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How to Verify That a Backup Completed Without Errors

 

Topic Last Modified: 2005-05-09

This topic explains how to verify that a backup has completed without errors.

  1. After a backup job completes, make sure that the Backup Progress dialog box displays Status: Completed.

    The Backup Progress dialog box

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  2. Click Report to view the backup log file to determine whether any errors occurred during the backup.

    By default, the log file is set to record only a summary of the backup job that is performed. If you receive error messages during a backup and want more detailed data about the failure, you can perform the backup again by using detailed logging. Then you can search the log file to find out exactly what happened. For more information about enabling detailed logging, see Selecting the Default Settings for Backup.

    The following is an example of a backup log of a Windows backup, including the Exchange folder, which completed without errors:

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

    Backup Status

    Operation: Backup

    Active backup destination: File

    Media name: "Windows Backup created 3/11/2004 at 5:28 PM"

    Backup (via shadow copy) of "C: BOOT"

    Backup set #1 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Media name: "Windows Backup created 3/11/2004 at 5:28 PM"

    Backup Type: Normal

    Backup started on 3/11/2004 at 5:31 PM.

    Backup completed on 3/11/2004 at 5:31 PM.

    Directories: 3

    Files: 29

    Bytes: 2,025,337

    Time: 1 second

    Backup (via shadow copy) of "D: System"

    Backup set #2 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Media name: "Windows Backup created 3/11/2004 at 5:28 PM"

    Backup Type: Normal

    Backup started on 3/11/2004 at 5:31 PM.

    Backup completed on 3/11/2004 at 5:48 PM.

    Directories: 1675

    Files: 12925

    Bytes: 1,919,675,569

    Time: 16 minutes and 55 seconds

    Backup (via shadow copy) of "F: Exchange"

    Backup set #3 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Media name: "Windows Backup created 3/11/2004 at 5:28 PM"

    Backup Type: Normal

    Backup started on 3/11/2004 at 5:48 PM.

    Backup completed on 3/11/2004 at 5:53 PM.

    Directories: 257

    Files: 3551

    Bytes: 1,083,988,436

    Time: 5 minutes and 0 seconds

    Backup (via shadow copy) of "System State"

    Backup set #4 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Media name: "Windows Backup created 3/11/2004 at 5:28 PM"

    Backup Type: Copy

    Backup started on 3/11/2004 at 5:53 PM.

    Backup completed on 3/11/2004 at 5:56 PM.

    Directories: 189

    Files: 2624

    Bytes: 461,069,597

    Time: 2 minutes and 36 seconds

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

    Verify Status

    Operation: Verify After Backup

    Active backup destination: File

    Active backup destination: H:\Windows Backup 3-11-04.bkf

    Verify of "C:"

    Backup set #1 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Verify started on 3/11/2004 at 5:56 PM.

    Verify completed on 3/11/2004 at 5:56 PM.

    Directories: 3

    Files: 29

    Different: 0

    Bytes: 2,025,337

    Time: 1 second

    Verify of "D:"

    Backup set #2 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Verify started on 3/11/2004 at 5:56 PM.

    Verify completed on 3/11/2004 at 5:57 PM.

    Directories: 1675

    Files: 12925

    Different: 0

    Bytes: 1,919,675,569

    Time: 1 minute and 18 seconds

    Verify of "F:"

    Backup set #3 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Verify started on 3/11/2004 at 5:57 PM.

    Verify completed on 3/11/2004 at 5:58 PM.

    Directories: 257

    Files: 3551

    Different: 0

    Bytes: 1,083,988,436

    Time: 34 seconds

    Verify of "System State"

    Backup set #4 on media #1

    Backup description: "Windows Backup created 3/11/2004 at 5:28 PM"

    Verify started on 3/11/2004 at 5:58 PM.

    Verify completed on 3/11/2004 at 5:58 PM.

    Directories: 189

    Files: 2624

    Different: 0

    Bytes: 461,069,597

    Time: 16 seconds

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

  3. Check the backup log file for errors. Make sure that there are no errors in the backup log file.

    noteNote:
    Each backup job adds information to this log file. You might have to scroll to the bottom of the log file to find the information that relates to the most recent backup.
  4. If you enabled verification for this backup job, you can view the Verify Status section of the log file to see which files in the backup (if any) do not match the original files on disk by looking at the Different: line in the log file. Note that some files change regularly, and a discrepancy between files does not always indicate a problem.

  5. Close the log file and the Backup Progress dialog box.

  6. Click Start, point to All Programs, point to Administrative Tools, and then click Event Viewer.

  7. In Event Viewer, in the console tree, click Application. In the details pane, make sure that there are no Error entries reported in the application event log that have "NTBackup" or "ESE" (the Extensible Storage Engine) as their source. These errors indicate that the backup has not been completely successful.

    importantImportant:
    This step is essential when you back up Exchange data. Some errors that occur will only show up in the application event log. Do not rely only on the backup logs when you back up Exchange.
    noteNote:
    To speed up your search, look for events that indicate when the backup and verification processes started and completed. Then review any events that occurred in between. Event 8000 indicates the start of the backup and Event 8019 indicates the end.
  8. Close Event Viewer after you have looked for errors.

 
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