Release: Amazon EC2 on 2009-12-02
New Features
| Feature | Description |
|---|---|
| Elastic AMIs | Amazon EC2 AMIs can now be backed by Amazon EBS, which are easier to create than AMIs that use instance stores as root devices, launch faster, support sizes up to 1 TiB, and use persistent storage. For more information about AMIs, go to the Amazon Elastic Compute Cloud Developer Guide or Amazon Elastic Compute Cloud User Guide. |
| Amazon EC2 in Northern California | Amazon EC2 is now available in Northern California. For more information, go to the Amazon Elastic Compute Cloud Detail Page. |
Known Issues
| Issue | Description |
|---|---|
| Query Version of ModifyInstanceAttribute | The Query API ModifyInstanceAttribute request does not allow the block-device-mappings to be modified and the user-data attribute cannot be modified if it already contains data. |
| Paid AMIs Backed by Amazon EBS | AMIs backed by Amazon EBS are not currently supported by Amazon DevPay. |
| Windows Reserved Instances | Reserved Instances are not currently available for Windows. |
| Windows AMI launch times | Windows AMIs take longer to launch than Linux/UNIX instances due to larger AMI sizes and multiple reboots. |
| Windows AMI sizes | Installing software on Windows AMIs can cause them to become large and easily reach the 10 GB limit. Before bundling, check the size of the C:\ volume. |
| Limitation on drive mapping | There is currently no support for volume attachment to devices beyond /dev/sdp on instances running Linux/UNIX and xvdp on instances running Windows. |
| Security group limitation | AuthorizeSecurityGroupIngress does not allow port ranges for group grants when using the command-line tools or the Query API. This is only supported through the SOAP API. |
| Instance limit | New users are limited to a maximum of 20 concurrent instances, but many of our customers use hundreds or thousands of instances. If you need a higher limit, go to http://www.amazon.com/gp/html-forms-controller/ec2-request. |
