Exchange 2003 Disaster Recovery

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					Microsoft Exchange Server 2003
Disaster Recovery

Microsoft Corporation
What we will cover:

    Preparing for disaster
    Best practices for backup of
     Exchange 2003
    Mailbox Recovery Center
    Recovery Storage Group
    Alternate Server Recovery
    Replacing a server
Prerequisite Knowledge

   Experience supporting Windows Servers
   Experience supporting Microsoft
    Exchange Server 2000 or 2003
   Experience supporting E-Mail clients

 Level 200
   Backup Best Practices
   Mailbox Recovery
   Recovering Stores
   Replacing an Exchange Server
   Alternate Server Recovery
Backup Best Practices
Backup Applications
   Windows Backup
       Integrates with Windows Server and
       Accesses Information Store directly
   Shadow Copy
       Speeds up backup
       New in Windows Server 2003
   Third party backup programs
Backup Best Practices
Implementing Backups
   Design and schedule backups
       Service level agreement
       Tape rotation
   Leave Circular Logging disabled
   Log file location
       Keep log files and databases on separate
Backup Best Practices
Types of Backup
Type        Recovery                       Backup
Full         One backup set                Large
             Fast                          Slow
Differential Last full backup + latest     Smaller
             differential                  Faster
Incremental Last full backup + all         Smallest
             subsequent incremental sets   Fastest
Backup Best Practices
Backing up the Metabase
   Exchange requires IIS to function
       Backup of IIS configuration is critical
   Backup with IIS Manager console
       Within IIS MMC
   Backup with iisback.vbs script
       Csript \%SystemRoot%\system32\iisback.vbs

Backup Best Practices
Planning Best Practices
   Write out and follow backup procedure
       What to backup and how often
   Keep alternate hardware on hand
   Run a trial restoration periodically
   Backup Active Directory
Backup Best Practices
Design Best Practices
   Store log files and Information Store on
    separate physical drives.
   Keep Information Store volume under 50%
       Speeds restore process
       Copy damaged database before restore
   Increase message and mailbox retention
Backup Best Practices
Backing up Exchange with Windows Backup
Backing up the metabase
Other preparations (item retention settings)
   Backup Best Practices
   Mailbox Recovery
   Recovering Stores
   Replacing an Exchange Server
   Alternate Server Recovery
Mailbox Recovery
Deleted Mailbox Retention
   Mailbox Recovery Center
       New in Exchange 2003
       Quickly recovers deleted mailboxes
   “Retain until backed up” setting
   Time limit set in System Manager
       As resources allow
Mailbox Recovery
Recovering Deleted Items
   Deleted Items folder
   Recovery Storage Group
   Alternate Server Recovery
   Exmerge
   Brick Level Backups
Mailbox Recovery
Recovery Storage Group
   Recovers mailboxes, mailbox stores, and
    items (not public folders)
   Prior Versions: Alternate Server
   No downtime
   No additional hardware
   Differs from Storage Group
       MAPI the only protocol
       ExMerge the only access to contents
       Databases do not mount automatically
Mailbox Recovery
RSG and Active Directory
    Exchange Server        Active Directory
      Storage group
    Mailbox database             Users
         Mailbox                 User 1
       GUID Attribute
                             GUID Attribute

  Recovery Storage Group
   Recovery Database
    Recovery Mailbox
       GUID Attribute
Mailbox Recovery
PST/OST Restore Method
   To recover an entire mailbox
   Laptop or Client computer not yet
    synchronized to Exchange server
   Create a PST of the mailbox named
   Recreate the mailbox on the server
   Use Exmerge
Mailbox Recovery
   Import/Export tool for Exchange stores
   Updated for Exchange 2003
   Download separately from
   User rights
Mailbox Recovery
Alternate Server Recovery
   Mailbox no longer exists in mailbox store
   Deleted mailbox retention period has
   Nearly identical server hardware in a
    different AD forest
   Restore from a backup, then use ExMerge
    to create .pst file
   Recreate the mailbox on the original
   Use Exmerge to import
Mailbox Recovery
Brick Level Backups
   Allows for direct backup and recovery of
    individual mailboxes
   Third party applications
   Slower backup/recovery
   Bloats backup and mailbox store

Recovering items and Mailboxes

•Mailbox Recovery Center
•Restoring items from Recovery Storage
   Backup Best Practices
   Mailbox Recovery
   Recovering Stores
   Replacing an Exchange Server
   Alternate Server Recovery
Recovering Stores
   Recovery Storage Group
       Exchange 2000 SP3 or later
       Dial-tone method
   Alternate Server Recovery
       Public Folders
       Damaged hardware
       Separate Active Directory forest
   Transaction Logs
Recovering Stores
Dial-Tone Method
   Purpose: to minimize user downtime
    when recovering from a backup
   Example situation: Corrupted Mailbox
   Exchange features used
       Recovery Storage Group
       Exmerge 2003
       Mailbox Store re-creation
Recovering Stores
Using Dial-Tone Method
   Recent backup
       Incremental or differential plus full
   Cumulative transaction log files
       Improve recovery quality
   Recovery Storage Group
Recovering Stores
Dial-Tone Method: 4 Steps

      RSG                Database

Recovering Mailbox Stores Using
the Dial-Tone Method
•Recovery Storage Group
•Restored from backup
•Finalize dial-tone restore
   Backup Best Practices
   Mailbox Recovery
   Recovering Stores
   Replacing an Exchange Server
   Alternate Server Recovery
Replacing an Exchange Server
   Nearly Identical Hardware/OS
   Exchange Media
   Recent Backup
   Active Directory in place
Replacing an Exchange Server
Processes Used
   System State restore
       Active Directory
       Registry
       Exchange Settings
   \disasterrecovery Exchange install
   Information Store Restore
       Transaction Logs
Replacing an Exchange Server
   Install Server
   Perform System State restore
   Install Exchange
   Restore Information Store

Replacing an Exchange Server
•Setting up for Alternate Server Recovery
•Restoring the database
   Backup Best Practices
   Mailbox Recovery
   Recovering Stores
   Replacing an Exchange Server
   Alternate Server Recovery
Alternate Server Recovery
When to perform
   Public folder
   Mailbox deleted and purged
       Can not use Recovery Storage Group
   Physical damage
       Hardware failure
       Site damage
Alternate Server Recovery
   Backup of Information Store
   Windows Server and Exchange
   Hardware
   Time
Alternate Server Recovery
Settings That Must be Identical
   Organization name
   Administrative Group name
   Storage group name
   Database
   LegacyExchangeDN
Alternate Server Recovery
Active Directory and LDIFDE
   LDIFDE imports and exports Active
    Directory entries
   Other tools available
   Used to check LegacyExchangeDN and to
    recreate AD entries.
Alternate Server Recovery
Disaster Recovery Features
    Install Windows Server and Exchange
    Match names
    Restore the Windows backup set made
     on the server being rebuilt
    Recreate Active Directory
    Export items from the database

Alternate Server Recovery
•Setting up for Alternate Server Recovery
•Restoring the database
Session Summary
   Preparing for Disaster:
       Use best practices for backup
   Use the Recovery Storage Group
       To Recover Mailboxes
       To Recover Stores
   Use Exmerge to recovery data from recovered
    servers or PST/OSTs
   Remember alternate server recovery
For More Information…

   Main TechNet Web site at
   Additional resources to support this
    Session page can be found at
For More Information…
   Exchange Web Site

   Windows Server 2003 Web Site
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