无法设置SCOM维护模式远程（第2部分）

Question

从这个问题（Cannot set SCOM maintenance mode remotely）

我们正在试图把服务器处于维护模式远程跟进。我使用的是由汤姆·舒马赫创造SCOM功能（https://gallery.technet.microsoft.com/scriptcenter/Put-server-in-Maintenance-0a23e1fe）

我使用的PSSession，试图从比SCOM服务器之外的服务器将服务器置于维护模式：

. C:\Scripts\Start-serverScommaintenance.ps1 
$s = New-PSSession -ComputerName scomserver 
Invoke-Command -Session $s -Scriptblock {Import-Module OperationsManager} 
Invoke-Command -Session $s -Scriptblock ${function:Start- 
serverScommaintenance} 
Invoke-Command -Session $s -Scriptblock {Start-serverScommaintenance - 
servername testserver -message "test" -maintmodeinMinutes '6'} 

当我到函数，我得到以下错误：

无法验证参数'DisplayName'的参数。参数为空或空。提供一个不为空或空的参数，然后再次尝试该命令。 + CategoryInfo：InvalidData：（:) [GET-SCOMClassInstance]，ParameterBindingValidationException + FullyQualifiedErrorId：ParameterArgumentValidationError，Microsoft.SystemCenter.OperationsManagerV10.Commands.GetSCClassInstanceCommand + PSComputerName：scomserver

术语 '启动serverScommaintenance' 无法识别作为cmdlet，函数，脚本文件或可操作程序的名称。检查名称的拼写，或者如果包含路径 ，请验证路径是否正确，然后重试。 + CategoryInfo：ObjectNotFound：（启动serverScommaintenance：字符串）[]，CommandNotFoundException + FullyQualifiedErrorId：CommandNotFoundException + PSComputerName：scomserver

在这里被用于参考的功能的副本：

function Start-ServerScommaintenance 
{ 
param([string] $servername = 'yourServerGoeshere', 
    [string]$message = "Putting: $servername into Maintenance Mode via  automation", 
    [int]$maintModeinMinutes = '60') 

$funcName = 'func - Start-ServerScommaintenance:' 
if(get-command -Name 'Get-SCOMClassInstance') 
{ 
    $server = (Get-SCOMClassInstance -DisplayName "$servername*") | select -first 1 | select -ExpandProperty Displayname 
    $scommanagementServers = (Get-SCOMManagementServer).displayName 
    if($scommanagementServers -ccontains $server) 
    { 
     Write-Warning "$funcname contains a Management Server $server.. You cannot put a management server in Maintenance Mode!!!" 
    } 
    else 
    { 
     $time = ((get-date).AddMinutes($maintModeinMinutes)) 
     $serverClassIds = Get-SCOMClassInstance -DisplayName $server 
     foreach($classid in $serverClassIds) 
     { 
      $server1 = Get-SCOMClassInstance -id ($classid.id) | Where-Object{$_.DisplayName -match $server} 
      write-host "$funcName putting " ($server1.id) ' in maintenance Mode Servername -->' ($Server1.DisplayName) 
      if(!(Get-SCOMMaintenanceMode -Instance $classid)) 
      { 
       Start-SCOMMaintenanceMode -Instance $server1 -EndTime $time -reason PlannedOther -Comment $message 
      } 
      else 
      { Write-host "$funcname " $classid.id " has already been placed in Maintenance Mode"} 
     } 
    } 
} 
    else 
    { Write-host "$funcname doesn't have the Operationsmanager module imported for this session"} 
} 

function Stop-ServerScommaintenance 
{ 
param([string] $servername = 'yourServerGoeshere', 
    [string]$message = "Removing Maintenance Mode from: $servername via  automation" 
    ) 
$funcName = 'func - Stop-ServerScommaintenance:' 
if(get-command -Name 'Get-SCOMClassInstance') 
{ 
    $server = (Get-SCOMClassInstance -DisplayName "$servername*") | select - first 1 | select -ExpandProperty Displayname 
    $scommanagementServers = (Get-SCOMManagementServer).displayName 
    if($scommanagementServers -ccontains $server) 
    { 
     Write-Warning "$funcname contains a Management Server $server.. You  cannot put a management server in Maintenance Mode!!!" 
    } 
    else 
    { 
     $serverClassIds = Get-SCOMClassInstance -DisplayName $server 
     foreach($classid in $serverClassIds) 
     { 
      $server1 = Get-SCOMClassInstance -id ($classid.id) | Where- Object{$_.DisplayName -match $server} 
      write-host "$funcName removing " ($server1.id) ' in maintenance  Mode Servername -->' ($Server1.DisplayName) 
      $result = (Get-SCOMClassInstance -id ($classid.id)|Where-Object{$_.Displayname -like $servername}).StopMaintenanceMode((get-date).ToUniversalTime()) 
     } 
    } 
} 
else 
{ Write-host "$funcname doesn't have the Operationsmanager module imported for this session"} 
} 
#Start-serverScommaintenance -servername Server1 -message "my message" -maintmodeinMinutes '30' 
#Stop-ServerScommaintenance -servername Server1 -message "my message" 

Answer 1

我相信你需要在使用函数时将参数列表传递给参数列表，而不是使用参数再次调用函数：

Invoke-Command -Session $s -Scriptblock ${function:Start-serverScommaintenance} -argumentlist #argshere