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Disaster Recovery

Posted on 2007-11-19
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1)Database and Transaction logs on different drives, it has failed due to some reasons, now i have last night  online back up available, now how to recovery?
2)We had Exchange 2000 server running on a member server. Last night two hard drives in the RAID 5 got corrupted. The only possible way now is to rebuild the server. We have the full backup of yesterday night. What are the steps which we need to do to build the server again so that we will be able to restore the backup and users will start accessing there mailboxes without doing any change in configuration in the outlook at there end.
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Question by:ayekula
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rakeshmiglani earned 200 total points
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by:SteveH_UK
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Hi,

I've done this before and its never much fun.  Hope you have some success.  You can read about it in  the Microsoft document linked at the following location:

   http://www.microsoft.com/technet/prodtechnol/exchange/2000/library/disrec00.mspx

There is also a good step-by-step at the following location:

   http://www.msexchange.org/tutorials/Disaster_Recovery.html

The basic steps are:

(1)  Install a baseline Windows Server 2000 machine into which you can restore your file system and system state backups.  Consult your backup software documentation for more on this.  You may have to use particular directories to install Windows and to restore to.  You will certainly need the same disk layout, and you may need a set of patches.

(2)  Restore application and system files, and then system state --- now you have an incomplete, but mostly working system with its original settings

(3)  Reinstall Exchange 2000 in Disaster Recovery mode

(4)  Restore Exchange databases and log files

The steps you actually take will be dictated in part by both your hardware and your backup platform.

BEFORE YOU DO ANYTHING, MAKE SURE YOUR BACKUP TAPES ARE READ-ONLY, IF SUPPORTED!

Good luck,

Steve
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by:ayekula
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Can any one comment on my First question.
(1)Database and Transaction logs on different drives, it has failed due to some reasons, now i have last night  online back up avilable, now how to recovery?
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by:rakeshmiglani
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are point 1 and 2 not related?
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by:SteveH_UK
SteveH_UK earned 300 total points
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If (1) is a separate question, you need to mark the storage group and databases in Exchange System Manager for recovery.  Since the logs were also damaged, you should recover the entire storage group,

So,

(1)  mark storage group and databases for restore in ESM
(2)  shut down Information Store service (ideally)
(2)  restore databases into exisitng folders
(3)  restart Information Store service
(4)  clear the checkbox so that you can't restore over the databases in ESM

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by:SteveH_UK
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You should also check the Event Log for any other warnings from Exchange.  It will also give feedback on the database recovery...
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by:ayekula
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hi,
1) questions is different from (2) one
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by:SteveH_UK
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The Microsoft article http://support.microsoft.com/kb/258243/EN-US/ provides full information on the restoration of an individual Exchange Server database
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