# Quotas and limits

This reference describes usage quota and limits that apply to the sandbox environment.

![](/files/-M_NSxhwzBH0JmxfRIA7)

### Sandbox hosts

The Instruqt platform supports **virtual machines**, **containers** and **website services** as sandbox hosts:

* For **virtual machines**, multiple [machine types](/reference/platform/sandbox-host-machine-types.md) are supported, up to 32 vCPUs and 208 GB of memory.
* For **containers,** you can allocate up to 8 GB (8192 MB) of memory per sandbox container.
* Each sandbox is subject to a limit of **15 containers and website services combined** at any given time. This limitation helps ensure optimal performance and resource allocation for all users.

### Google Cloud Platform projects

The following limitations apply to GCP projects you create for learners as part of the sandbox environment.

* **Services**: You can enable all Google Cloud APIs for learners, *except* [serviceusage.googleapis.com](https://cloud.google.com/service-usage/docs/reference/rest), as this API allows the learner to enable additional services without intervention.
* **CPU quota:** Every project has a quota of 16 vCPUs per play, and this limitation does not apply to the sandbox hosts.
* **Machine types:** The following machine types are *not* available:
  * Memory-optimized (M1, M2)
  * Compute-optimized (C2)
  * Accelerator-optimized (A2)
* **GPU quota:** Currently allocation of GPU cores is disabled. If you have a legitimate use case for GPU cores, please reach out to your account manager.

### Azure subscriptions

The following limitations apply to Azure Subscriptions you create for learners as part of the sandbox environment.

* **Virtual machines**: Only General-Purpose type VM sizes with 16 *vCPU or less* are allowed. GPU (and all other accelerated) compute sizes are not allowed.

Supported virtual machine families:

* basicAFamily
* standardA0\_A7Family
* standardAv2Family
* standardBSFamily
* standardBsv2Family
* standardDASv4Family
* standardDASv5Family
* standardDASv6Family
* standardDAv4Family
* standardDCSv2Family
* standardDDSv4Family
* standardDDv4Family
* standardDFamily
* standardDLDSv5Family
* StandardDpsv6Family
* standardDSFamily
* standardDSv2Family
* standardDSv3Family
* standardDSv4Family
* standardDv2Family
* standardDv3Family
* standardDv4Family

Refer to the [Azure Documentation](https://docs.microsoft.com/en-us/azure/virtual-machines/sizes-general) for a complete list of types/sizes supported.

### AWS accounts

The following limitations apply to AWS accounts you create for learners as part of the sandbox environment.

* **EC2 Instances**: Only General-Purpose instance types are allowed. GPU (and all other accelerated) compute sizes are not allowed. The following list shows the valid machine types.
* **Route53 Domain**: It's not allowed to register domain names through Route53.

#### Supported AWS EC2 Instance Types

* t\*.nano
* t\*.micro
* t\*.small
* t\*.medium
* t\*.\*large
* m\*.nano
* m\*.micro
* m\*.small
* m\*.medium
* m\*.\*large
* a1.nano
* a1.micro
* a1.small
* a1.medium
* a1.\*large
* i\*.\*large

Refer to the [EC2 documentation](https://aws.amazon.com/ec2/instance-types/) for a complete list of types/sizes supported by AWS.


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