troubleshooting Question

Help/advice on Windows Server Backup Errors

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solplus asked on
Microsoft Legacy OSMicrosoft Server OS
9 Comments1 Solution675 ViewsLast Modified:
I am having a backup “issues” on an SBS 2008 server (Windows Server 2007 SP2). The backup runs to completion, but windows server backup reports it as “Completed with warnings”.

The warning in question is:
“C: 3072 bytes could not be read due to the presence of bad clusters on your hard disk(s). Data on the bad clusters have not been backed up because they could not be read. Run the CHKDSK /R command on the hard disk, and then rerun the backup.”

When run from the command line wbadmin gives a similar, but slightly different error:
“WARNING: Your hard disk(s) have developed new bad clusters. Data on the bad clusters have not been backed up as they could not be read. Please run chkdsk /R on the hard disk and rerun backup. SYSTEM(C:) - 3072 bytes could not be backed because of bad clusters on the source volume.”.

Can someone help me understand the following?
1)      Why do I get this error right at the end of the backup when all of the preceding backup stages have reported success? Is there any way to tell which data (files) could not be backed up so that we can determine whether it is significant?
2)      The error suggests running chkdsk /R on the disc, but all of my investigations suggest that this is a waste of time on a Raid 5 volume? Do you agree?
3)      The exit code from WBADMIN START BACKUP  is -4; What does this mean?

In case it helps, I have attached an extract of the backup log file with all of the duplicate lines removed.

Thanks
Alan Mason

=============================================================

C:\Backup>WBADMIN START  SYSTEMSTATEBACKUP -backupTarget:F: -quiet
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2004 Microsoft Corp.

Starting System State Backup [11/11/2013 11:16]
Retrieving volume information...

This would backup the system state from volume(s) SYSTEM(C:) to F:.
Creating the shadow copy of volumes requested for backup.
……..
Identifying system state files to backup (This may take a few minutes)...
……..
Found (0) files
……..
Found (80333) files
Search for system state files complete
Starting backup of files
Overall progress - 0% (Currently backing up files reported by 'System Writer')
……..
Overall progress - 88% (Currently backing up files reported by 'System Writer')
Backup of files reported by 'System Writer' completed
Backup of files reported by 'FSRM Writer' completed
Backup of files reported by 'FRS Writer' completed
Overall progress - 88% (Currently backing up files reported by 'Certificate Authority')
……..
Overall progress - 97% (Currently backing up files reported by 'Certificate Authority')
Backup of files reported by 'Certificate Authority' completed
Backup of files reported by 'IIS Config Writer' completed
Backup of files reported by 'IIS Metabase Writer' completed
Backup of files reported by 'Dhcp Jet Writer' completed
Backup of files reported by 'TS Gateway Writer' completed
Backup of files reported by 'NPS VSS Writer' completed
Backup of files reported by 'SPSearch VSS Writer' completed
Overall progress - 98% (Currently backing up files reported by 'NTDS')
Backup of files reported by 'NTDS' completed
Overall progress - 99% (Currently backing up files reported by 'Registry Writer')
Overall progress - 99% (Currently backing up files reported by 'Registry Writer')
Backup of files reported by 'Registry Writer' completed
Backup of files reported by 'WMI Writer' completed
Backup of files reported by 'COM+ REGDB Writer' completed
Overall progress - 100% (Currently backing up additional system state files)

Summary of backup:
------------------

Backup of system state completed successfully [11/11/2013 12:44]

Log of files successfully backed up
'C:\Windows\Logs\WindowsServerBackup\SystemStateBackup 11-11-2013 11-16-49.log'


C:\Backup>WBADMIN START BACKUP -backupTarget:F: -include:C: -allCritical -vssFull -quiet
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2004 Microsoft Corp.

Retrieving volume information...
This would backup volume SYSTEM(C:) to F:.
Backup to F: is starting.
Creating the shadow copy of volumes requested for backup.
……..
Creating the shadow copy of volumes requested for backup.
……..
Running consistency check for application Exchange.
Running backup of volume SYSTEM(C:), copied (0%).
……..
Running backup of volume SYSTEM(C:), copied (100%).
Backup completed with errors.

Summary of backup:
------------------

Backup for volume SYSTEM(C:) completed with warning(s)


WARNING: Your hard disk(s) have developed new bad clusters. Data on the bad clusters have not been backed up as they could not be read. Please run chkdsk /R on the hard disk and rerun backup. SYSTEM(C:) - 3072 bytes could not be backed because of bad clusters on the source volume.
ASKER CERTIFIED SOLUTION
solplus

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