无法将值“”转换为键入“System.Char”
您好我试图创建一个PS脚本来分配驱动器的字母,格式和标签与所需的分配单元大小的驱动器。无法将值“”转换为键入“System.Char”
CSV文件(Storage_Data_Input.txt)是这样的:
DiskNumber,DriveLetter,NewFileSystemLabel,AllocationUnitSize 7,N,Drive_N,4096
7,N,Drive_N,4096
的脚本是这样的:
######################## # New Partition/Drive letter/Format/Label/Allocation
Measure-Command{
Clear
$Datalist = Import-Csv "H:\My Documents\My Powershell\Storage_Data_Input.txt"
$ServerList = Get-Content "H:\My Documents\My Powershell\serverlist.txt"
ForEach ($Item in $Datalist){
$DiskNumber=$($Item.DiskNumber)
$driveletter=$($Item.DriveLetter)
$NewFileSystemLabel=$($Item.NewFileSystemLabel)
$AllocationUnitSize=$($Item.AllocationUnitSize)
$c=Get-Credential Domain\Userid
foreach ($ServerName in $ServerList){
Write-Host "Setting Drive_"$DriveLetter" on server "$ServerName""
Invoke-Command -ComputerName $ServerName -Credential $c -ScriptBlock {
Stop-Service -Name ShellHWDetection
New-Partition -DiskNumber "$DiskNumber" -UseMaximumSize -DriveLetter "$driveletter" | Format-Volume -FileSystem NTFS -NewFileSystemLabel "$NewFileSystemLabel" -AllocationUnitSize "$AllocationUnitSize" -Force -Confirm:$false
Start-Service -Name ShellHWDetection
}}}}
获取执行时出现以下错误:
Cannot process argument transformation on parameter 'DriveLetter'. Cannot convert value "" to type "System.Char". Error: "String must be exactly one character long." + CategoryInfo : InvalidData: (:) [New-Partition], ParameterBindin...mationException
+ FullyQualifiedErrorId : ParameterArgumentTransformationError,New-Partition
+ PSComputerName : Servername
回答:
如果您'执行远程变量必须通过作为参数列表传递或使用“使用”提供程序引用。
例如
Invoke-Command -ComputerName $ServerName -Credential $c -ScriptBlock { Stop-Service -Name ShellHWDetection
New-Partition -DiskNumber "$using:DiskNumber" -UseMaximumSize -DriveLetter "$using:driveletter" | Format-Volume -FileSystem NTFS -NewFileSystemLabel "$using:NewFileSystemLabel" -AllocationUnitSize "$using:AllocationUnitSize" -Force -Confirm:$false
Start-Service -Name ShellHWDetection
}
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