see IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS
Else
“Phung, Tri T”
To: “NT Developers Interest List”
Sent by: cc:
xxxxx@lis Subject: *[ntdev] Re: Volumes on a physical drive
ts.osr.com
23.04.2003 18:38
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I guess you can use QueryDosDevice() for this purpose. On my machine, when
I
used this for drive C:, it returned \Device\HarddiskVolume1.
Good luck,
Tri
-----Original Message-----
From: Shaun [mailto:xxxxx@sdlabs.net]
Sent: Wednesday, April 23, 2003 11:35 AM
To: NT Developers Interest List
Subject: [ntdev] Re: Volumes on a physical drive
I’m not so interested in the layout as which volumes are hosted on
which physical drives. For instance I want to know which drive letters
are mounted on physical disk 0.
I have been looking in the object directory (using OBJDIR), and I
see that the \Device\HardDisk0 directory contains a symbolic link to
\Device\HardDiskVolume1 (as \Device\HardDisk0\Partition1). Looking in
DosDevices (aka Global?? on XP) I see that drive C: is also a
symbolic link to \Device\HardDiskVolume1.
So, I think that I can use this to build a list of drive letters on
each physical disk. Is this the only method to achieve this?
The disk manager uses a DLL called DMDSKMGR that seems to export a COM
object with lots of useful functions to do this sort of thing, but I
haven’t yet found any documentation on it.
Shaun
Wednesday, April 23, 2003, 4:07:21 PM, you wrote:
JF> I assume that Disk Manager uses IOCTL_DISK_GET_DRIVE_LAYOUT_EX to get a
list
JF> of partitions per physical disk. The Hardware SDK states that it’s
available
JF> in XP and above. Windows DDK description for PARTITION_INFORMATION
implies
JF> that it might be available on W2K. Afterwards,
FindFirstVolumeMountPoint
can
JF> be used.
JF> Hope this helps.
JF> Joze
JF> ----- Original Message -----
JF> From: “Shaun”
JF> To: “NT Developers Interest List”
JF> Sent: Wednesday, April 23, 2003 7:14 PM
JF> Subject: [ntdev] Volumes on a physical drive
>> Hi,
>>
>> Does anyone know a method of discovering which volumes (specifically
>> drive letter associated volumes) are mounted on a particular physical
>> disk on W2K/XP?
>>
>> The disk manager achieves this, so it would seem that it is possible,
>> but I can’t seem to find an obvious way to do it.
>>
>> Any clues (either application level or driver level) would be
>> appreciated.
>>
>>
>>
>> Shaun
>>
>>
>>
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