逻辑磁盘与磁盘分区的 WMI 关联 [英] WMI Association of LogicalDisk with DiskPartition
问题描述
我正在尝试整理一个列表,其中显示了我的计算机系统中的所有 LogicalDisk 实例以及它们关联的驱动器号.编码使用 C#.
I am trying to put together a list which shows all LogicalDisk instances in my Computer System and the drive letters they have been associated with. Coding is in C#.
WMI 类 Win32_LogicalDiskToPartition、Win32_DiskPartition 和 Win32_LogicalDisk 似乎是完成这项工作的正确数据源:
The WMI classes Win32_LogicalDiskToPartition, Win32_DiskPartition and Win32_LogicalDisk appeared to be the right data sources to get that Job done:
Win32_LogicalDiskToPartition 包含属性Antecedent";显然链接到DeviceId";Win32_DiskPartition
Win32_LogicalDiskToPartition contains the property "Antecedent" which obviously links to a "DeviceId" property of class Win32_DiskPartition
和 Win32_LogicalDiskToPartition 包含属性Dependent";显然链接到DeviceId";Win32_LogicalDisk
and Win32_LogicalDiskToPartition contains the property "Dependent" which obviously links to a "DeviceId" property of class Win32_LogicalDisk
这是我的问题:
Win32_LogicalDiskToPartition 的 Antecedent 属性返回一个字符串值,如:
The Antecedent property of Win32_LogicalDiskToPartition returns a string value like:
\\\\HOME-PC\\root\\cimv2:Win32_DiskPartition.DeviceID=\"Disk #2, Partition #0\
但我只需要 Disk #2, Partition #0
将其与 Win32_DiskPartition 类的 DeviceId 属性值匹配.
but I need only Disk #2, Partition #0
to match it with the DeviceId property values of class Win32_DiskPartition.
Dependent 属性值的类似问题.
Similar Problem with the Dependent property value.
有没有办法获得这个子串(硬编码字符串解析除外)?
Is there a way to obtain this substring (except by hard coded string parsing)?
恐怕查询无济于事,因为我还需要有关逻辑磁盘和关联磁盘分区的其他信息.我知道我必须用多个驱动器号覆盖扩展分区 - 这可以通过 Win32_LogicalDiskToPartition 实例的 StartingAddress 属性来完成.
I am afraid a query does not help because I do also need additional information about the logical disk and the associated disk Partition. I am aware that I have to cover Extended partitions with multiple drive letters - this can be done with the StartingAddress property of the Win32_LogicalDiskToPartition instance.
推荐答案
这种类型的枚举通常使用 System.Management
ManagementObjectSearcher
这是检索系统中驱动器信息时可以遵循的一种顺序路径:
This type of enumeration is usually performed using System.Management
ManagementObjectSearcher
This is one sequential path you can follow to retrieve information on drives in a system:
枚举磁盘驱动器 =>对于每个 [DeviceID] =>
枚举磁盘驱动器到分区 =>对于每个 [DeviceID]
枚举逻辑磁盘到分区
Enumerate the Disk Drives => For Each [DeviceID] =>
Enumerate Disk Drive To Partition => For Each [DeviceID]
Enumerate Logical Disk To Partition
每个类中的对象都有其关联的属性:
Objects in each class have their associated properties:
磁盘驱动器 (MSDN)
分区 (MSDN)
逻辑磁盘 (MSDN)
using System.Management;
//Define an initial scope for the following queries
var scope = new ManagementScope(@"\\" + Environment.MachineName + @"\root\CIMV2");
//Select all Disk Drives
var query = new SelectQuery("SELECT * FROM Win32_DiskDrive");
//Options => Timeout infinite to avoid timeouts and forward only for speed
var options = new EnumerationOptions();
options.Timeout = EnumerationOptions.InfiniteTimeout;
options.Rewindable = false;
options.ReturnImmediately = true;
//New root Management Object
var searcher = new ManagementObjectSearcher(scope, query, options);
//Enumerate all Disk Drives
foreach (ManagementObject moDisk in searcher.Get())
{
//Query the associated partitions of the current DeviceID
string assocQuery = "Associators of {Win32_DiskDrive.DeviceID='" +
mobDisk.Properties["DeviceID"].Value.ToString() + "'}" +
"where AssocClass=Win32_DiskDriveToDiskPartition";
var assocPart = new ManagementObjectSearcher(assocQuery);
assocPart.Options.Timeout = EnumerationOptions.InfiniteTimeout;
//For each Disk Drive, query the associated partitions
foreach (ManagementObject moPart in assocPart.Get())
{
Console.WriteLine("DeviceID: {0} BootPartition: {1}",
moPart.Properties["DeviceID"].Value.ToString(),
moPart.Properties["BootPartition"].Value.ToString());
//Query the associated logical disk of the current PartitionID
string logDiskQuery = "Associators of {Win32_DiskPartition.DeviceID='" +
moPart.Properties["DeviceID"].Value.ToString() + "'} " +
"where AssocClass=Win32_LogicalDiskToPartition";
var logDisk = new ManagementObjectSearcher(logDiskQuery);
logDisk.Options.Timeout = EnumerationOptions.InfiniteTimeout;
//For each partition, query the Logical Drives
foreach (var logDiskEnu in logDisk.Get())
{
Console.WriteLine("Volume Name: {0} Serial Number: {1} System Name: {2}",
logDiskEnu.Properties["VolumeName"].Value.ToString(),
logDiskEnu.Properties["VolumeSerialNumber"].Value.ToString(),
logDiskEnu.Properties["SystemName"].Value.ToString());
Console.WriteLine("Description: {0} DriveType: {1} MediaType: {2}",
logDiskEnu.Properties["Description"].Value.ToString(),
logDiskEnu.Properties["DriveType"].Value.ToString(),
logDiskEnu.Properties["MediaType"].Value.ToString());
}
}
}
这篇关于逻辑磁盘与磁盘分区的 WMI 关联的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!