PERFORMING AN AUTHORITATIVE RESTORE OF AN APPLICATION DIRECTORY
PARTITION
Origin/Author : ROBIN MCCLUNEY
Approved by :
Date Approved :
Capgemini UK plc
77-79 Cross Street
Sale
Cheshire
M33 7HG
Phone +44 (0)161 969 3611
Fax +44 (0)161 973 9016
Contents
1. Introduction 2
2. Restore from backup media 2
2.1 To restore from backup media 2
3. Mark the application partition as authoritative 3
3.1 To mark an application partition as authoritative 3
APPENDICES 5
Appendix A: Appendix Title 5
Appendix B: Document Control 6
THIS DOCUMENT CONTAINS 7 PAGES INCLUDING TITLE PAGE
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© Capgemini UK plc 2004
1. Introduction
Restoration of an application partition will mark all data that is
present in the application partition as authoritative for the replica
set. Information that is contained within an application partition will
replicate to all domain controllers in the forest that were previously
present in the replica set. You should have a current valid backup of
the application partition prior to restoring, in the event that
particular object changes are lost because of changes since backup.
Task Requirements
The following tools are required to perform the procedures for this
task:
· Backup.exe
· Ntdsutil.exe
To complete this task, perform the following procedures:
Restore from backup media
Mark the application partition as authoritative
Restart the computer
Once the authoritative restore of the object or objects has been
completed a second time, the domain controller can be restarted in
normal mode.
2. Restore from backup media
To restore the server, use a good backup containing the system state or
the system state and system disk.
To restore from backup, you must log on locally to the domain
controller or Remote Desktop must be enabled on the remote domain
controller so that you can connect remotely. To enable Remote Desktop,
right-click My Computer, click Properties, and then click the Remote
tab.
Administrative credentials
To perform this procedure, you must provide the Administrator password
for Directory Services Restore Mode.
2.1 To restore from backup media
1. Start the computer in Directory Services Restore Mode.
2. To start the Windows Server 2003 backup utility, click Start, point
to AllPrograms, point to Accessories, point to System Tools, and then
click Backup.
This procedure provides steps for restoring from backup in Wizard Mode.
By default, the Always Start in Wizard Mode check box is selected in
the Backup or Restore Wizard. If the Welcome to the Backup Utility
Advanced Mode page appears, click Wizard Mode to open the Backup or
Restore Wizard.
3. On the Welcome to the Backup or Restore Wizard page, click Next.
4. Click Restore files and settings, and then click Next.
5. Select the files that you want to restore, and then click Next.
6. On the Completing the Backup or Restore Wizard page, click Advanced.
7. In Restore files to, click Original Location, and then click Next.
8. Click Leave existing files (Recommended), and then click Next.
9. In Advanced Restore Options, select the following check boxes, and
then click Next:
· Restore security settings
· Restore junction points, but not the folders and file data they
reference
· Preserve existing volume mount points
10. For a primary restore of SYSVOL, also select the following check
box: When restoring replicated data sets, mark the restored data as the
primary data for all replicas
A primary restore is required only if the domain controller that you
are restoring is the only domain controller in the domain. A primary
restore is required on the first domain controller that is being
restored in a domain if you are restoring the entire domain or forest.
11. Click Finish.
12. When the restore process is complete, click Close, and then do one
of the following:
If you do not need to authoritatively restore any objects, click Yes to
restart the computer. The system will restart and replicate any new
information that is received since the last backup with its replication
partners
If you need to authoritatively restore any objects or if you need to
create an LDAP Data Interchange Format (LDIF) file to restore
back-links on this domain controller, click No to remain in Directory
Services Restore Mode. For information about how to proceed with
authoritative restore, see the document performing an Authoritative
Restore of Active Directory Objects.
3. Mark the application partition as authoritative
Select which application partitions are to be marked authoritative in
order to have them replicated to other domain controllers. To perform
this procedure, you must use the document Restart the domain controller
in Directory Services Mode.
Administrative credentials
To perform this procedure, you must provide the Administrator password
for Directory Services Restore Mode.
3.1 To mark an application partition as authoritative
1. In Directory Services Restore Mode, open a Command Prompt.
2. Type the following command and then press ENTER:
ntdsutil
3. At the ntdsutil: prompt, type authoritative restore and press ENTER.
For assistance with the Ntdsutil command line-tool, type help at any
time.
4. Type List NC CRs and press ENTER.
NTDSUTIL will output a list of the application partitions that are
available after the restore, and the associated cross references. Note
the cross-reference distinguished name and application-partition
distinguished name that corresponds to the application partition you
wish to restore.
5. Type restore subtree App Partition DN, where App Partition DN is the
distinguished name of the application partition noted above.
6. Ntdsutil will provide a confirmation dialog. Click Yes to proceed.
The output message will indicate the status of the operation. There
should be no failures.
7. Type restore objectCross Ref DN (where Cross Ref DN is the
distinguished name of the application partition cross reference noted
above) and press ENTER.
8. Ntdsutil will provide a confirmation dialog. Click Yes to proceed.
The output message will indicate the status of the operation. There
should be no failures.
9. Quit the Ntdsutil tool.
APPENDICES
Appendix A: Appendix Title
Times New Roman 11pt font is used.
The preceding page uses a boxed title page to indicate where the
appendices begin. In documents with large appendices, a boxed title
page may be used to precede each appendix.
Appendix B: Document Control
Version History
Version Date Comments
0.1 Friday, 27 May 2005 First draft prepared by Robin McCluney based
on CGREP_L.DOT (3.1)
Document Distribution
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PC asset - directory - Word 6.0
