Device ID to drive letter?

[Lynn McGuire]

> How do I go from a device name like "WCD WD1200" or a device ID like
> "IDE\WDC_WD1200JB______16.6V16\4457..." to finding what volumes and
> partitions are in these disks? I want to be able to relate a stripped XP
> volume with a drive letter and the two or more drives it spans, something
> like the ControlPanel Disk Management app. This only has to work in W2K or
> XP.

You can start with DiskId32 at http://www.winsim.com/diskid32/diskid32.html

Then you need something to read the partition table ?

Lynn

[Ralf Buschmann]

On Wed, 02 Oct 2002 20:34:40 GMT, "Steve" <nos...@attbi.com> wrote:

>How do I go from a device name like "WCD WD1200" or a device ID like
>"IDE\WDC_WD1200JB______16.6V16\4457..." to finding what volumes and
>partitions are in these disks? I want to be able to relate a stripped XP
>volume with a drive letter and the two or more drives it spans, something
>like the ControlPanel Disk Management app. This only has to work in W2K or
>XP.

Open a handle to the volume and send a
IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS via DeviceIoControl(). This IOCTL
does work in W2K, although the PSDK says XP. Note you can relate the
VolumeDiskExtents->Extent[x].DiskNumber to the enumeration index of the
physical disk in SetupDiEnumDeviceInfo. That is, say your "WDC WD1200"
disk device has member index 1 in the SetupDiEnumDeviceInfo()
enumeration, then VolumeDiskExtents->Extent[x].DiskNumber == 1 tells you
that the volume (or one of it's extents) is located on the disk you are
examining. You can proceed from there.

Ralf.

[Steve]

Thanks, I'll try that out.

Steve

"Ralf Buschmann" <ra...@backmagic.de> wrote in message
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