This topic describes the supported editions of Message Queue for Apache Kafka instances to help you choose an appropriate instance edition.
The following table describes each instance edition of Message Queue for Apache Kafka.
|Item||Standard Edition (High Write)||Professional Edition (High Write)||Professional Edition (High Read)|
|Versions||Versions 0.10.x to 2.x are supported.||Versions 0.10.x to 2.x are supported.|
|Ratio of maximum read traffic to maximum write traffic||1:1||1:1||5:1|
|Instance type||Virtual instance where specific resources are shared||Dedicated instance|
|Message retention period||Up to seven days||Customizable|
|Disaster recovery||Single-zone deployment||Multi-zone deployment|
|Performance optimization||Not supported||Customizable|
|Cross-region message router||Not supported||Not supported|
|Topic quota||The number of topics that you can create is the same as the number of topics that you purchase.||The number of topics that you can create is twice the number of topics that you purchase.|
|Access control list (ACL)||Not supported||Supported|
|SSL-based message encryption in virtual private clouds (VPCs)||Not supported||Supported|
|Message downloads||Not supported||Supported|
|Resource sharing||Specific resources are shared and network jitters may occur.||All resources are exclusive.|
|Disk capacity||If you purchase a disk of 300 GB in size, the actual storage space that you can use to store your business data is 100 GB. The remaining 200 GB is used to store backups.||If you purchase a disk of 300 GB in size, the actual storage space that you can use to store your business data is 300 GB. An additional 600 GB of storage space is free for you to store backups.|