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NTFS for Plug-and-Play drive

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#13017
Posted: 04/19/2010 16:52:12
by Gavin McKay (Standard support level)
Joined: 09/01/2009
Posts: 48

In v2 I use the SetFileSystemName function as "NTFS" so that Windows thinks my callback drive is an NTFS drive. In v3 is this possible for stDiskPnP as well, or are plug-and-play disks only FAT or FAT32?

I noticed that using the same function in v3 and then checking Disk Manager in Windows shows the filesystem as a blanks tring, but if I don't set the file system name to anything then it appears as FAT32.
#13027
Posted: 04/20/2010 07:47:07
by Volodymyr Zinin (EldoS Corp.)

We will fix it shortly. But it's possible to do only for "known for Windows" file system names - such as "FAT32", "NTFS", "CDFS", etc. For other names the information in the disk management console about the partition's file system name will be shown either as empty field or "unrecognized partition type".
#13039
Posted: 04/20/2010 16:30:12
by Gavin McKay (Standard support level)
Joined: 09/01/2009
Posts: 48

Will that make any difference to the way Windows handles requests? I am using Named Streams which I think is an NTFS function, will named streams therefore not work because Windows doesn't recognise my drive as NTFS?
#13043
Posted: 04/21/2010 00:31:57
by Eugene Mayevski (EldoS Corp.)

Yes, Windows behaves differently, if it gets NTFS as a file system name. Moreover, this behavior differs across versions of Windows (not significantly but anyway).


Sincerely yours
Eugene Mayevski
#13048
Posted: 04/21/2010 02:24:52
by Gavin McKay (Standard support level)
Joined: 09/01/2009
Posts: 48

OK, so by the sounds of it them Named Streams wouldn't work unless I have NTFS set as the file system name? I am using that functionality, but it isn't a core module. Yet :)
#13051
Posted: 04/21/2010 03:54:25
by Volodymyr Zinin (EldoS Corp.)

Additional named streams can be used with any file system name.
#13053
Posted: 04/21/2010 05:04:46
by Gavin McKay (Standard support level)
Joined: 09/01/2009
Posts: 48

Are you sure? According to this MSDN article "[URL=http://msdn.microsoft.com/en-us/library/ee681827(VS.85).aspx]File System Functionality Comparison[/URL]" it says Named streams are *not* supported in FAT32.

The reason I ask is that if Windows does not see the drive as NTFS, will that automatically mean that Windows will ignore any requests for Named streams?
#13054
Posted: 04/21/2010 05:30:38
by Volodymyr Zinin (EldoS Corp.)

Quote
Gavin McKay wrote:
Are you sure? According to this MSDN article "File System Functionality Comparison" it says Named streams are *not* supported in FAT32.

We are talking about the CallbackFS file system that is named somehow.

Quote
Gavin McKay wrote:
The reason I ask is that if Windows does not see the drive as NTFS, will that automatically mean that Windows will ignore any requests for Named streams?

Windows doesn't ignore named stream requests even if a file system is named as "FATFS".
#13079
Posted: 04/21/2010 18:16:48
by Gavin McKay (Standard support level)
Joined: 09/01/2009
Posts: 48

OK cool, thanks Vlad.
Also by EldoS: RawDisk
Access locked and protected files in Windows, read and write disks and partitions and more.

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