Data Transfer Cost
Data transfer can be traffic coming into Zilliz Cloud, leaving Zilliz Cloud out into the internet, or in between two resources within Zilliz Cloud. Data transfer costs in Zilliz Cloud are billed based on the amount of data transferred.
Each organization receives a $10 monthly data transfer discount, covering the first 100 GB.
The following table compares the different data transfer types.
Data Transfer Type | Description | Pricing |
|---|---|---|
Internet egress | Public Internet egress is outbound traffic from a Zilliz Cloud cluster to the public Internet or to another cloud provider when accessed through the public endpoint. This occurs when read, write, query, or migration traffic through the public endpoint leaves the current cloud provider’s network. Traffic that remains within the same cloud provider’s backbone (e.g., cross-region) is billed separately as cross-region data transfer, not Internet egress. | The most expensive and the cost is determined by the source destination. For detailed rates, see Zilliz Cloud Pricing Guide. |
Cross-region | Cross-region data transfer refers to data moved between different regions of the same cloud provider. This includes:
|
|
Intra-region | Intra-region data transfer refers to the transfer of data between within the same region of a cloud provider. This includes:
| Free |
Sources of data transfer cost
You will be billed for data transfer in the following scenarios:
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Operations like search/query
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Forwarding audit logs to cloud object storage
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Zero downtime migration data sync
If the data transfer occurs within the same cloud region, the cost may be $0.
If you use a private endpoint to conduct operations like search or query, no data transfer cost will incur.
Cost calculation
Data Transfer Cost = Data Transfer Unit Price × Transferred Data Size
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Data Transfer Unit Price: Determined by cluster cloud provider and region, data transfer type (public internet, cross-region, or intra-region). For detailed rates, see Zilliz Cloud Pricing Guide.
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Transferred Data Size: Measured in GB and calculated based on the size of the data sent over the network.
Examples
The following are some examples to help you understand how storage costs are calculated.
Example 1: Public internet egress
Suppose your cluster is deployed in AWS us-east-1 (Virginia) and you return search results to clients via the public internet:
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Transferred Data Size: 500 GB over one month
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Transfer Type: Public Internet Egress
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Source Continent: North America
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Unit Price: $0.09/GB (based on public internet egress rate from North America)
The data transfer cost is $0.09 × 500 = $45.00.
Example 2: Cross-region transfer
Suppose your cluster is deployed in GCP us-west1 (Oregon) and you need to back up this cluster to 2 different regions, GCP us-central1 (Iowa) and GCP europe-west3 (Frankfurt):
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Backup File Size: 20 GB
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Transfer Type: Cross-region Transfer
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Source Continent: North America
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Destination Continent: North America & Europe
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Unit Price:
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Data transfer from North America (GCP us-west1) to North America (GCP us-central1) is billed at the rate of $0.02/GB.
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Data transfer from North America (GCP us-west1) to Europ (GCP europe-west3) is billed at the rate of $0.05/GB.
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The data transfer cost is $0.02 × 20 + $0.05 x 20 = $1.40.
Example 3: Intra-region transfer
Suppose you have enabled audit logging for your cluster deployed in AWS us-east-1 (Virginia) and you need to forward the audit logs of this cluster to an AWS S3 bucket created in the same cloud region. The data transfer cost in this case will be $0 because intra-region data transfer is free of charge.