Region: Select a region close to the resource for client deployment.
AZ:
Standard Edition: Does not support multi-AZ deployment.
Pro Edition: If the current region supports multi-AZ deployment, you can select up to two AZs for deployment. For more information on multi-AZ deployment, see Multi-AZ Deployment.
Product Specs: Select an appropriate model based on the peak bandwidth and disk capacity.
Message Retention Period: The value range is 24 hours (default) to 2,160 hours. Expired messages will be deleted to free up disk space. When the disk capacity is insufficient (i.e., the disk utilization reaches 90%), old messages will be deleted in advance to ensure the service availability.
VPC: Select an appropriate VPC according to your business needs.
Public Network Bandwidth: A Standard Edition or Pro Edition instance offers 1 or 3 Mbps public network bandwidth free of charge by default, respectively. If needed, you can pay to upgrade the public network bandwidth for your Pro Edition instance. For more information, see Public Network Bandwidth Management.
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