RE: Exchange restore on SBS2003 from SBS2000 backup

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Hello Roger,

Thank you for posting in the SBS newsgroup.

According to your description, I understand that you would like to restore
the Exchange database from the SBS 2000 backup to the SBS 2003 Server. If I
have misunderstood your concern, please don't hesitate to let me know.

If you have a good backup of the original Exchange information store in
case the original server is totally damaged, to restore the data back or
mount the edb file on a newly installed Exchange server, the following
essential naming scheme elements in your original organization must be the
same as your new one.

* The Exchange organization name.

* The name of the administrative group to which the database belongs.

* The name of the storage group to which the database belongs.

* The logical database name itself.

* The legacyExchangeDN value for the administrative group object that the
database currently belongs to.

For more information, please refer to the following link:
http://www.microsoft.com/technet/prodtechnol/exchange/2000/support/dbrecovr.
mspx

However, in case there is some differentiation, Legacydn.exe could help you
some.

Legacydn.exe is a tool that you can use to perform the following tasks:

- Change the Microsoft Exchange 2000 Server or Microsoft Exchange Server
2003 organization name.

- Change the administrative group names.

- View the legacyExchangeDN values.

- Change the legacyExchangeDN values.

Note We only support the use of the Legacydn tool in a lab environment. The
tool works only in a single domain controller environment.

For more information, please refer to:

324606 XADM: How to Use Legacydn.exe to Correct Exchange Organization or
Administrative Group Names
http://support.microsoft.com/?kbid=324606

293324 XADM: "C104173A" Error Message Occurs After You Restore the Database
http://support.microsoft.com/?id=293324

Furthermore, in case you have a good backup and meet the above
requirements, when you recover the database in the RSG, you could still not
recover the mailbox since the Exmerge file may not find the original user
referenced in the original mail store. Following error will occur:

Error! Cannot identify the user with the msExchMailboxGuid
\3C\C8\7D\D7\99\C3\FCL\B5\E3\FEUWa\D6F. The legacyExchangeDN is
/O=DOMAIN/OU=FIRST ADMINISTRATIVE GROUP/CN=RECIPIENTS/CN=USER.

This is because the exmerge utility cannot find referenced user in the AD.

In normal mail store, we could create a non-mail enabled user and connect
the orphan mailbox in storage via Mailbox Wizard. However, in the RSG, it
is not possible. We need to manually create new user and replace the
msExchMailboxGuid via ADSI.

In the Exmerge log, we may find filtered msExchMailboxGuid as
\3C\C8\7D\D7\99\C3\FCL\B5\E3\FEUWa\D6F

We may need to manually translate it to valid form via following rule

\3C\C8\7D\D7\99\C3\FCL\B5\E3\FEUWa\D6F -> will become separated with spaces
like this:

3C C8 7D D7 99 C3 FC L B5 E3 FE U W a D6 F -> we have to convert letters
L,U,W,a and F back to Hex using ASCII table (attached as below)

3C C8 7D D7 99 C3 FC 4C B5 E3 FE 55 57 61 D6 46 -> this is our recovered
msExchMailboxGuid

Then, the whole steps on the SBS server will be:

1. Logon SBS server as built-in administrator

2. Restore the exchange database file (*.edb, *.stm) to the SBS server

3. Run Exchange utility and make sure it is in the Clean state

4. Create a new Recover Storage Group

5. Add database to Recover and select the only database you find

6. Delete all files created in the new Recover storage Group folder. Copy
the backup edb and stm file to this folder and rename it as mentioned in
the recovery storage group database settings.

7. On the Database tab of the Mailbox Store Properties dialog box, verify
that the "This database can be overwritten by a restore" check box is
selected.

8. Mount the store.

9. Create new users

10. Modify the msExchMailboxGuid properties mentioned above via ADSI.

11. Run the Exmerge program and export it to a PST file.


I hope this helps. If you have any questions or concerns, please do not
hesitate to let me know. I am always happy to be of further assistance.

Best regards,

Nathan Liu (MSFT)
Microsoft CSS Online Newsgroup Support
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--------------------
>Thread-Topic: Exchange restore on SBS2003 from SBS2000 backup
>thread-index: AcV/0jJdCLAy6QtaSUu0/bqYTgbAEg==
>X-WBNR-Posting-Host: 71.112.119.141
>From: =?Utf-8?B?Um9nZXJv?= <Rogero@xxxxxxxxxxxxxxxxxxxxxxxxx>
>Subject: Exchange restore on SBS2003 from SBS2000 backup
>Date: Sun, 3 Jul 2005 06:22:01 -0700
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>
>Hello,
>The hard drive containing the OS on my SBS2000 server died. I have tape
>backup but I am not sure it the system state is included. Since I will
have
>to completely rebuild the server, could I build out a clean SBS2003
install
>and get my exchange db restored from the SBS2000 backup. Actually the
drive
>that had the Eschange files on it is still intact. If I build out a new
>installation of SBS2003, will I be able to associate the new users with
the
>old mailboxes in Exchange? Any help would be appreciated.
>
>Thanks
>--
>Roger Olson
>

.

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