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Recovery Manager for AD Forest Edition 10.3.1 - User Guide

Overview Getting started
Permissions required to use Recovery Manager for Active Directory Recovery Manager Console Getting and using help Configuring Windows Firewall Using Computer Collections Hybrid Recovery with On Demand Recovery Managing Recovery Manager for Active Directory configuration Licensing
Backing up data
Permissions required for the Backup operation Managing Backup Agent Using a least-privileged user account to back up data Using Managed Service Accounts Active Directory backups vs Windows System State backups Creating BMR and Active Directory backups Using the Backup Wizard Retrying backup creation Enabling backup encryption Backing up AD LDS (ADAM) Backing up cross-domain group membership Backing up distributed file system (DFS) data Backup scheduling Setting performance options Setting advanced backup options Using Forest Recovery Agent Unpacking backups Using e-mail notification Viewing backup creation results
Restoring data
Getting started with Active Directory recovery Managing deleted or recycled objects Restoring backed up Active Directory components Integration with Change Auditor for Active Directory Using granular online restore Restoring AD LDS (ADAM) Selectively restoring Active Directory object attributes Restoring objects in an application directory partition Restoring object quotas Restoring cross-domain group membership Performing a restore without having administrator privileges Reports about objects and operations Using complete offline restore Offline restore implications Restoring SYSVOL authoritatively Performing a granular restore of SYSVOL Recovering Group Policy Restoring data from third-party backups Using the Extract Wizard Restoring passwords and SID history
Full Replication Consolidating backup registration data Recovering an Active Directory forest
Forest recovery overview Deploying Recovery Manager for Active Directory Forest Edition (Disaster Recovery Edition) Permissions required to use Forest Recovery Console Forest Recovery Console Managing a recovery project Recovery methods Phased recovery Managing Forest Recovery Agent Rebooting domain controllers manually Resetting DSRM Administrator Password Purging Kerberos Tickets Managing the Global Catalog servers Managing FSMO roles Manage DNS Client Settings Configuring Windows Firewall Developing a custom forest recovery plan Backing up domain controllers Assigning a preferred DNS server during recovery Handling DNS servers during recovery Forest recovery approaches Deciding which backups to use Running custom scripts while recovering a forest Overview of steps to recover a forest Viewing forest recovery progress Viewing recovery plan Viewing a report about forest recovery or verify settings operation Handling failed domain controllers Adding a domain controller to a running recovery operation Selectively recovering domains in a forest Recovering SYSVOL Deleting domains during recovery Resuming an interrupted forest recovery Recovering read-only domain controllers (RODCs) Checking forest health Collecting diagnostic data for technical support
Using Management Shell Appendices
Frequently asked questions Best practices for using Computer Collections Technical characteristics Best practices for creating backups Best practices for creating backups for forest recovery Best practices for recovering a forest Descriptions of recovery or verification steps Ports Used by Recovery Manager for Active Directory Forest Edition (Disaster Recovery Edition) Backup Wizard Online Restore Wizard Online Restore Wizard for AD LDS (ADAM) Group Policy Restore Wizard Repair Wizard Extract Wizard Events generated by Recovery Manager for Active Directory

Typical backup creation times

The backup creation time depends on the Active Directory database size (NTDS.dit file) and the compression method Backup Agent uses when processing NTDS.dit. You can specify the compression method on the Performance tab in the Computer Collection Properties dialog box. For more information, refer to the User Guide supplied with this release of RMAD.

The following table illustrates the typical backup creation times for different compression methods. This table has been obtained for the following configuration:

  • The NTDS.dit file size: 3.14 GB

  • The RMAD computer hardware: CPU 2x Intel® Xeon® 2.8 Hz; RAM 1 GB

Compression method Backup file size Backup creation time (min:sec)
None 3.17 GB 09:07
Fast 1.27 GB 07:35
Normal 1.22 GB 08:27
Maximum 1.2 GB 17:54

 

Recommendations

The backup creation times for your Active Directory® database may vary based on size of the database and a number of other factors including the hardware on the domain controller and how densely the Active Directory® database is populated. You can use the examples above as a guide in determining how long it will take to backup your own Active Directory® database, but keep in mind that these times are not directly related to the size of the database (i.e. a 6 GB database may not take exactly twice as long to backup as a 3 GB database). The best way to determine what to expect for backup times in your own environment is to create a backup of a production domain controller.

Compression ratios can vary depending on how densely populated the Active Directory® database is, but typically using a higher compression method has diminishing returns in terms of the final compressed size of the backup. To ensure both a reasonable backup time and a reasonable compressed backup size it is recommended to use either Fast or Normal compression.

 

Typical times to unpack backups

Before using a packed backup file (e.g. in the Online Restore Wizard), RMAD must unpack it.

The following table illustrates the typical times required to unpack backups.

Note

You can manage the creation of the unpacked backups using the Unpacked Backups tab in the Recovery Manager for Active Directory Settings dialog box. You can also have the Online Restore Wizard or Group Policy Restore Wizard keep unpacked backups for future use. For more information, refer to the User Guide supplied with this release.

Typical times to unpack backups

Compression method Packed backup file size Backup unpacking time (min:sec)
None 3.17 GB 01:57
Fast 1.27 GB 01:29
Normal 1.22 GB 01:25
Maximum 1.2 GB 01:22

 

Typical sizes of databases

Configuration database files

Recovery Manager for Active Directory employs the following database files (.mdb):

  • Rmad.db3. RMAD configuration database. It contains information on the console configuration, such as the managed Computer Collections, backup creation sessions, etc.

  • Backups.mdb. RMAD backup registration database. It contains information on the registered Active Directory and AD LDS (ADAM) backups.

As a rule, the file size for .mdb files does not exceed 10 MB.

Note

The database files are stored in the folder %AllUsersProfile%\Quest\Recovery Manager for Active Directory.

 

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