Re: NTBackup.exe fails near 60 gig using backup to file to external USB hard drive.

Please check the system event log for relevant failures.

What does the event log say?

You may also want to try http://www.firstreamer.com/fsrm/. It allows both
SBS Backup and NTBackup to write directly to an external HDD with no bkf
files involved. This can make a difference.





<tad@xxxxxxxxxxxxxx> wrote in message
news:1152477341.180946.174360@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I've searched the web for info on this error and have found others with
the same issue but no one has provided any answers.

Backup job consistently fails near 45 - 70 gigs of backup to file
(.bkf). I receive the following error in the backup log file:

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 7/7/2006 at 7:25 PM.
Directories: 3134
Files: 36365
Bytes: 49,530,262,069
Time: 2 hours, 0 minutes, and 7 seconds

Error: D: is not a valid drive, or you do not have access.
----------------------
The operation did not successfully complete.
----------------------
=======================<END NTBACKUP LOG FILE>=====================
NTBackup finished the backup with errors.
For more information about failed backups, see the article on
troubleshooting your backup at the following Web page:
http://go.microsoft.com/fwlink/?LinkId=18414




I've followed the instructions on the provided link.

This is a Windows SBS 2003 Server with SP1. Shadow Copies appear to be
working and the external hard drive is formatted with NTFS (full
format) and has PLENTY of space. In addition, I have enabled drive
caching and disabled quick removal for the USB drive (doesn't seem to
make a difference). I've had the administrator account taken ownership
of all files and the job is running as administrator. There is no
consistency for where the backup fails, except that it is always
between 45 - 70 gigs and not on a specific file.

I've manually launched the SBS Backup using the NTBackup.exe program
and loading the script created by the SBS server. The jobs fail either
way. When backing up smaller chunks of data, the job succeeds. I am
able to backup the System State and Exchange in a separate job.

I would have expected consistent results using an external hard drive
instead of tapes.

Any advise would be greatly appreciated.



.

Relevant Pages

  • Re: Ntbackup seems not to start properly 30 to 50% of the time.
    ... Each night the script ran as a scheduled task, but the ntbackup routine itself did not. ... there is no entry in the event log. ... I built a small test server and using AT instead of Windows Scheduler, I had the script successfully run 6 backups per day for the last three days. ... This evening, again a 33 minute gap, no entry in the backup log and no "ntbackup" entry in the event log. ...
    (microsoft.public.windows.server.general)
  • Re: Backup Question on Sbs2003
    ... I understand that the ntbackup do not delete ... Do you use ntbackup utility or SBS backup wizard to backup SBS? ... I think the SBS backup component may corrupted. ... Please gather the latest NTbackup and SBS Backuprunner logs, ...
    (microsoft.public.windows.server.sbs)
  • Re: Ntbackup seems not to start properly 30 to 50% of the time.
    ... Each night the script ran as a scheduled task, but the ntbackup routine itself did not. ... there is no entry in the event log. ... I built a small test server and using AT instead of Windows Scheduler, I had the script successfully run 6 backups per day for the last three days. ... This evening, again a 33 minute gap, no entry in the backup log and no "ntbackup" entry in the event log. ...
    (microsoft.public.windows.server.general)
  • Re: Ntbackup seems not to start properly 30 to 50% of the time.
    ... Ntbackup seems not to start properly 30 to 50% of the time. ... I have a simple script running from scheduler. ... there is no entry in the event log. ... backup log and no "ntbackup" entry in the event log. ...
    (microsoft.public.windows.server.general)
  • Re: Ntbackup seems not to start properly 30 to 50% of the time.
    ... Ntbackup seems not to start properly 30 to 50% of the time. ... I have a simple script running from scheduler. ... there is no entry in the event log. ... backup log and no "ntbackup" entry in the event log. ...
    (microsoft.public.windows.server.general)
Loading