6,144 MB is reserved for system files) |
850 GB |
400 |
|
|
ExtraLarge |
8 |
14 GB |
2,087,960 MB (6,144 MB is reserved for system files) |
1890 GB |
800 |
|
Resolution
As I said earlier this is a soft limit derived from average usage prospective. You can raise a quota increase ticket with Microsoft Support here. In my case support was really good and I got a call back and quota increased in couple of hours. Good point is the quota increase doesn’t impact billing and the user is charged based on usage and not number of Cores assigned.
Hope this information will be helpful. Please share your feedback and rate this article.