Snapshots are agentless data backups. You can create a snapshot to capture the point-in-time state of a disk or disk group to back up data. You can use snapshots to restore data, build development or test environments, or create custom images for batch deployment. This topic describes the billing rules of snapshots and the impacts of overdue payments on snapshots in Elastic Compute Service (ECS). This topic also provides examples on how to calculate snapshot fees.
Scenarios
Scenarios in which snapshots are created
Item | Description |
Price and billing formula | Snapshots are not stored on disks and do not consume disk space. You are charged region-specific snapshot storage fees based on the size of the snapshots that are stored in each region. Billing example: If you have 100 GB of snapshots in the China (Hangzhou) region and the unit price for snapshot storage is USD 0.0173 per GB-month, you are charged USD 0.002403 per hour and USD 0.057667 per day for snapshot storage. Formula: (USD 0.0173 per GB-month × 100 GB × 1 month)/30 days/24 hours ≈ USD 0.002403 per hour. Note
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Billing method |
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For information about how to create a snapshot, see Create a snapshot for a disk.
Scenarios in which snapshots are copied
Item | Description |
Price and billing formula | When you copy snapshots, you are charged snapshot storage fees and data transfer fees for snapshot replication.
Important
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Billing cycle | Bills are generated on an hourly basis. |
Billing method | Pay-as-you-go. This billing method allows you to use resources and pay for them afterwards. Fees are automatically deducted from the balance of your Alibaba Cloud account. |
Billing example | Assume that you copied a 100-GB snapshot from the China (Hangzhou) region to the China (Qingdao) region and retained the snapshot copy in the China (Qingdao) region for one month. During this period, you did not enable instant access for the snapshot. After the snapshot is copied, a 100-GB snapshot copy is also generated in the China (Qingdao) region. The data transfer unit price for snapshot replication from the China (Hangzhou) region to the China (Qingdao) region is USD 0.118 per GB. The unit price for snapshot storage in the China (Hangzhou) region or China (Qingdao) region is USD 0.0173 per GB-month.
Note The preceding prices are for reference only. The actual prices are displayed on the Pricing tab of the Elastic Compute Service product page. |
For information about how to copy a snapshot, see Copy a snapshot.
Snapshot cost optimization
You can retain an appropriate number of snapshots, delete snapshots that are no longer needed, and disable unnecessary automatic snapshot policies to reduce snapshot costs. For more information, see Reduce snapshot fees.
We recommend that you purchase SCUs to offset snapshot storage fees. For information about how to purchase SCUs, see Storage capacity units.
Stop snapshot billing
If you no longer need snapshots, you can delete them to prevent further charges.
Delete all snapshots, including automatic snapshots, manual snapshots, and snapshot copies. For more information, see Delete a snapshot.
After existing snapshots are deleted, check whether automatic snapshot policies are being applied. If automatic snapshot policies are being applied, delete the policies to ensure that no snapshots are automatically created. For more information, see Delete an automatic snapshot policy.
Impacts of overdue payments
If your Alibaba Cloud account has overdue payments, your snapshot service is affected. For more information, see Overdue payments.
FAQ about snapshot billing
For more information, see Snapshot FAQ.