Event ID - 9518

Event Id9518
SourceMSExchangeIS
DescriptionDescription:
1.
Error 0xfffffbf8 starting Storage Group /DC=COM/DC=DOMAIN/DC=EXTEST/DC=ORGANIZATION/CN=CONFIGURATION/CN=SERVICES/CN=DOMAIN EXCHANGE/CN=ORGANIZATION/CN=ADMINISTRATIVE GROUPS/CN=FIRST ADMINISTRATIVE GROUP/CN=SERVERS/CN=EXSERVER1/CN=INFORMATIONSTORE/CN=FIRST STORAGE GROUP on the Microsoft Exchange Information Store.
2.Error code -2147221232 returned from virus scanner initialization routine. Virus scanner was not loaded.
Event InformationAccording to Microsoft:
CAUSE 1:

This behavior can occur if the permissions on the folder that contain the files for the information stores are not sufficient for the stores to function properly.
RESOLUTION :
To resolve this behavior, perform the following steps:
1. Change the permissions on the folders that contain the information store files to the following defaults:
Administrators: Full Control
Authenticated Users: Read and Execute, List Folder Contents, Read
Creator Owner: None
Server Operators: All except Full Control
System: Full Control
NOTE: You can determine the location of the information store files. To do so, right-click the first storage group object or the mailbox store and public store objects, and then click Properties in Exchange System Manager. For the first storage group object, the locations are on the General tab. From the mailbox store and public store objects, the locations are on the Database tab.
To locate the permissions right-click the folder, click Properties, and then click the Security tab in Microsoft Windows Explorer. If the Allow inheritable permissions from parent to propagate to this object check box is selected, it may be necessary to verify the parent folder permissions.
2. Restart the Microsoft Exchange Information Store service from the Services snap-in or the Computer Management snap-in.
3. From the Exchange System Manager, mount the stores which are affected. To do so, right-click the stores, and then click Mount Store.

Cause 2:
The description string that should identify the Storage Group contains malformed-characters.
For example: Error 0x8004010f starting Storage Group **$%%##@__!(( on the Microsoft Exchange Information Store
This may be because of any of the following reasons:
If there is a failure starting an Exchange 2000 Storage Group.
If all databases in a Storage Group are offline.
If there
Reference LinksID No: c1041724" Error Message and Event ID 9518 When You Try to Mount the Mailbox or the Public Store

Cannot Mount Mailbox or Public Store and Event ID 9518 Occurs The Information Store service does not start after you upgrade to Exchange Server 2003

XADM: You Cannot Log On to an Exchange 2000 Server Computer and Event ID 490, 9518 and 8197 Messages Are Logged

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