Using WMI to populate Disk Information

[Steve Gerhart]

Hopefully someone can point me in the right direction. I'm try to construct
a table that has the following information about disk drives on 2000 and NT
4.0 boxes.
Size, Partitions and Logical Drive information. I've figured out most of it,
but here's the problem.
The problem that I'm running into is that we have logical drives that have
no drive letter associated with them. WMI doesn't show logical drives that
have no drive letters. We use Mount points and for empty volume nothing at
all. I know that they change WMI in 2003, but I don't have that luxury. Is
there any way to do this, WMI (I'm missing something)remot e registry? some
third party component. I'm actually trying to show the same information on a
web page that disk manager shows.

Thanks
Steve Gerhart

[Justin Rogers]

If I do say, there are a number of volume management API functions you could
PInvoke
to get this information. You mention getting mount points, which is possible
using FindFirstVolume MountPoint, volumes using FindFirstVolume . There is a
whole lot of stuff available.
--
Justin Rogers
DigiTec Web Consultants, LLC.

"Steve Gerhart" <Ge******@hotma il.com> wrote in message
news:%2******** *********@TK2MS FTNGP10.phx.gbl ...

Hopefully someone can point me in the right direction. I'm try to construct
a table that has the following information about disk drives on 2000 and NT
4.0 boxes.
Size, Partitions and Logical Drive information. I've figured out most of it,
but here's the problem.
The problem that I'm running into is that we have logical drives that have
no drive letter associated with them. WMI doesn't show logical drives that
have no drive letters. We use Mount points and for empty volume nothing at
all. I know that they change WMI in 2003, but I don't have that luxury. Is
there any way to do this, WMI (I'm missing something)remot e registry? some
third party component. I'm actually trying to show the same information on a
web page that disk manager shows.

Thanks
Steve Gerhart

[Cyril Vi?ville]

"Justin Rogers" <Ju****@games4d otnet.com> wrote in message news:<ua******* *******@tk2msft ngp13.phx.gbl>. ..

If I do say, there are a number of volume management API functions you could
PInvoke
to get this information. You mention getting mount points, which is possible
using FindFirstVolume MountPoint, volumes using FindFirstVolume . There is a
whole lot of stuff available.
--
Justin Rogers
DigiTec Web Consultants, LLC.

"Steve Gerhart" <Ge******@hotma il.com> wrote in message
news:%2******** *********@TK2MS FTNGP10.phx.gbl ...

Hopefully someone can point me in the right direction. I'm try to construct
a table that has the following information about disk drives on 2000 and NT
4.0 boxes.
Size, Partitions and Logical Drive information. I've figured out most of it,
but here's the problem.
The problem that I'm running into is that we have logical drives that have
no drive letter associated with them. WMI doesn't show logical drives that
have no drive letters. We use Mount points and for empty volume nothing at
all. I know that they change WMI in 2003, but I don't have that luxury. Is
there any way to do this, WMI (I'm missing something)remot e registry? some
third party component. I'm actually trying to show the same information on a
web page that disk manager shows.

Thanks
Steve Gerhart

You just have to use System.Manageme nt.ManagementOb jectSearcher and
System.Manageme nt.ObjectQuery to make a "SQL-like" query and retrieve
info from

See that http://www.csharphelp.com/archives2/archive334.html and
Win32_LogicalDi sk info on MSDN

[Steve Gerhart]

Justin,

Thanks for the info. I not very familiar with calling windows APIs,
especially the storage API. Can you lead me to an example?
"Justin Rogers" <Ju****@games4d otnet.com> wrote in message
news:ua******** ******@tk2msftn gp13.phx.gbl...

If I do say, there are a number of volume management API functions you could PInvoke
to get this information. You mention getting mount points, which is possible using FindFirstVolume MountPoint, volumes using FindFirstVolume . There is a whole lot of stuff available.
--
Justin Rogers
DigiTec Web Consultants, LLC.

"Steve Gerhart" <Ge******@hotma il.com> wrote in message
news:%2******** *********@TK2MS FTNGP10.phx.gbl ...

Hopefully someone can point me in the right direction. I'm try to construct a table that has the following information about disk drives on 2000 and NT 4.0 boxes.
Size, Partitions and Logical Drive information. I've figured out most of it, but here's the problem.
The problem that I'm running into is that we have logical drives that have no drive letter associated with them. WMI doesn't show logical drives that have no drive letters. We use Mount points and for empty volume nothing at all. I know that they change WMI in 2003, but I don't have that luxury. Is there any way to do this, WMI (I'm missing something)remot e registry? some third party component. I'm actually trying to show the same information on a web page that disk manager shows.

Thanks
Steve Gerhart

[Cyril Vi?ville]

"Steve Gerhart" <Ge******@hotma il.com> wrote in message news:<e0******* *******@TK2MSFT NGP10.phx.gbl>. ..

Justin,

Thanks for the info. I not very familiar with calling windows APIs,
especially the storage API. Can you lead me to an example?
Do you know how to retrieve simple info with WMI in c#?
what are your drives without letter (network disk?) ?
"Justin Rogers" <Ju****@games4d otnet.com> wrote in message
news:ua******** ******@tk2msftn gp13.phx.gbl...

If I do say, there are a number of volume management API functions you

could

PInvoke
to get this information. You mention getting mount points, which is

possible

using FindFirstVolume MountPoint, volumes using FindFirstVolume . There is

a

whole lot of stuff available.
--
Justin Rogers
DigiTec Web Consultants, LLC.

"Steve Gerhart" <Ge******@hotma il.com> wrote in message
news:%2******** *********@TK2MS FTNGP10.phx.gbl ...

Hopefully someone can point me in the right direction. I'm try to construct a table that has the following information about disk drives on 2000 and NT 4.0 boxes.
Size, Partitions and Logical Drive information. I've figured out most of it, but here's the problem.
The problem that I'm running into is that we have logical drives that have no drive letter associated with them. WMI doesn't show logical drives that have no drive letters. We use Mount points and for empty volume nothing at all. I know that they change WMI in 2003, but I don't have that luxury. Is there any way to do this, WMI (I'm missing something)remot e registry? some third party component. I'm actually trying to show the same information on a web page that disk manager shows.

Thanks
Steve Gerhart

[Steve Gerhart]

I've written the code to gather all the Physical Disks, the partitions, and
the volumes. The volume part is the hard part, becuase I have volumes on
some of our big files servers that are either mount points or they have no
drive letter associated with them. WMI does not gather volume information
unless there are drive letters assoicated with the volume. I'm hoping there
is a way with WMI, but if it comes down to it, I just call some APIs... The
drives that do not have have a drive letter are not network drives. Thanks
"Cyril Vi?ville" <cy************ @hotmail.com> wrote in message
news:75******** *************** ***@posting.goo gle.com...

"Steve Gerhart" <Ge******@hotma il.com> wrote in message

news:<e0******* *******@TK2MSFT NGP10.phx.gbl>. ..

Justin,

Thanks for the info. I not very familiar with calling windows APIs,
especially the storage API. Can you lead me to an example?

Do you know how to retrieve simple info with WMI in c#?
what are your drives without letter (network disk?) ?

"Justin Rogers" <Ju****@games4d otnet.com> wrote in message
news:ua******** ******@tk2msftn gp13.phx.gbl...

If I do say, there are a number of volume management API functions you

could

PInvoke
to get this information. You mention getting mount points, which is

possible

using FindFirstVolume MountPoint, volumes using FindFirstVolume . There

is a

whole lot of stuff available.
--
Justin Rogers
DigiTec Web Consultants, LLC.

"Steve Gerhart" <Ge******@hotma il.com> wrote in message
news:%2******** *********@TK2MS FTNGP10.phx.gbl ...
> Hopefully someone can point me in the right direction. I'm try to

construct

> a table that has the following information about disk drives on 2000

and NT

> 4.0 boxes.
> Size, Partitions and Logical Drive information. I've figured out

most of it,

> but here's the problem.
> The problem that I'm running into is that we have logical drives

that have

> no drive letter associated with them. WMI doesn't show logical

drives that

> have no drive letters. We use Mount points and for empty volume

nothing at

> all. I know that they change WMI in 2003, but I don't have that

luxury. Is

> there any way to do this, WMI (I'm missing something)remot e

registry? some

> third party component. I'm actually trying to show the same

information on a

> web page that disk manager shows.
>
> Thanks
> Steve Gerhart
>
>

[Cyril Vi?ville]

"Steve Gerhart" <Ge******@hotma il.com> wrote in message news:<ef******* *******@tk2msft ngp13.phx.gbl>. ..

I've written the code to gather all the Physical Disks, the partitions, and
the volumes. The volume part is the hard part, becuase I have volumes on
some of our big files servers that are either mount points or they have no
drive letter associated with them. WMI does not gather volume information
unless there are drive letters assoicated with the volume. I'm hoping there
is a way with WMI, but if it comes down to it, I just call some APIs... The
drives that do not have have a drive letter are not network drives. Thanks
Weird, isn't there any option coz
DriveType have some values try to make a switch/case mode on that value like
switch (Convert.ToInt3 2(Lecteur["DriveType"]))
{
case 2:
name += "3 1/2 drive";
break;
case 3:
name += Lecteur["VolumeName "].ToString();
break;
case 5:
name += "CD-ROM";
break;
default:
name += Lecteur["Descriptio n"].ToString(); -> Maybe you'll have all others here
break;
}
"Cyril Vi?ville" <cy************ @hotmail.com> wrote in message
news:75******** *************** ***@posting.goo gle.com...

"Steve Gerhart" <Ge******@hotma il.com> wrote in message

news:<e0******* *******@TK2MSFT NGP10.phx.gbl>. ..

Justin,

Thanks for the info. I not very familiar with calling windows APIs,
especially the storage API. Can you lead me to an example?

Do you know how to retrieve simple info with WMI in c#?
what are your drives without letter (network disk?) ?

"Justin Rogers" <Ju****@games4d otnet.com> wrote in message
news:ua******** ******@tk2msftn gp13.phx.gbl...
> If I do say, there are a number of volume management API functions you could > PInvoke
> to get this information. You mention getting mount points, which is possible > using FindFirstVolume MountPoint, volumes using FindFirstVolume . There is
a > whole lot of stuff available.
>
>
> --
> Justin Rogers
> DigiTec Web Consultants, LLC.
>
> "Steve Gerhart" <Ge******@hotma il.com> wrote in message
> news:%2******** *********@TK2MS FTNGP10.phx.gbl ...
> > Hopefully someone can point me in the right direction. I'm try to construct > > a table that has the following information about disk drives on 2000 and
NT > > 4.0 boxes.
> > Size, Partitions and Logical Drive information. I've figured out most of
it, > > but here's the problem.
> > The problem that I'm running into is that we have logical drives that
have > > no drive letter associated with them. WMI doesn't show logical drives
that > > have no drive letters. We use Mount points and for empty volume nothing
at > > all. I know that they change WMI in 2003, but I don't have that luxury.
Is > > there any way to do this, WMI (I'm missing something)remot e registry?
some > > third party component. I'm actually trying to show the same information
on a > > web page that disk manager shows.
> >
> > Thanks
> > Steve Gerhart
> >
> >
>
>