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Last Updated December 10, 2003

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Troubleshooting Backup and Recovery

A well thought out and executed backup strategy can save your business (and your job if you were unlucky enough to make a mistake). Unfortunately, the Windows 2000's built in Backup utilities come up a bit short for anything but a small LAN or a standalone server.  We've put together some of the best resources we could find on the topic, hopefully you'll use them to develop a backup plan before you need it. (And don't forget to test it as well.)

Known Bugs and Issues
A Network Adapter Is Missing in Device Manager After a Full Restore 
Microsoft Knowledge Base Article: 318715 - After you use Ntbackup.exe to perform a full restore or a full System State restore to restore a Windows 2000 installation over a clean Windows 2000 installation, the network adapter may be missing in Device Manager. Instead of the correct network adapter, a new device, such as a WAN miniport (L2TP) device, may be listed. You also might not be able to reinstall the network adapter

Advanced Settings Are Not Honored with Scheduled Backups
Microsoft Knowledge Base Article: 242881 - The Windows 2000 Backup (Ntbackup.exe) tool has several options that are either not honored when you schedule a backup to start at a later time or not available when you use command-line parameters or switches. 

Attempt to Restore a Mounted Store Does Not Stop Immediately
Microsoft Knowledge Base Article: 272589 - If a database store is not dismounted before you attempt to restore it with Ntbackup.exe, Ntbackup.exe should stop immediately and report an error message stating that the store must be dismounted first. Instead, Ntbackup.exe may run for an extended time, finish, and then report "Unable to restore, check the application event log for more information." The event log contains entries that indicate that a database is in use. A final event log entry states "restore ended successfully." 

Backup and Restore of RID Flexible Single-Master Operations Domain Controller Causes Duplicate SIDs 
Microsoft Knowledge Base Article: 307725 - When you back up and then restore the Directory service on a relative ID (RID) operations master (also known as flexible single-master operations or FMSO) domain controller (DC), duplicate Security ID (SID) events may appear in Event Viewer 

Backup Catalogs Are Missing When You Run Multiple Instances of Ntbackup.exe and Start Backups at the Same Time
Microsoft Knowledge Base Article: 325832 -
When you create more than one backup set at a time by running two or more instances of the Windows Backup Utility (Ntbackup.exe) at the same time, and you then start the backup jobs at almost the same time, catalog files that allow the restore of those backup sets may be missing from the Restore tab in NTBackup. Although the backups will complete successfully and without errors, when you try to restore the backups, one or more of the catalogs on the Restore tab in NTBackup is missing. You cannot re-create these missing catalogs while one of the other backups that was created at the same time already exists on the Restore tab. As a result, you cannot restore all backup sets that exist as backup jobs on a volume or tape

Backup Does Not Re-tension all Tapes of a Multiple Tape Backup Set
Microsoft Knowledge Base Article: 246179 When you use your Windows 2000-based computer to perform a backup that uses multiple tapes, only the first tape of the multiple tape backup set is re-tensioned.

Backup Runs Very Slow on IDE-Based (ATAPI) Tape Drives and Verification Operations May Not Work
Microsoft Knowledge Base Article: 263480 - When you perform a backup to an IDE-based (ATAPI) tape drive, the backup times are excessively long. A process that typically take minutes to complete, may take hours.

Backup Takes Much Longer When PAE Is Enabled
Microsoft Knowledge Base Article: 289261 - When you finish a backup while you are using Ntbackup.exe, if you start the computer with the PAE switch enabled, the backup may take longer than expected to complete (up to or longer than 10 times longer than expected). If you start the computer without the PAE switch, the backup finishes as expected. 

BUG: NTBackup can't backup individual files from a batch file or via a command prompt
Microsoft Knowledge Base Article: 216789 - When you run NTBackup from the command line or from a batch file, and you specify a single file to be backed up, (for example: ntbackup backup c:\xfer\test.txt /D "Test One" /l "c:\backup.log"), you will consistently get the following error: You do not have permission to access portions of specified path\filename By design, NTBackup can only back up directories when using a batch file or through a command prompt.

Cannot Back Up Registry or Event Logs on Dynamic Volumes
Microsoft Knowledge Base Article: 260913 - In Windows 2000, the Backup tool (Ntbackup.exe) cannot back up or restore the registry or event logs on Dynamic volumes. 

Cannot Restore Backup from USB Tape Drive or Back Up to the Drive If Verify Option Is Turned On
Microsoft Knowledge Base Article 328742 - When you use the backup program that is included with Windows 2000 (NTBackup.exe) with certain models of USB tape drives, you may not be able to restore backups from the USB tape drive or back up to the drive if the Verify option is turned on. 

Cannot Use a CD-RW Drive as a Backup Device in Windows 2000 
Microsoft Knowledge Base Article: 320471 - When you select the backup device in the Backup tool (Ntbackup.exe), you cannot select a compact disc-recordable (CD-R), compact disc-rewritable (CD-RW), or digital video disc-recordable (DVD-R) device. 

Computer Crashes When You Try to Restore Microsoft Information Store in Windows 2000  
Microsoft Knowledge Base Article: 290998 - When you try to restore Microsoft Information Store on a computer that runs Windows 2000 Server, the Key Management service and the Site Replication service cause the computer to stop responding (crash). 

EFS Backup Functions May Not Work on Computers That Are Running Windows 2000 
Microsoft Knowledge Base Article: 307306 - You cannot use backup software to back up or restore an encrypted folder that is located in an unencrypted folder to which the backup operator does not have access.

Err Msg: Tape Drive Has Been Detected But Driver Has Failed to Load or is not started
Microsoft Knowledge Base Article: 124379 - After you install the WangDAT Model 3200 tape drive and start the Windows NT Backup program (NTBACKUP.EXE), the following error message may appear: Tape drive has been detected but the driver has failed to load or is not started  

Error Message "The Backup File Is Unusable" When You Try to Restore Backup File
Microsoft Knowledge Base Article: 269826 - When you attempt to add data to or to restore data from a Microsoft Windows 2000 backup (.bkf) file, you may receive the following error message: Unrecognized Media] The backup file is unusable. You must erase it, or choose another file 

Backup Fails with Event ID 1450
Microsoft Knowledge Base Article: 304101 - This article applies to both Microsoft-supplied backup programs and to third-party backup programs that use the NT backup application programming interface (API). When you run a backup program, the backup may not complete successfully. This may occur even if you run the program locally on the server

Files in Single Instance Storage Replicate When Running NTBackup Against a Replicated Dfs Share 
Microsoft Knowledge Base Article: 271363 - When you use the Microsoft Windows NTbackup.exe program to back up a Distributed File System (Dfs - share that is synchronized with the FRS (File Replication service), the replication process to the other partners occurs as the files are backed up. 

Hewlett-Packard SureStore Tape Drive May Not Work on Computers with Large Amounts of Memory
Microsoft Knowledge Base Article: 269600 - When you use some models of Hewlett-Packard SureStore 4-mm digital audio tape (DAT) drives on a Windows 2000-based computer, Removable Storage recognizes the drive, but does not recognize any media in the drive even after you perform a full inventory. Because Removable Storage does not recognize the media, the "4MM DDS" media pools may not be created under the free, import, or unrecognized system pools. This problem prevents you from preparing new media, reading a tape, or writing to an existing tape. 

Installed Tape Device Is Not Recognized by Removeable Storage Manager
Microsoft Knowledge Base Article: 216328 - After you install a tape device or other removable-media device in Windows 2000, the device may appear in Device Manager but not in Windows 2000 Backup. When this occurs, your only choice in Backup is to back up to a file. 

No Files Are Displayed on Backup Tape or You Are Repeatedly Asked to Insert a Tape
Microsoft Knowledge Base Article: 325226 - You may experience any of the following symptoms: Microsoft Windows Backup (Ntbackup.exe) incorrectly reports that the tape in your tape drive contains data that was created by you, but no files are listed on the media. When you right-click the media...

Ntbackup Cannot Restore from Backup Sets Located on Second Tape in a Continuation Sequence
Microsoft Knowledge Base Article: 277701 - Attempting to restore a backup that is located on multiple tapes may not work. Ntbackup.exe may request tape 1, eject tape 1, and then request tape 1 again. Ntbackup.exe then reports a tape inconsistency. 

NTBackup Does Not Log Files from Exchange Server Database Backup and Restore Operation
Microsoft Knowledge Base Article: 259590 - NTBackup currently does not log files as being either backed up or restored for a Microsoft Exchange Server database backup and restore operation. 

Ntbackup.exe Does Not Truncate Active Directory Logs During a System-State Backup
Microsoft Knowledge Base Article: 272425 - When you create a system-state backup on a domain controller (DC), the NTDS logs are not cleaned up. The NTDS logs are being copied from the Edb.log file to an Edbxxxxx.log file each time backup runs, but the Edbxxxxx.log files are not deleted. The log files would normally be deleted by the circular logging nature of the DS. However, because some environments do not incur many changes, circular logging may appear to not work because it takes a long time to purge these files and disk space is wasted during this time. 

Ntbackup.exe May Cause 100 Percent Central Processing Unit Utilization 
Microsoft Knowledge Base Article: 252500 - If you use Windows 2000 Backup (Ntbackup.exe) to schedule a backup on your Windows 2000-based computer running Exchange Server version 5.5, when the backup process starts, the backup tape is not overwritten, and you may receive the following 

Problems Backing Up to HP C1533 DAT Tape Drive
Microsoft Knowledge Base Article: 211214 - When you back up files to a Hewlett-Packard (HP) C1533 DAT drive connected to an Adaptec 2940UW controller, the backup process may not finish. The following event may appear in Event Viewer repeatedly: The device, \Device\Scsi\aic78xx1, did not respond within the timeout period. Event #9 Source is "Error" 

Problem Restoring Data When Duplicate Media Names Exist
Microsoft Knowledge Base Article: 269385 - If you use Windows 2000 Backup with a stand-alone tape unit and a single scheduled backup job, when you attempt to restore your data you may experience difficulty selecting the correct media name.

Programs Do Not Work After Restoring Computer with Backup 
Microsoft Knowledge Base Article: 240240 - After you use the Backup tool to restore a complete system backup, some of your installed programs may not work correctly. Also, shortcuts located on your desktop may not function. 

Restore from Backup May Not Work Correctly on HP Travan Tape Drives
Microsoft Knowledge Base Article: 274053 - When you use Windows 2000 Backup (NTBackup.exe - to catalog or restore from a backup tape that you created by using a Hewlett-Packard Travan tape drive, you may encounter one of the following symptoms: 

Scheduled Backups Fail on Standalone Tape Drives After Changing Media
Microsoft Knowledge Base Article: 267574 - When you schedule a Windows 2000 unattended backup by using a standalone tape drive (library), the first backup job completes successfully. However, after you change the media, the next scheduled backup job does not back up the desired folder.

Scheduled Backup Jobs May Not Run As Expected
Microsoft Knowledge Base Article: 264604 - When you schedule a Windows 2000 backup job to run with user credentials different from the interactive user you are logged on as, the scheduled backup job may start when scheduled, but backup quits immediately and the actual backup task is...

Stop 0x0000007F When You Restart Your Computer with MCD Tape Changers
Microsoft Knowledge Base Article: 252182 - After you restart your computer with tapes in the tape changer library, you may receive the following error message on a blue screen at the end of the auto inventory sequence: 

System Restore Does Not Properly Recover Peripherals 
Microsoft Knowledge Base Article: 322649 - After you use NT Backup to restore a complete Windows 2000-based computer and system state, network adapter drivers, HBA adapter drivers, and other device drivers may not work correctly. This problem typically occurs only when more than one of each device is present in the computer during the backup/restoration process. 

The Ntbackup.exe Tool Stops Responding When You Use the /t Parameter with a Scheduled Backup Job 
Microsoft Knowledge Base Article: 306110 - After you schedule Ntbackup.exe to run in Unattended mode and specify a tape by using the /t tape label name parameter, Ntbackup.exe may stop responding (hang) in the background before the requested tape is mounted 

The Windows 2000 Ntbackup Program May Stop Responding 
Microsoft Knowledge Base Article: 291562 - If you enable detailed logging, the Ntbackup program may stop responding during a backup operation. The Windows NT backup graphical user interface (GUI) seems to display a file in the process of being backed up, however, Task Manager displays information that the Ntbackup program is not responding. You can use Task Manager to end the Ntbackup task. If you attempt to restore any information from the tape that you just created, the restore process is unsuccessful. However, if you switch the logging level to "summary" or "none", the backup process runs without any errors.

Unable to Label or Write to a Tape with an HP C1537A SCSI Tape Drive
Microsoft Knowledge Base Article: 275155 - When you try to label a tape or write to a tape by using a Hewlett-Packard (HP) C1537A SCSI tape drive, you may receive the following error message even though your tape is not write protected:

"Unknown Error" Error Message When You Create a Backup Over Your Network
Microsoft Knowledge Base Article: 815140 - When you perform a backup over your local area network by using Ntbackup.exe, you may receive the following error message: Error: The device reported an error on a request to dismount the media. Error reported: Unknown error.

Windows 2000 Backup May Leave Temporary (Regxxxxx) Files on the Computer
Microsoft Knowledge Base Article: 257534 - If you use Windows 2000 Backup (Ntbackup) to back up a Windows NT-based computer or Windows 2000-based computer over the network, temporary work files may be created on the remote computer with names similar to Reg, 

Windows 2000 Backup Does Not Back Up to CD-R/CD-RW/DVD-R Devices
Microsoft Knowledge Base Article: 262006 - When you choose the backup media device in Backup (Ntbackup.exe), you cannot choose a CD-R (compact disc--recordable), CD-RW (compact disc--rewritable), or DVD-R (digital video disc--recordable) device.

Windows 2000 Domain Controllers Restored with System State Backups Made Prior to SP2 May Not Boot 
Microsoft Knowledge Base Article: 295932 - This article discusses the following issues: 

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