Set-VMHVSCSIController.ps1

#Requires -Version 4.0
# Requires -Modules VMware.PowerCLI

<#
.SYNOPSIS
    Modifies the specified SCSI controller

.DESCRIPTION

.NOTES
    This PowerShell script was developed and optimized for ScriptRunner. The use of the scripts requires ScriptRunner. 
    The customer or user is authorized to copy the script from the repository and use them in ScriptRunner. 
    The terms of use for ScriptRunner do not apply to this script. In particular, ScriptRunner Software GmbH assumes no liability for the function, 
    the use and the consequences of the use of this freely available script.
    PowerShell is a product of Microsoft Corporation. ScriptRunner is a product of ScriptRunner Software GmbH.
    © ScriptRunner Software GmbH

.COMPONENT
    Requires Module VMware.PowerCLI

.LINK
    https://github.com/scriptrunner/ActionPacks/tree/master/VMware/Disks

.Parameter VIServer
    Specifies the IP address or the DNS name of the vSphere server to which you want to connect

.Parameter VICredential
    Specifies a PSCredential object that contains credentials for authenticating with the server

.Parameter VMName
    Specifies the virtual machine from which you want to retrieve the SCSI controllers 

.Parameter TemplateName
    Specifies the virtual machine template from which you want to modify the SCSI controller

.Parameter SnapshotName
    Specifies the snapshot from which you want to modify the SCSI controller

.Parameter DiskName
    Specifies the name of the SCSI hard disk you want to modify the SCSI controller 

.Parameter ControllerName
    Specifies the names of the SCSI controllers you want to modify

.Parameter BusSharingMode
    Specifies the bus sharing mode of the SCSI controller
#>

[CmdLetBinding()]
Param(
    [Parameter(Mandatory = $true,ParameterSetName = "VM")]
    [Parameter(Mandatory = $true,ParameterSetName = "Template")]
    [Parameter(Mandatory = $true,ParameterSetName = "Snapshot")]
    [string]$VIServer,
    [Parameter(Mandatory = $true,ParameterSetName = "VM")]
    [Parameter(Mandatory = $true,ParameterSetName = "Template")]
    [Parameter(Mandatory = $true,ParameterSetName = "Snapshot")]
    [pscredential]$VICredential,
    [Parameter(Mandatory = $true,ParameterSetName = "VM")]
    [Parameter(Mandatory = $true,ParameterSetName = "Snapshot")]
    [string]$VMName,
    [Parameter(Mandatory = $true,ParameterSetName = "Template")]    
    [string]$TemplateName,
    [Parameter(Mandatory = $true,ParameterSetName = "Snapshot")]
    [string]$SnapshotName,
    [Parameter(Mandatory = $true,ParameterSetName = "VM")]
    [Parameter(Mandatory = $true,ParameterSetName = "Template")]
    [Parameter(Mandatory = $true,ParameterSetName = "Snapshot")]
    [ValidateSet("NoSharing", "Physical", "Virtual")]
    [string]$BusSharingMode,
    [Parameter(ParameterSetName = "VM")]
    [Parameter(ParameterSetName = "Template")]
    [Parameter(ParameterSetName = "Snapshot")]
    [string]$DiskName,
    [Parameter(ParameterSetName = "VM")]
    [Parameter(ParameterSetName = "Template")]
    [Parameter(ParameterSetName = "Snapshot")]
    [string]$ControllerName
)

Import-Module VMware.PowerCLI

try{
    if([System.String]::IsNullOrWhiteSpace($DiskName) -eq $true){
        $DiskName = "*"
    }
    if([System.String]::IsNullOrWhiteSpace($ControllerName) -eq $true){
        $ControllerName = "*"
    }
    $Script:vmServer = Connect-VIServer -Server $VIServer -Credential $VICredential -ErrorAction Stop
    [hashtable]$cmdArgs = @{'ErrorAction' = 'Stop'
                            'Server' = $Script:vmServer
                            }                            
    if($PSCmdlet.ParameterSetName  -eq "Snapshot"){
        $vm = Get-VM @cmdArgs -Name $VMName
        $snap = Get-Snapshot @cmdArgs -Name $SnapshotName -VM $vm
        $cmdArgs.Add('Snapshot', $snap)
    }
    elseif($PSCmdlet.ParameterSetName  -eq "Template"){
        $temp = Get-Template @cmdArgs -Name $TemplateName
        $cmdArgs.Add('Template', $temp)
    }
    else {
        $vm = Get-VM @cmdArgs -Name $VMName
        $cmdArgs.Add('VM', $vm)
    }
    $Script:harddisks = Get-HardDisk @cmdArgs -Name $DiskName
    $script:output = Get-ScsiController -Server $Script:vmServer -HardDisk $Script:harddisks -Name $ControllerName -ErrorAction Stop `
                        | Set-ScsiController -BusSharingMode $BusSharingMode -ErrorAction Stop | Select-Object *

    if($SRXEnv) {
        $SRXEnv.ResultMessage = $script:output
    }
    else{
        Write-Output $script:output
    }
}
catch{
    throw
}
finally{    
    if($null -ne $Script:vmServer){
        Disconnect-VIServer -Server $Script:vmServer -Force -Confirm:$false
    }
}