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New-VIProperty

Sun Jan 19, 2020 7:01 pm

NAME New-VIProperty



SYNOPSIS

This cmdlet creates a new extension property on the specified object type.





SYNTAX

New-VIProperty [-Name] <String> [-ObjectType] <String[]> [-Value] <ScriptBlock> [-BasedOnExtensionProperty

<String[]>] [-Force] [-Confirm] [-WhatIf] [<CommonParameters>]



New-VIProperty [-Name] <String> [-ObjectType] <String[]> [-ValueFromExtensionProperty] <String> [-Force]

[-Confirm] [-WhatIf] [<CommonParameters>]





DESCRIPTION

This cmdlet creates a new extension property on the specified object type. Changes take effect upon the next

retrieval of the corresponding objects.





PARAMETERS

-BasedOnExtensionProperty <String[]>

Specifies a list of strings that maps the properties of the $this.ExtensionData object. Use this parameter to

specify which members of ExtensionData are used by the script block provided for the Value parameter. This

parameter is case-sensitive.



Required? false

Position? named

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-Force [<SwitchParameter>]

Indicates that you want to create the new property even if another property with the same name exists for the

specified object type. This parameter is not applicable for core properties of an object type.



Required? false

Position? named

Default value False

Accept pipeline input? False

Accept wildcard characters? false



-Name <String>

Specifies a name for the new extension property. Names are case-sensitive and can include only letters,

numbers, and the underscore symbol. The name of a property must start with a letter or underscore.



Required? true

Position? 1

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-ObjectType <String[]>

Specifies the object types to which you want to append the new property. All PowerCLI object types are

supported.



Required? true

Position? 2

Default value None

Accept pipeline input? False

Accept wildcard characters? true



-Value <ScriptBlock>

Specifies a script block you want to use to compute the value of the new extended property.



Required? true

Position? 3

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-ValueFromExtensionProperty <String>

Specifies a string that maps a property of the $this.ExtensionData object. This parameter is case-sensitive.



Required? true

Position? 3

Default value None

Accept pipeline input? False

Accept wildcard characters? false



-Confirm [<SwitchParameter>]

If the value is $true, indicates that the cmdlet asks for confirmation before running. If the value is $false,

the cmdlet runs without asking for user confirmation.



Required? false

Position? named

Default value $true

Accept pipeline input? False

Accept wildcard characters? false



-WhatIf [<SwitchParameter>]

Indicates that the cmdlet is run only to display the changes that would be made and actually no objects are

modified.



Required? false

Position? named

Default value False

Accept pipeline input? False

Accept wildcard characters? false



<CommonParameters>

This cmdlet supports the common parameters: Verbose, Debug,

ErrorAction, ErrorVariable, WarningAction, WarningVariable,

OutBuffer, PipelineVariable, and OutVariable. For more information, see

about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).



INPUTS



OUTPUTS

The newly created VIProperty object







NOTES





In PowerShell 2.0, errors in evaluating values of new properties are not displayed. You can find information

about these errors in the $Error environment variable.



-------------------------- Example 1 --------------------------



New-VIProperty -ObjectType VirtualMachine -Name CommittedSpaceMB -Value { $vm = $args[0]; $sum = 0;

$vm.ExtensionData.Storage.PerDatastoreUsage | foreach { $sum += $_.Committed} ; $sum = [int]($sum / 1024 / 1024);

return $sum }



Get-VM | select Name, CommittedSpaceMB



Creates a script-based property for the VirtualMachine object type that calculates the committed space of a

virtual machine.

-------------------------- Example 2 --------------------------



New-VIProperty -ObjectType VirtualMachine -Name CommittedSpaceMB -Value { $vm = $args[0]; $sum = 0;

$vm.ExtensionData.Storage.PerDatastoreUsage | foreach { $sum += $_.Committed} ; $sum = [int]($sum / 1024 / 1024);

return $sum } -BasedOnExtensionProperty 'Storage.PerDatastoreUsage.Committed' -Force



Get-VM | select Name, CommittedSpaceMB



Creates a property that calculates the committed space of a virtual machine. The cmdlet uses the

BasedOnExtensionProperty parameter to specify which ExtensionData member is used by the script block. This mean

that during the creation of each virtual machine, only the specified property of extension data -

Storage.PerDatastoreUsage.Committed will be filled up.

-------------------------- Example 3 --------------------------



New-VIProperty -ObjectType VirtualMachine -Name CommittedSpace -ValueFromExtensionProperty 'SUM

Storage.PerDatastoreUsage.Committed'



Creates a new property that calculates the committed storage based on the property and aggregation function SUM

specified by the ValueFromExtensionProperty parameter.

-------------------------- Example 4 --------------------------



New-VIProperty -ObjectType InventoryItem -Name OverallStatus -ValueFromExtensionProperty 'OverallStatus'



Get-VM | select Name, OverallStatus



Get-VMHost | select Name, OverallStatus



Creates a new property based on the OverallStatus property for all inventory types.

-------------------------- Example 5 --------------------------



New-VIProperty -ObjectType VIObjectCore -Value { if ( $args[0].UId -match "/VIserver=[\\w]+@(.*):.*" ) {

$matches[1] } else { " } } -Name VIServerName



Get-Inventory | select Name, VIServerName



Creates a script-based property to VIObjectCore that parses the UId property and extracts the name of the server

to which a given object belongs.



RELATED LINKS

Online Version: https://code.vmware.com/doc/preview?id= ... perty.html

Get-VIProperty

Remove-VIProperty