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NTBackup : Error: C: is not a valid drive, or you do not have access.

The backup is done to a USB drive on a network computer. THe error happens for both manual and scheduled backups. The backup is done with administrative rights using the Domain's Admin

Error message that appears after about 2 gigs out of 40 total on a file C:\...smipsdef64\20090113.001\MetaData.dat  6 minutes and 39 seconds into the backup is

THe device reported an error on a request to write data to media.
Error reported. Unknown error.
There maybe a hardware or media problem.
Please check the system event log for relevant failures.


EVENT LOG::


logs Event ID 8001  under application NTBACKUP with words:


End Backup of 'C:' 'Warnings or errors were encountered.'

       Verify:  On
       Mode:  Replace
       Type:  Normal
 
Consult the backup report for more details.


REPORT ::


Error: The device reported an error on a request to write data to media.
Error reported: Unknown error.
There may be a hardware or media problem.
Please check the system event log for relevant failures.
The operation was ended.
Backup completed on 2/9/2009 at 10:50 AM.
Directories: 1230
Files: 10373
Bytes: 2,060,084,503
Time:  6 minutes and  39 seconds

Error: C: is not a valid drive, or you do not have access.

The operation was ended.
Backup completed on 2/9/2009 at 10:50 AM.
Directories: 1230
Files: 10373
Bytes: 2,060,084,503
Time:  6 minutes and  53 seconds

----------------------

The operation did not successfully complete.






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Anti-Mhz
Asked:
Anti-Mhz
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1 Solution
 
itprotocallCommented:
is the destination USB drive formatted with NTFS or FAT32?
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Anti-MhzAuthor Commented:
file system: NTFS
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itprotocallCommented:
any errors in windows event viewer - system log - on the network computer to which this USB is attached to?

if you run ntbackup on that network computer, can you write more than 2GB to this USB?
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Anti-MhzAuthor Commented:
running backup on the "network" computer, computer that has the usb drive physically attached to came back with an error:

Media name: "NTBACKUP_test.bkf created 2/11/2009 at 9:10 PM"

Volume shadow copy creation: Attempt 1.

Error returned while creating the volume shadow copy:0x80042313.
Volume shadow copy creation: Attempt 2.

Error returned while creating the volume shadow copy:0x8004230f.

Error returned while creating the volume shadow copy:8004230f
Aborting Backup.

----------------------

The operation did not successfully complete.
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Anti-MhzAuthor Commented:
raising point value.  The VSS has an application log error:

Volume Shadow Copy Service error: Error calling a routine on the Shadow Copy Provider {24602736-bed9-4619-91b0-243447c6409c}. Routine details BeginPrepareSnapshot({5be822de-4f7b-4c5d-b5b0-e9c9f55f6617},{cfd0710f-dcd6-4bc0-8163-146ffbaa0235},\\?\Volume{bad4e219-b8dc-11dd-b93d-806e6f6e6963}\) [hr = 0x8000ffff].
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Anti-MhzAuthor Commented:
as well as

Volume Shadow Copy Service error: The I/O writes cannot be flushed during the shadow copy creation period on volume \\?\Volume{bad4e219-b8dc-11dd-b93d-806e6f6e6963}\. The volume index in the shadow copy set is 0. Error details: Open[0x00000000], Flush[0x80042313], Release[0x00000000], OnRun[0x00000000].


event id 12293 and  12297


I also have Symanted Endpoint Protection on the same computer. could that be an issue.
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Anti-MhzAuthor Commented:
The backup is done to an external USB hard dribe and both RPC and VSS services are set to automatic and they are started.
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itprotocallCommented:
for the VSS application log error, have a look at:
http://technet.microsoft.com/en-us/library/cc734484.aspx 
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Anti-MhzAuthor Commented:
@ itprotocall.

running vssadmin list shadowstore on elevated command prompt return


No items found that satisfy the query.


leads me to consider if shadow storage service is not active on the HD
yet vss is started in services.msc
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itprotocallCommented:
list shadowstorage may work when you have VSS snapshots enabled on the drive and scheduled to take snapshots on a regular basis. may not exactly be for the backup snapshots we are troubleshooting.

may be you have already looked at this: but do you have all the latest VSS updates from Microsoft
i came across quite a few towards end of 08.
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Anti-MhzAuthor Commented:
where can i get the latest vss updates? i have only found vss package and vss package 2
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Anti-MhzAuthor Commented:
ended up backing up to a non usb drive. went smooth with no errors.
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