Re: Virtual Disk in User space

Thanks a lot. I will start working in that direction.

I have downloaded your kmdf video from Channel9. It is great. Please give
more such interviews - will help guys like me. Thanks again for your help.

regards,
Hassan

"Doron Holan [MS]" wrote:

not really. if you enumerate a volume (i think) then you can fmt it and get
fat/ntfs to mount on top of it. as long as you redirect the i/o to the
right offset in your file, this should work at a low level.

d

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"Sh@h" <Shh@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:0BF5A949-44F2-4EC8-B118-FA21FD29C7D3@xxxxxxxxxxxxxxxx
Thats great. Actually what I want to achieve is this:

A virtual device that will appear as a harddisk to the user. But the disk
actually maps to a filesystem in a single file (more like a filesystem
within
the operating system's filesystem - eg: AidAim FS). Like GoogleDrive,
except
for the fact that the files will be stored locally in a single file.

I guess I will have to write a full file-system driver + a harddisk
emulation driver. Am I right in assuming this ?

regards,
Sh@h

"Doron Holan [MS]" wrote:

actually, download KMDF
http://www.microsoft.com/whdc/driver/wdf/KMDF_pkg.mspx and use the KMDF
version of ramdisk. it has been updated and bugs have been fixed.

d

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"Stephan Wolf [MVP]" <stewo68@xxxxxxxxxxx> wrote in message
news:1155636566.265389.250910@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Sh@h wrote:
I want to create a virtual disk device. Could you please tell me
whether
it
is possible to build such a device & register it with windows in
user-mode ?

Old, but still useful:

FILE: Ramdisk.sys sample driver for Windows 2000
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q257405

Stephan







.

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