> For the complete documentation index, see [llms.txt](https://rubrik.gitbook.io/rubrik-sdk-for-powershell/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rubrik.gitbook.io/rubrik-sdk-for-powershell/command-documentation/reference/get-rubrikhvmformatautoupgrade.md).

# Get-RubrikHvmFormatAutoUpgrade

## SYNOPSIS

Retrieves the HyperV Virtual Machine format auto upgrade settings from a Rubrik cluster

## SYNTAX

```
Get-RubrikHvmFormatAutoUpgrade [[-Server] <String>] [[-api] <String>] [<CommonParameters>]
```

## DESCRIPTION

The Get-RubrikHvmFormatAutoUpgrade cmdlet is used to retrieve the HyperV Virtual Machine format auto upgrade settings from a Rubrik cluster. There are two configurations available:

* 'migrateFastVirtualDiskBuild' is a boolean flag that controls the use of&#x20;

  &#x20; the fast VHDX builder during Hyper-V virtual machine migration.

  When

  &#x20; the flag is 'true', the Hyper-V VM uses the fast VHDX builder the&#x20;

  &#x20; next time, VM is backed up.

  A value of false disables the fast VHDX

  &#x20; builder.

  This flag is used in combination with the&#x20;

  &#x20; maxFullMigrationStoragePercentage value.
* 'maxFullMigrationStoragePercentage', is an integer which specifies a

  &#x20; percentage of the total available storage space.

  When performing a

  &#x20; full hyperv VM backup operation would bring the total used

  &#x20; storage space above this threshold, the cluster takes incremental backups

  &#x20; instead.

  This value is used in combination with the

  &#x20; migrateFastVirtualDiskBuild flag.

## EXAMPLES

### EXAMPLE 1

```
Get-RubrikHvmFormatAutoUpgrade
```

This will return the HyperV Virtual Machine format auto upgrade settings from the connected cluster.

## PARAMETERS

### -Server

Rubrik server IP or FQDN

```yaml
Type: String
Parameter Sets: (All)
Aliases:

Required: False
Position: 1
Default value: $global:RubrikConnection.server
Accept pipeline input: False
Accept wildcard characters: False
```

### -api

API version

```yaml
Type: String
Parameter Sets: (All)
Aliases:

Required: False
Position: 2
Default value: $global:RubrikConnection.api
Accept pipeline input: False
Accept wildcard characters: False
```

### CommonParameters

This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about\_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).

## INPUTS

## OUTPUTS

## NOTES

Written by Abhinav Prakash for community usage github: ab-prakash

## RELATED LINKS

<https://rubrik.gitbook.io/rubrik-sdk-for-powershell/command-documentation/reference/get-rubrikhvmformatautoupgrade>


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