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Exchange database corruption problem, calendaring agent failed with error code 0xfffffa84

Posted on 2008-11-04
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Last Modified: 2010-04-21
Hi all, we had an sbs server fail due to bad disk problems, the mail database has been copied off (entire MDBDATA dir) and now is mounted in a new server with same domain and DC name etc.
The priv1.edb and pub1.edb were both repaired successfully, and are now mounted.
the priv1.edb fails an offline defrag due to "1605 0xFFFFF9BB  JET_errKeyDuplicate Illegal duplicate key"
I have tried to exmerge user mailboxes out of the database, but each one succeeds with an 80kb pst only. The integrity check on priv1 results in a clean state.
When connecting an outlook to the mail server, all looks good, it shows the correct folder list etc, but no emails or contacts or calendar entries, just sits there waiting to update folders.
OWA opens fine but has the same waiting to update.
Any ideas?
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Question by:Tingathewinga
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tenaj-207 earned 1500 total points
ID: 22884248
I have bad news for you.  Your database is corrupted. http://forums.msexchange.org/m_120054600/mpage_1/key_/tm.htm#1800479100

I would try to use OnTrack PowerControls to recover any data from the EDB files, but it's not cheap.
http://www.ontrackpowercontrols.com/

Or send it into a repair shop, also not cheap.
http://www.dtidata.com/exchange_recovery/JET_errKeyDuplicate_Illegal_duplicate_key.htm
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by:Tingathewinga
ID: 22889379
Hi Tenaj, thanks for that, we have now purchased software called OnTrack, this has allowed us to retrieve almost all of the missing mail, fantastic piece of software.
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by:Tingathewinga
ID: 31513363
We already knew the database was corrupted, but really wanted to see if anyone had a non 3rd party fix, we decided to just buy some software and this sorted out our problem well. Thanks for your input.
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Expert Comment

by:tenaj-207
ID: 22889425
Glad to hear it's working for you.  It's well worth the investment.  I've saved about a dozen client EDB's with it.
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