DiskRP 2020-06-30 CLI changes

[laurawu19]

Resource Provider
Microsoft.Azure.Management.Compute (specifically DiskRP)

Description of Feature or Work Requested
Customers can create ultra disks with specific logicalSectorSize. The support values are 4096 and 512. And 4096 is the default value.

Customers can set performance tier of the disks when creating premium disks.

Customers can list associated resources which are using a specific disk encryption set.

We also exposed some fields for shared disks to customers and allow customers to update those properties.

Powershell Design doc: https://github.com/Azure/azure-powershell-cmdlet-review-pr/issues/725

Minimum API Version Required
2020-06-30

Swagger Link
Azure/azure-rest-api-specs#10208

Target Date
Next CLI release

[yungezz]

hi @laurawu19 will sync with you on timeline via email.

[qwordy]

4k alignment? What's the benefit of 512?

[laurawu19]

4k alignment? What's the benefit of 512?

Hi @qwordy ,
Ultra disk is a 4k native disk. There are some customers, for example, Blackrock using legacy apps or applications that allow < 4K IOs sector size (512E). So, diskRP introduces this property to support customers to create disks with 512E logicalSectorSize.

[qwordy]

512 doesn't work for me. 4096 works.

Deployment failed. Correlation ID: b398e722-ad7a-4544-93c7-f5e43a332fac. Exception creating storage object https://md-dd-a98de607f8a0431b9d47deb1b486fc3a.disk.core.windows.net/disks/a98de607-f8a0-431b-9d47-deb1b486fc3a

[qwordy]

Hi Lu. Some questions
1.What is tier? What's the corresponding swagger definition?
I find a "tier". It is read only.

class DiskSku(Model):
    """The disks sku name. Can be Standard_LRS, Premium_LRS, StandardSSD_LRS, or
    UltraSSD_LRS.

    Variables are only populated by the server, and will be ignored when
    sending a request.

    :param name: The sku name. Possible values include: 'Standard_LRS',
     'Premium_LRS', 'StandardSSD_LRS', 'UltraSSD_LRS'
    :type name: str or
     ~azure.mgmt.compute.v2020_06_30.models.DiskStorageAccountTypes
    :ivar tier: The sku tier.
    :vartype tier: str
    """

    _validation = {
        'tier': {'readonly': True},
    }

2.List associated resources which are using a specific disk encryption set
Is there a REST API for it? How do you implement it in PowerShell?

Thanks,

[laurawu19]

Hi Feiyue,

1. The "tier" refers to performance tier of the disk (e.g, P4, S10) and is different from the DiskTier in DiskSku model.
   Here is the description: https://azure.microsoft.com/en-us/pricing/details/managed-disks/

2. Yes. There is an API for it.
   Powershell command:
   Get-DiskManagerDiskEncryptionSetAssociatedResources -SubscriptionId sub -ResourceGroup rg --DiskEncryptionSetName desName -Region region

RestAPI:
Get
subscriptions/{subId}/resourceGroups/{rg}/providers/Microsoft.Compute/{diskEncryptionSets}/{name}/associatedResources

[qwordy]

Thanks Lu

[rahul602]

@qwordy ,

It's probably clear to you from Lu's comment, but I would still like to mention this for your reference. The sku tier is difference from the performance tier.
This is the swagger for it:
https://github.com/Azure/azure-rest-api-specs/blob/master/specification/compute/resource-manager/Microsoft.Compute/stable/2020-06-30/disk.json

    "tier": {
      "type": "string",
      "description": "Performance tier of the disk (e.g, P4, S10) as described here: https://azure.microsoft.com/en-us/pricing/details/managed-disks/. Does not apply to Ultra disks."
    }