如何获取远程计算机的磁盘容量和可用空间

Question

我有这个单行:

get-WmiObject win32_logicaldisk -Computername remotecomputer

输出是这样的:

DeviceID     : A:
DriveType    : 2
ProviderName :
FreeSpace    :
Size         :
VolumeName   :

DeviceID     : C:
DriveType    : 3
ProviderName :
FreeSpace    : 20116508672
Size         : 42842714112
VolumeName   :

DeviceID     : D:
DriveType    : 5
ProviderName :
FreeSpace    :
Size         :
VolumeName   :

如何获得Freespace和Size的DeviceID C:？我需要提取这两个值而没有其他信息.我用Selectcmdlet 尝试过,但没有效果.

编辑: 我只需要提取数值并将它们存储在变量中.

Answer 1

$disk = Get-WmiObject Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Select-Object Size,FreeSpace

$disk.Size
$disk.FreeSpace

仅提取值并将其分配给变量:

$disk = Get-WmiObject Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Foreach-Object {$_.Size,$_.FreeSpace}

Answer 2

更简单的解决方案:

Get-PSDrive C | Select-Object Used,Free

和远程计算机(需要Powershell Remoting)

Invoke-Command -ComputerName SRV2 {Get-PSDrive C} | Select-Object PSComputerName,Used,Free

Answer 3

只有一个命令简单甜美,但这只适用于本地磁盘

Get-PSDrive

你仍然可以做一个输入-的PSSession -ComputerName服务器名称远程服务器上使用此命令,然后运行Get-PSDrive来它会拉取数据,如果你从服务器上运行它.

Answer 4

我前后创建了一个PowerShell高级功能(脚本cmdlet),允许您查询多台计算机.

该函数的代码长度超过100行,因此您可以在此处找到它:PowerShell版本的df命令

查看" 用法"部分以获取示例.以下用法示例查询一组远程计算机(从PowerShell管道输入)并以表格格式显示输出,其中包含人类可读形式的数值:

PS> $cred = Get-Credential -Credential 'example\administrator'
PS> 'db01','dc01','sp01' | Get-DiskFree -Credential $cred -Format | Format-Table -GroupBy Name -AutoSize

   Name: DB01

Name Vol Size  Used  Avail Use% FS   Type
---- --- ----  ----  ----- ---- --   ----
DB01 C:  39.9G 15.6G 24.3G   39 NTFS Local Fixed Disk
DB01 D:  4.1G  4.1G  0B     100 CDFS CD-ROM Disc


   Name: DC01

Name Vol Size  Used  Avail Use% FS   Type
---- --- ----  ----  ----- ---- --   ----
DC01 C:  39.9G 16.9G 23G     42 NTFS Local Fixed Disk
DC01 D:  3.3G  3.3G  0B     100 CDFS CD-ROM Disc
DC01 Z:  59.7G 16.3G 43.4G   27 NTFS Network Connection


   Name: SP01

Name Vol Size   Used   Avail Use% FS   Type
---- --- ----   ----   ----- ---- --   ----
SP01 C:  39.9G  20G    19.9G   50 NTFS Local Fixed Disk
SP01 D:  722.8M 722.8M 0B     100 UDF  CD-ROM Disc

Answer 5

另一种方法是将字符串转换为WMI对象:

$size = ([wmi]"\\remotecomputer\root\cimv2:Win32_logicalDisk.DeviceID='c:'").Size
$free = ([wmi]"\\remotecomputer\root\cimv2:Win32_logicalDisk.DeviceID='c:'").FreeSpace

如果你想要不同的单位,你也可以将结果除以1GB或1MB:

$disk = ([wmi]"\\remotecomputer\root\cimv2:Win32_logicalDisk.DeviceID='c:'")
"Remotecomputer C: has {0:#.0} GB free of {1:#.0} GB Total" -f ($disk.FreeSpace/1GB),($disk.Size/1GB) | write-output

输出是: Remotecomputer C: has 252.7 GB free of 298.0 GB Total

Answer 6

我在其他建议中遇到了两个问题

1)如果在任务计划程序下运行powershell,则不支持驱动器映射

2)尝试在远程计算机上使用"get-WmiObject"时,可能会出现Access被拒绝错误错误(当然,这取决于您的基础结构设置)

不受这些问题影响的替代方法是将GetDiskFreeSpaceEx与UNC路径一起使用:

function getDiskSpaceInfoUNC($p_UNCpath, $p_unit = 1tb, $p_format = '{0:N1}')
{
    # unit, one of --> 1kb, 1mb, 1gb, 1tb, 1pb
    $l_typeDefinition = @' 
        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] 
        [return: MarshalAs(UnmanagedType.Bool)] 
        public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName, 
            out ulong lpFreeBytesAvailable, 
            out ulong lpTotalNumberOfBytes, 
            out ulong lpTotalNumberOfFreeBytes); 
'@
    $l_type = Add-Type -MemberDefinition $l_typeDefinition -Name Win32Utils -Namespace GetDiskFreeSpaceEx -PassThru

    $freeBytesAvailable     = New-Object System.UInt64 # differs from totalNumberOfFreeBytes when per-user disk quotas are in place
    $totalNumberOfBytes     = New-Object System.UInt64
    $totalNumberOfFreeBytes = New-Object System.UInt64

    $l_result = $l_type::GetDiskFreeSpaceEx($p_UNCpath,([ref]$freeBytesAvailable),([ref]$totalNumberOfBytes),([ref]$totalNumberOfFreeBytes)) 

    $totalBytes     = if($l_result) { $totalNumberOfBytes    /$p_unit } else { '' }
    $totalFreeBytes = if($l_result) { $totalNumberOfFreeBytes/$p_unit } else { '' }

    New-Object PSObject -Property @{
        Success   = $l_result
        Path      = $p_UNCpath
        Total     = $p_format -f $totalBytes
        Free      = $p_format -f $totalFreeBytes
    } 
}

Answer 7

命令行:

powershell gwmi Win32_LogicalDisk -ComputerName remotecomputer -Filter "DriveType=3" ^|
select Name, FileSystem,FreeSpace,BlockSize,Size ^| % {$_.BlockSize=
(($_.FreeSpace)/($_.Size))*100;$_.FreeSpace=($_.FreeSpace/1GB);$_.Size=($_.Size/1GB);$_}
^| Format-Table Name, @{n='FS';e={$_.FileSystem}},@{n='Free, Gb';e={'{0:N2}'-f
$_.FreeSpace}}, @{n='Free,%';e={'{0:N2}'-f $_.BlockSize}},@{n='Capacity ,Gb';e={'{0:N3}'
-f $_.Size}} -AutoSize

输出:

Name FS   Free, Gb Free,% Capacity ,Gb

---- --   -------- ------ ------------

C:   NTFS 16,64    3,57   465,752

D:   NTFS 43,63    9,37   465,759

I:   NTFS 437,59   94,02  465,418

N:   NTFS 5,59     0,40   1 397,263

O:   NTFS 8,55     0,96   886,453

P:   NTFS 5,72     0,59   976,562

命令行:

wmic logicaldisk where DriveType="3" get caption, VolumeName, VolumeSerialNumber, Size, FileSystem, FreeSpace

出:

Caption  FileSystem  FreeSpace     Size           VolumeName  VolumeSerialNumber

C:       NTFS        17864343552   500096991232   S01         EC641C36

D:       NTFS        46842589184   500104687616   VM1         CAF2C258

I:       NTFS        469853536256  499738734592   V8          6267CDCC

N:       NTFS        5998840832    1500299264512  Vm-1500     003169D1

O:       NTFS        9182349312    951821143552   DT01        A8FC194C

P:       NTFS        6147043840    1048575144448  DT02        B80A0F40

命令行:

wmic logicaldisk where Caption="C:" get caption, VolumeName, VolumeSerialNumber, Size, FileSystem, FreeSpace

出:

Caption  FileSystem  FreeSpace    Size          VolumeName  VolumeSerialNumber

C:       NTFS        17864327168  500096991232  S01         EC641C36

command-line:

dir C:\ /A:DS | find "free"

out:
               4 Dir(s)  17 864 318 976 bytes free

dir C:\ /A:DS /-C | find "free"

out:
               4 Dir(s)     17864318976 bytes free

Answer 8

刚刚找到Get-Volume命令，该命令返回SizeRemaining，因此(Get-Volume -DriveLetter C).SizeRemaining / (1e+9)可以使用类似的命令来查看磁盘 C 的剩余 Gb 大小。似乎比 更快Get-WmiObject Win32_LogicalDisk。

Answer 9

Get-PSDrive C | Select-Object @{ E={$_.Used/1GB}; L='Used' }, @{ E={$_.Free/1GB}; L='Free' }