GetFree Dsik Space

[René Sørensen]

How do i get the free diskspace from a windows logic drive like C:\
and a network path like \\file-server??

Rene

 

[SerhaD Inanli]

Q: How to get the disk size and the free disk space?

A:
using System;
using System.Management;

....

ManagementObject disk = new
ManagementObject("win32_logicaldisk.deviceid="c:"");
disk.Get();
Console.WriteLine("Logical Disk Size = " + disk["Size"] + " bytes");
Console.WriteLine("Logical Disk FreeSpace = " + disk["FreeSpace"] + "
bytes");

 

[René Sørensen]

SerhaD Inanli sry i asked that question again, my post didn't came up with
my news reader, so thought it was me not posting it right.

The code you send is working, with logic drives, but i can't seem to figure
out how to it with a network path like "\\file-srever\appz\".



Eyal Safran gave me this code,

using System.Collections;

using System.Management;



ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT *
From Win32_LogicalDisk ");

ManagementObjectCollection queryCollection = query.Get();

//loop throught each object to get drive information

foreach ( ManagementObject mo in queryCollection)

{

switch (int.Parse( mo["DriveType"].ToString()))

{

case 2: //removable drives

break;

case 3: //Local drives

case 4: //Network drives

Console.WriteLine("Drive: {0}, FreeSpace: {1}", mo["Name"],

mo["FreeSpace"]);

break;

case 5: //CD rom drives

break;

case 6: //Ram Disk

break;

default: //defalut to folder

break;

}

}

This code is great to, and working if I have a mounted net work drive.

I have a dynamic network path like \\file-server\appz or maybe
\\file-server\user. And I have a function to calculate the size and a
function to get the size from the disk, like shown below here.

How do I get the size of this path GetFreeSpace("\\\\file-server\\appz");



public string GetFreeSpace( string drive )

{



ManagementObject disk = new
ManagementObject("win32_logicaldisk.deviceid=\"" + drive +""\"");



disk.Get();



return this.calc( Convert.ToDouble(
disk["Size"] ) );

}



private string calc( double size )

{

string[] sizes = new
string[5]{"B","Kb","Mb","Gb","Tb"};

int i = 0;





// calculate the size.

// If the size is over 1024 bytes, the Kb will be
add as the extension, and so on

while ( size >= 1024 && ( i < sizes.Length - 1) )

{

size /= 1024;

i++;

}



size = System.Math.Round( size, 2 );



// return the size as a string

return size.ToString() + " " + sizes[ i ];

}

 

[Publicjoe]

Hi Rene

This has been answered before, so take a look at
http://www.publicjoe.f9.co.uk/csharp/snip/snip010.html

Hope this helps

Publicjoe

C# Tutorial at http://www.publicjoe.f9.co.uk/csharp/tut.html
C# Ebook at http://www.publicjoe.f9.co.uk/csharp/samples/ebook.html
VB Tutorial at http://www.publicjoe.f9.co.uk/vbnet/vbnet.html
VB Ebook at http://www.publicjoe.f9.co.uk/vbnet/samples/ebook.html
Mirrors at http://dowhileloop.com/publicjoe/ and
http://publicjoe.dowhileloop.com

 

[Richard Grimes [MVP]]

Q: How to get the disk size and the free disk space?

A:
using System;
using System.Management;

Yuck!

This is the way that Microsoft recommends, but it really is horrible.
The reason is that it means that you'll have an interprocess call to the
WMI service, using COM interop. That's a lot of CPU cycles. It's far
quicker to use platform invoke and call GetDiskFreeSpaceEx.

Richard

 

[Willy Denoyette [MVP]]

Yuck!

This is the way that Microsoft recommends, but it really is horrible. The
reason is that it means that you'll have an interprocess call to the WMI
service, using COM interop. That's a lot of CPU cycles. It's far quicker
to use platform invoke and call GetDiskFreeSpaceEx.

Richard

Nonsense, this is not a query for a local drive's free space, its network
share free diskspace query , this involves a network hop anyway!
So, who cares if it takes 30 msec or 10 msec if you only need to call this
once every say 10 minutes?

Here is what I have measured over a local 100MB LAN.

using System.Management
Freespace 36523753472 on \\xxxxx\ZDRIVE
Total elapsed time: 27ms

using native C calling GetDiskFreeSpaceEx
Freespace 36523753472 on \\xxxxx\ZDRIVE
Total elapsed time: 9ms

Willy.