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| | |-+  NTFS or Raw - Disk Manager or Chkdsk
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Author Topic: NTFS or Raw - Disk Manager or Chkdsk  (Read 5522 times)
GerryW
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« on: May 27, 2016, 04:23:32 PM »

Good day!

Our Small Business Server 2008 encountered a problem backing up the OS drive (C:) which prompted us to attempt to perform a chkdsk on the C: drive but the result was RAW.   We then looked at Windows Disk Manager and there it indicates the C: is NTFS and Healthy.

Obviously there is a problem somewhere.   It's interesting to see conflicting information but we are reluctant to reboot the server if indeed chkdsk is right.

The server is running and does not indicate or present any problems.   All services and programs appear to work fine.

What tool would you suggest we use to see about resolving this before rebooting.

Note:  The C-drive (and two other volumes/drives) are on a RAID 10 setup using LSI SAS 9280-16i4e card.

Thanks in advance for your assistance!!

Gerry
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Tom
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WWW
« Reply #1 on: May 27, 2016, 09:41:29 PM »

Our Small Business Server 2008 encountered a problem backing up the OS drive (C:) which prompted us to attempt to perform a chkdsk on the C: drive but the result was RAW.
When running chkdsk on a live volume generally no changes are made to the disk that result in the file system becoming corrupt. What does RAW mean in this context, where did you see that term show up?
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GerryW
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Posts: 2


« Reply #2 on: May 27, 2016, 10:36:56 PM »

Open a administrative Command prompt.

c:\>chkdsk c:
The type of the filesystem is RAW.
 CHKDSK is not available for RAW drives.

Thanks,

Gerry
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Joep
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« Reply #3 on: May 28, 2016, 11:23:43 AM »

Hello,

File system type is recorded in several places; partition table and the volume boot record for example. One tool reporting a file system and another not (RAW) may be caused by each of the tools looking in different places for their information. Disk management may be looking at the partition info while chkdsk looks at the file system.

In this case I'd rely on Chkdsk, and that tool reporting a problem should be cause for concern. Even if the boot sector checks out, chkdsk may report a RAW state due to damage to file system structures. File system damage may be on the disk itself or during transfer data is corrupted.

Somehow you should get important data of the disk while you still can and this data should be verified (file being copied does not mean the data is intact).

At this stage our tools do not help you. Only if you discover files can not be copied, you may want to try iRecover. Note that iRecover and other file system recovery software depend on file system structures as well. If data inside the MFT for example is corrupt, or data is corrupted during transport, file system recovery may not be possible either.
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--
Kind regards,
Joep
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