A page has the object/index ID specified but is not allocated by any of that index's IAM pages. The page has an incorrect object/index ID in its header, so there will be a matching 2533 (page not seen although allocated) error for the page. The 2533 error corresponds to the index the page is really allocated to.
HARDWARE FAILURE
Run hardware diagnostics and correct any problems. Also examine the Microsoft® Windows NT® system and application logs and the SQL Server™ error log to see if the error occurred as the result of hardware failure. Fix any hardware-related problems.
If you have persistent data corruption problems, try to swap out different hardware components to isolate the problem. Check to ensure that your system does not have write caching enabled on the disk controller. If you suspect this to be the case, contact your hardware vendor.
Finally, you might find it beneficial to switch to a completely new hardware system, including reformatting the disk drives and reinstalling the operating system.
RESTORE FROM BACKUP
If the problem is not hardware related and a known clean backup is available, restore the database from the backup.
DBCC CHECKDB
If no clean backup is available, execute DBCC CHECKDB without a repair clause to determine the extent of the corruption. DBCC CHECKDB will recommend a repair clause to use. Then, execute DBCC CHECKDB with the appropriate repair clause to repair the corruption.
CAUTION: If you are unsure what effect DBCC CHECKDB with a repair clause has on your data, contact your primary support provider before executing this statement.
If running DBCC CHECKDB with one of the repair clauses does not correct the problem, contact your primary support provider.
Performing a repair will rebuild the index (if any). Note that the repair for the matching 2533 error is to de-allocate the page before the rebuild.
CAUTION: This repair may cause data loss.
If running DBCC CHECKDB with one of the repair clauses does not correct the problem, contact your primary support provider.
Target | Microsoft.SQLServer.2008.DBEngine | ||
Category | EventCollection | ||
Enabled | True | ||
Event_ID | 2534 | ||
Event Source | $Target/Property[Type="SQL!Microsoft.SQLServer.DBEngine"]/ServiceName$ | ||
Alert Generate | True | ||
Alert Severity | Warning | ||
Alert Priority | Normal | ||
Remotable | True | ||
Alert Message |
| ||
Event Log | Application | ||
Comment | Mom2008ID='{8E0F684B-B3A6-4655-91B9-BC49707A3D5B}';MOM2008GroupID={467ECC75-C5DA-42BD-955C-A73BBB51AF74} |
ID | Module Type | TypeId | RunAs |
---|---|---|---|
_F6DA1507_12AF_11D3_AB21_00A0C98620CE_ | DataSource | Microsoft.Windows.EventProvider | Default |
GenerateAlert | WriteAction | System.Health.GenerateAlert | Default |
<Rule ID="Microsoft.SQLServer.2008.Table_error__Page_in_its_header_is_allocated_by_another_object_1_5_Rule" Target="SQL2008Core!Microsoft.SQLServer.2008.DBEngine" Enabled="true" ConfirmDelivery="true" Remotable="true" Comment="Mom2008ID='{8E0F684B-B3A6-4655-91B9-BC49707A3D5B}';MOM2008GroupID={467ECC75-C5DA-42BD-955C-A73BBB51AF74}">
<Category>EventCollection</Category>
<DataSources>
<DataSource ID="_F6DA1507_12AF_11D3_AB21_00A0C98620CE_" Comment="{F6DA1507-12AF-11D3-AB21-00A0C98620CE}" TypeID="Windows!Microsoft.Windows.EventProvider">
<ComputerName>$Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>
<LogName>Application</LogName>
<Expression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery>PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value>$Target/Property[Type="SQL!Microsoft.SQLServer.DBEngine"]/ServiceName$</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery>EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value>2534</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</And>
</Expression>
</DataSource>
</DataSources>
<WriteActions>
<WriteAction ID="GenerateAlert" TypeID="SystemHealth!System.Health.GenerateAlert">
<Priority>1</Priority>
<Severity>1</Severity>
<AlertMessageId>$MPElement[Name="Microsoft.SQLServer.2008.Table_error__Page_in_its_header_is_allocated_by_another_object_1_5_Rule.AlertMessage"]$</AlertMessageId>
<AlertParameters>
<AlertParameter1>$Data/EventDescription$</AlertParameter1>
</AlertParameters>
<Suppression>
<SuppressionValue/>
</Suppression>
</WriteAction>
</WriteActions>
</Rule>