Add-XenVMSS

Last published : Nov 12, 2026
Adds to fields of a VMSS object.

Syntax

Add-XenVMSS [-VMSS] <VMSS> [-PassThru] [-Schedule <KeyValuePair[string, string]>]
    [-BestEffort] [-SessionOpaqueRef <string>] [-WhatIf] [-Confirm] [<CommonParameters>]
Add-XenVMSS [-Ref] <XenRef[VMSS]> [-PassThru] [-Schedule <KeyValuePair[string, string]>]
    [-BestEffort] [-SessionOpaqueRef <string>] [-WhatIf] [-Confirm] [<CommonParameters>]
Add-XenVMSS [-Uuid] <guid> [-PassThru] [-Schedule <KeyValuePair[string, string]>]
    [-BestEffort] [-SessionOpaqueRef <string>] [-WhatIf] [-Confirm] [<CommonParameters>]
Add-XenVMSS [-Name] <string> [-PassThru] [-Schedule <KeyValuePair[string, string]>]
    [-BestEffort] [-SessionOpaqueRef <string>] [-WhatIf] [-Confirm] [<CommonParameters>]

Description

Adds values to the collection-valued fields of a VMSS. Each optional parameter listed below corresponds to a field that can be added to.

Parameters

-BestEffort

If set, the cmdlet continues processing further objects instead of throwing a terminating error when an operation fails for one object.
Attribute Value
Type SwitchParameter
Required False
Position Named
Accepts pipeline input False

-Confirm

Prompts for confirmation before running the cmdlet.
Attribute Value
Type SwitchParameter
Required False
Position Named
Accepts pipeline input False
Aliases cf

-Name

The name of the VMSS to operate on.
Attribute Value
Type string
Required True
Position 0
Accepts pipeline input True (ByPropertyName)
Aliases name_label

-PassThru

If set, the cmdlet returns the affected object. By default the cmdlet does not generate any output.
Attribute Value
Type SwitchParameter
Required False
Position Named
Accepts pipeline input False

-Ref

The VMSS object to operate on, specified by its opaque reference.
Attribute Value
Type XenRef[VMSS]
Required True
Position 0
Accepts pipeline input True (ByPropertyName)
Aliases opaque_ref

-Schedule

This parameter has no documentation.
Attribute Value
Type KeyValuePair[string, string]
Required False
Position Named
Accepts pipeline input False

-SessionOpaqueRef

The session object on which to run the cmdlet. This overrides the default session and lets you target a specific open XenServer connection.
Attribute Value
Type string
Required False
Position Named
Accepts pipeline input False

-Uuid

The UUID of the VMSS to operate on.
Attribute Value
Type guid
Required True
Position 0
Accepts pipeline input True (ByPropertyName)

-VMSS

The VMSS object to operate on.
Attribute Value
Type VMSS
Required True
Position 0
Accepts pipeline input True (ByValue)

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.
Attribute Value
Type SwitchParameter
Required False
Position Named
Accepts pipeline input False
Aliases wi

Inputs

  • VMSS
  • XenRef[VMSS]
  • guid
  • string

Outputs

  • VMSS
  • void

Examples

Example 1: Add a schedule

PS> $entry = [System.Collections.Generic.KeyValuePair[string,string]]::new("region", "emea")
PS> Add-XenVMSS -Schedule $entry -Name "Demo VMSS"

Example 2: Add a schedule piped from the getter

PS> $entry = [System.Collections.Generic.KeyValuePair[string,string]]::new("region", "emea")
PS> Get-XenVMSS -Name "Demo VMSS" | Add-XenVMSS -Schedule $entry
The object is piped in, which is the usual way once you already have it.

Example 3: Add a schedule by uuid

PS> $entry = [System.Collections.Generic.KeyValuePair[string,string]]::new("region", "emea")
PS> Add-XenVMSS -Schedule $entry -Uuid 1871ac51-ce6b-efc3-7fd0-28bc65aa39ff
-Uuid is the way to be sure of exactly one object.
  • Class: VMSS
  • Using the XenServer PowerShell module