Limitations
Certain limitations and quotas are in place to protect the infrastructure, and ensure a high level of security and performance:
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Downgrades are not possible. Cloud servers can only be upgraded to a more powerful plan, with the option to revert the upgrade within 72 hours.
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Images are region-specific. An image uploaded to one region can be used only for instances within that region.
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Modifying individual resources is not supported. Memory, vCPU, or disk configurations cannot be modified independently. For additional storage, you can attach a virtual drive to the cloud server.
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Only one public IPv4 address is provided. Each cloud server is limited to a single public IPv4 address. Alias addresses are not supported, but an IPv6 address can be ordered separately.
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Operating system reinstallation can be done only to the same type. Reinstallation can be performed only from Linux to Linux or from Windows to Windows.
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Linux and Windows servers can only be hosted separately. Cloud servers running on Linux and Windows are always deployed on separate physical nodes.
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User data can be accessed only via the Public API. Managing and injecting user-specific data into cloud instances can be done only through the Public API.
Quotas
By default, the following quotas are applied per account:
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Three cloud servers per region
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192 GB of RAM per region
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No more than 10 servers per account
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Global Private Network (GPN) is available when at least one dedicated server is ordered