What is C:\$Extend\$UsnJrnl:$J:$DATA

_Who

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Sep 11, 2008, 9:03:00 PM9/11/08

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60 C:\$Extend\$UsnJrnl:$J:$DATA
1 C:\$LogFile
1 C:\$Bitmap
1 C:\$Boot
1 C:\$MFTMirr
1 C:\$MFT::$BITMAP

Should I be concerned that C:\$Extend\$UsnJrnl:$J:$DATA has 60 fragments?
And that the others have 1?

If so, how can I defrag them.

Thanks

Jim

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Sep 11, 2008, 9:12:10 PM9/11/08

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"_Who" <CalWho...@roadrunner.com> wrote in message
news:%231D0NNH...@TK2MSFTNGP04.phx.gbl...

I would be much more concerned about knowing which program created these
folders. I would also wonder what purpose the contents of the folders
serve. There are problably lots of other things about them which are cause
for concern. The last of these things is whether they need defragmentation
or not.
Jim

_Who

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Sep 11, 2008, 9:55:25 PM9/11/08

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I assumed they were system files.
When I show the folder C:/ they don't show.
Got any suggestions?

thanks

"Jim" <j...@invalid.invalid> wrote in message
news:eCiXYSHF...@TK2MSFTNGP06.phx.gbl...

John John (MVP)

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Sep 11, 2008, 10:00:42 PM9/11/08

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They're part of the NTFS structure, the $USN Journal is not read or used
by Windows but the others are essential to the health and proper
operation of the NTFS file system.

John

_Who

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Sep 11, 2008, 10:11:52 PM9/11/08

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"John John (MVP)" <aude...@nbnet.nb.ca> wrote in message
news:OuHwhtHF...@TK2MSFTNGP06.phx.gbl...

So it would appear that the fact that $USN Journal is fragmented is not
important.
The others each have one fragment. Is that worrisome?
thanks

John John (MVP)

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Sep 11, 2008, 11:03:29 PM9/11/08

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_Who wrote:

I wouldn't bother too much with it. Windows doesn't use this but other
applications use it to keep track of file changes, by default this is
disabled on Windows XP installations but any application can turn it on
if it needs it.

Change Journals
http://msdn.microsoft.com/en-us/library/aa363798.aspx

On Windows 2000 this journal was enabled by default and the file system
driver (ntfs.sys) could not overcome corruption in this file, although
infrequent, damage to this file had a pesky little side effect of
rendering the disk unreadable and unmountable. Changes were made to the
Windows XP file system driver and errors in the journal are ignored by
the driver and the disk can be mounted and read even when the journal is
corrupted.

Creating, Modifying, and Deleting a Change Journal
http://msdn.microsoft.com/en-us/library/aa363877(VS.85).aspx

Fsutil usn
http://technet.microsoft.com/en-us/library/cc788042.aspx

Change Journal Records
http://msdn.microsoft.com/en-us/library/aa363803(VS.85).aspx

Keeping an Eye on Your NTFS Drives: the Windows 2000 Change Journal
Explained
http://www.microsoft.com/msj/0999/journal/journal.aspx

John