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Troubleshooting Event Ids 9518, 9175, and 454 at MS Exchange Startup
Home Computers & Technology Email
By: Axel Culver Email Article
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The Event Ids in Microsoft Exchange Server form most important parts of system diagnosis. These cryptic error messages allow the user to diagnose the logging problems. While there are various reasons for the occurrence of these event id, the most important is the corruption in the 'Information Store'. For easy resolution of any event id, the user can restore the database from an updated backup. However in case of absence of an updated backup, the user requires a powerful Exchange Server Repair software to repair the database.

As a practical case, your server locks up for no reason and when you reboot, the MS Exchange 2003 does not start. On viewing the event log, you view a series of event ids:

"Event Type: Error
Event Source: MSExchangeIS
Event Category: General
Event ID: 9518
Date: 6/7/2005
Time: 5:56:43 PM
User: N/A
Computer: CRC2K3
Error Log file is corrupt starting Storage Group
Exchange/CN=CityRealtyMail/CN=Administrative Groups/CN=First Administrative
Group/CN=Servers/CN=CRC2K3/CN=InformationStore/CN=First Storage Group on the
Microsoft Exchange Information Store.
Storage Group - Initialization of Jet failed.

Event Type: Error
Event Source: MSExchangeSA
Event Category: MAPI Session
Event ID: 9175
Date: 6/7/2005
Time: 6:07:09 PM
User: N/A
Computer: CRC2K3
The MAPI call 'OpenMsgStore' failed with the following error:
The Microsoft Exchange Server computer is not available. Either there are
network problems or the Microsoft Exchange Server computer is down for
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0526-00000000

Event Type: Error
Event Source: ESE
Event Category: Logging/Recovery
Event ID: 454
Date: 6/7/2005
Time: 5:56:43 PM
User: N/A
Computer: CRC2K3
Information Store (448) First Storage Group: Database recovery/restore
failed with unexpected error -501."

Next, when you try to mount the 'Mailbox' or 'Public Folder', you encounter the below error message:

"The database files in this store are corrupted"


The cause for the occurrence of the above error message is corruption of Exchange Server database.


To resolve the above error message and to repair the Exchange Server database, you have to use an effective Exchange Server Repair application. Such Exchange Repair Software employ extensive scanning techniques to repair and restore corrupt Exchange Server database.

Exchange Repair is an answer to all logically corrupted Exchange Server databases. With recovery of deleted mailboxes, the MS Exchange Repair application repairs databases created in Exchange Server 5.5, 2000, 2003, and 2007. The repaired EDB file is saved in a .pst file format.

Axel Culver has passion for writing Technical article. He is right now writing articles related to Product like MS Exchange Repair Tool and Microsoft Exchange Recovery software to repair edb file.

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