Configure storage

Configure storage settings when creating your pool on the Storage tab. The default setting is no empty data disk.

If you are configuring additional storage for an existing pool, go to the pool in the Azure portal as described in the following steps.

1. Sign in to the Azure portal.
2. Search for Managed DevOps Pools and select it from the available options.
3. Choose your Managed DevOps Pool from the list.
4. Go to Settings > Storage to configure the empty data disk settings for your pool.

Configure the following properties for your disk, and choose Apply (or Next if you are creating a pool) to save your changes. You can add a single empty data disk configuration for your Managed DevOps Pool, and all agent instances will have an empty data disk attached matching the configuration you specify.

Choose Delete to delete the data disk configuration for an existing pool.

Additional disk storage is configured in an ARM template in dataDisks section under storageProfile. In the following example, a 10 GB Standard_LRS disk is configured with the drive letter Q and no caching.

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "resources": [
        {
            "name": "fabrikam-managed-pool",
            "type": "microsoft.devopsinfrastructure/pools",
            "apiVersion": "2024-10-19",
            "location": "eastus",
            "properties": {
                ...
                "storageProfile": {
                    "osDiskStorageAccountType": "Standard",
                    "dataDisks": [
                        {
                            "diskSizeGiB": 10,
                            "caching": "None",
                            "storageType": "Standard_LRS",
                            "driveLetter": "Q"
                        }
                    ]
                }
            }
        }
    ]
}

To delete the data disk configuration for an existing pool, specify an empty list for dataDisks: "dataDisks": [].

Additional disk storage is configured using the dataDisks property in the storageProfile section in the fabric-profile parameter.

az mdp pool create \
   --fabric-profile fabric-profile.json
   # other parameters omitted for space

In the following example, a 10 GB Standard_LRS disk is configured with the drive letter Q and no caching.

The following example shows the storageProfile section of the fabric-profile.json file.

{
  "vmss": {
    "sku": {...},
    "images": [...],
    "osProfile": {...},
    "storageProfile": {
      "osDiskStorageAccountType": "Standard",
      "dataDisks": [
        {
          "diskSizeGiB": 10,
          "caching": "None",
          "storageType": "Standard_LRS",
          "driveLetter": "Q"
        }
      ]
    }
  }
}

To delete the data disk configuration for an existing pool, specify an empty list for dataDisks: "dataDisks": [].

In the following example, the agent working directory on a Windows agent is configured to use a folder on an attached data disk that is assigned the drive letter F.

pool: 
  name: fabrikam-managed-pool # Name of Managed DevOps Pool
  demands:
  - WorkFolder -equals f:\custom-work-folder # Windows agent example

For Linux agents, the data disk is mounted as /mnt/storage/sdc. The following example configures the agent working directory to be a folder named custom-work-folder on the data disk.

pool: 
  name: fabrikam-managed-pool # Name of Managed DevOps Pool
  demands:
  - WorkFolder -equals /mnt/storage/sdc/custom-work-folder