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| 1 | +--- |
| 2 | +title: Azure Confidential Computing FAQ |
| 3 | +description: Answers to frequently asked questions about Azure confidential computing. |
| 4 | +author: JBCook |
| 5 | +ms.topic: troubleshooting |
| 6 | +ms.workload: infrastructure |
| 7 | +ms.service: virtual-machines |
| 8 | +ms.subservice: workloads |
| 9 | +ms.date: 4/17/2020 |
| 10 | +ms.author: jencook |
| 11 | +--- |
| 12 | + |
| 13 | +# Frequently asked questions for Azure Confidential Computing |
| 14 | + |
| 15 | +This article provides answers to some of the most common questions about running [confidential computing workloads on Azure](overview.md). |
| 16 | + |
| 17 | +If your Azure issue is not addressed in this article, visit the Azure forums on [MSDN and Stack Overflow](https://azure.microsoft.com/support/forums/). You can post your issue in these forums, or post to [@AzureSupport on Twitter](https://twitter.com/AzureSupport). You can also submit an Azure support request. To submit a support request, on the [Azure support page](https://azure.microsoft.com/support/options/), select Get support. |
| 18 | + |
| 19 | +## Confidential Computing Virtual Machines <a id="vm-faq"></a> |
| 20 | + |
| 21 | +1. **How can you start deploying DCsv2 series VMs?** |
| 22 | + |
| 23 | + Here are some ways you can deploy a DCsv2 VM: |
| 24 | + - Using an [Azure Resource Manager Template](../virtual-machines/windows/template-description.md) |
| 25 | + - From the [Azure portal](https://portal.azure.com/#create/hub) |
| 26 | + - In the [Azure confidential compute (Virtual Machine)](https://azuremarketplace.microsoft.com/marketplace/apps/microsoft-azure-compute.acc-virtual-machine-v2?tab=overview) marketplace solution template. The marketplace solution template will help constrain a customer to the supported scenarios (regions, images, availability, disk encryption). |
| 27 | + |
| 28 | +1. **Will all OS images work with Azure confidential computing?** |
| 29 | + |
| 30 | + No. The virtual machines can only be deployed on Generation 2 virtual machines. We offer Generation 2 support for Ubuntu Server 18.04, Ubuntu Server 16.04, and Windows Server 2016 Datacenter. Read more about Gen 2 VMs on [Linux](../virtual-machines/linux/generation-2.md) and [Windows](../virtual-machines/windows/generation-2.md) |
| 31 | + |
| 32 | +1. **DCsv2 virtual machines are grayed out in the portal and I can't select one** |
| 33 | + |
| 34 | + Based on the information bubble next to the VM, there are different actions to take: |
| 35 | + - **UnsupportedGeneration**: Change the generation of the virtual machine image to “Gen2”. |
| 36 | + - **NotAvailableForSubscription** : The region isn't yet available for your subscription. Select an available region. |
| 37 | + - **InsufficientQuota**: [Create a support request to increase your quota](../azure-portal/supportability/per-vm-quota-requests.md). Free trial subscriptions don't have quota for confidential computing VMs. |
| 38 | + |
| 39 | +1. **DCsv2 virtual machines don't show up when I try to search for them in the portal size selector** |
| 40 | + |
| 41 | + Make sure you've selected an available region. Also make sure you select “clear all filters” in the size selector. |
| 42 | + |
| 43 | +1. **What’s the difference between DCsv2-Series and DC-Series VMs?** |
| 44 | + |
| 45 | + DC-Series VMs run on older 6-core Intel Processors with SGX. These have less total memory, less EPC (Enclave Page Cage) memory, and are available in less regions. These VMs are only available in US East and Europe West are available in two sizes: Standard_DC2s and Standard_DC4s. They will not go GA and can only be deployed in the [Confidential Compute DC-Series VM [Preview]](https://azuremarketplace.microsoft.com/marketplace/apps/microsoft-azure-compute.confidentialcompute?tab=Overview) Marketplace instance |
| 46 | + |
| 47 | +1. **Are DCsv2 virtual machines available globally?** |
| 48 | + |
| 49 | + No, these virtual machines are only available in select regions. Check the [products by regions page](https://azure.microsoft.com/global-infrastructure/services/?products=virtual-machines) for the latest available regions. |
| 50 | + |
| 51 | +1. **How do I install the Open Enclave SDK?** |
| 52 | + |
| 53 | + For instruction on how to install the OE SDK on a machine whether in Azure or on-premise, follow the instructions on the [Open Enclave SDK GitHub](https://github.com/openenclave/openenclave). |
| 54 | + |
| 55 | + You can also head to the Open Enclave SDK GitHub for OS-specific installation instructions: |
| 56 | + - [Install the OE SDK on Windows](https://github.com/openenclave/openenclave/blob/master/docs/GettingStartedDocs/install_oe_sdk-Windows.md) |
| 57 | + - [Install the OE SDK on Ubuntu 18.04](https://github.com/openenclave/openenclave/blob/master/docs/GettingStartedDocs/install_oe_sdk-Ubuntu_18.04.md) |
| 58 | + - [Install the OE SDK on Ubuntu 16.04](https://github.com/openenclave/openenclave/blob/master/docs/GettingStartedDocs/install_oe_sdk-Ubuntu_16.04.md) |
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