How to get the device instance id of a disk or volume?

I am developing a software where I store the Instance ID of every disk
in the system. How can I get the Instance ID from a disk number? e.g I
want Instance ID of DIsk0 DIsk1 etc.?

here is what I am doing

1] SetupDiClassGuidsFromNameA("DiskDrive",***);
to get the GUID for disk drives

2]SetupDiEnumDeviceInf(***) to enumrate all the disks.This gives me
Instance ID's of all the disks

but how can I get the device instance ID of spesific disk(like
Disk0)?

Mark
Thu Jan 31 12:15:48 CST 2008

IOCTL_STORAGE_GET_DEVICE_NUMBER

On Jan 31, 1:01=A0pm, kulkarnihem...@gmail.com wrote:
> I am developing a software where I store the Instance ID of every disk
> in the system. How can I get the Instance ID from a disk number? e.g I
> want Instance ID of DIsk0 DIsk1 etc.?
>
> here is what I am doing
>
> 1] SetupDiClassGuidsFromNameA("DiskDrive",***);
> to get the GUID for disk drives
>
> 2]SetupDiEnumDeviceInf(***) to enumrate all the disks.This gives me
> Instance ID's of all the disks
>
> but how can I get the device instance ID of spesific disk(like
> Disk0)?

HemantKulkarni
Thu Jan 31 13:16:00 CST 2008


IOCTL_STORAGE_GET_DEVICE_NUMBER => gives the driver number and partition
number. I want instance ID the one which I get from
SetupDiGetDeviceInstanceId ()function.

My problem is how to get Instance ID from disk number like Disk0 Disk1 etc

"Mark Roddy" wrote:

> IOCTL_STORAGE_GET_DEVICE_NUMBER
>
> On Jan 31, 1:01 pm, kulkarnihem...@gmail.com wrote:
> > I am developing a software where I store the Instance ID of every disk
> > in the system. How can I get the Instance ID from a disk number? e.g I
> > want Instance ID of DIsk0 DIsk1 etc.?
> >
> > here is what I am doing
> >
> > 1] SetupDiClassGuidsFromNameA("DiskDrive",***);
> > to get the GUID for disk drives
> >
> > 2]SetupDiEnumDeviceInf(***) to enumrate all the disks.This gives me
> > Instance ID's of all the disks
> >
> > but how can I get the device instance ID of spesific disk(like
> > Disk0)?
>
>

Mark
Thu Jan 31 14:33:26 CST 2008

On Jan 31, 2:16=A0pm, Hemant Kulkarni
<HemantKulka...@discussions.microsoft.com> wrote:
> IOCTL_STORAGE_GET_DEVICE_NUMBER =3D> gives the driver number and partition=

> number. I want instance ID the one which I get from
> SetupDiGetDeviceInstanceId ()function.
>
> My problem is how to get Instance ID from disk number like Disk0 Disk1 etc=

>


You can map from the disk number returned by
IOCTL_STORAGE_GET_DEVICE_NUMBER to any of the names for each physical
disk.

typedef struct _STORAGE_DEVICE_NUMBER {
DEVICE_TYPE DeviceType;
ULONG DeviceNumber; <<<< 0..N applied to symbolic link name for
physical device
ULONG PartitionNumber;
} STORAGE_DEVICE_NUMBER, *PSTORAGE_DEVICE_NUMBER;


Open the device through the setup api interface name, query its device
number 'N'. That device is DiskN in Disk Manager and is DosDevice
PhysicalDriveN and \Device\HarddiskN\DR0 etc. The common element is
the DeviceNumber returned from IOCTL_STORAGE_GET_DEVICE_NUMBER and it
allows you to correlate all of the various names for physical disk
devices.
>
>
> "Mark Roddy" wrote:
> > IOCTL_STORAGE_GET_DEVICE_NUMBER
>
> > On Jan 31, 1:01 pm, kulkarnihem...@gmail.com wrote:
> > > I am developing a software where I store the Instance ID of every disk=

> > > in the system. How can I get the Instance ID from a disk number? e.g I=

> > > want Instance ID of DIsk0 DIsk1 etc.?
>
> > > here is what I am doing
>
> > > 1] SetupDiClassGuidsFromNameA("DiskDrive",***);
> > > to get the GUID for disk drives
>
> > > 2]SetupDiEnumDeviceInf(***) to enumrate all the disks.This gives me
> > > Instance ID's of all the disks
>
> > > but how can I get the device instance ID of spesific disk(like
> > > Disk0)?- Hide quoted text -
>
> - Show quoted text -

Maxim
Thu Jan 31 23:08:34 CST 2008

> 1] SetupDiClassGuidsFromNameA("DiskDrive",***);
> to get the GUID for disk drives

It is actually hardcoded by some name in the headers.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com