This event indicates that the Logical Disk Manager is unable to communicate with any dynamic disks, so the entire dynamic disk group goes offline.
The dynamic volumes will be unavailable for use until the problem is resolved.
This event is posted to the system log by Dmboot.sys. The system log might contain additional information from other storage drivers that indicates the cause of the failure.
Possible causes include:
A hardware failure that prevents communication with any dynamic disk (for example, a disk, controller, or cable failure).
Corruption of all dynamic disks.
Do one or more of the following to diagnose and resolve the problem:
If that does not work, check your hardware for any failures.
1. Use Disk Management to rescan the disks and then reactivate any failed disks or volumes.
2. Resynchronize or regenerate the volume as necessary if the disk was a member of a mirrored or RAID-5 volume.
3. Run chkdsk on any reactivated volumes.
Open the Disk Management snap-in and check the status of the dynamic disks. Identify the disks with Missing or Offline status. Use the Disk Management snap-in to reactivate the missing or offline disks. If that does not work, check your hardware for any failures.
Check Event Viewer for additional events from other storage drivers that might indicate the cause of the failure.
Check the status of the disks, controllers, cables, and other hardware.
After you have isolated and resolved the root problem, open the Disk Management snap-in and do the following:
1. Use Disk Management to rescan the disks and then reactivate any failed disks or volumes.
2. Resynchronize or regenerate the volume as necessary if the disk was a member of a mirrored or RAID-5 volume.
3. Run chkdsk on any reactivated volumes.
Sample Event:
Dmboot.sys Event ID: 5
dmboot: Disk group MyMachineDg0 failed. All volumes in the disk group are not available.
| Target | Microsoft.Windows.Client.2000.OperatingSystem | ||
| Category | EventCollection | ||
| Enabled | False | ||
| Event_ID | 5 | ||
| Event Source | dmboot | ||
| Alert Generate | True | ||
| Alert Severity | Warning | ||
| Alert Priority | Normal | ||
| Remotable | True | ||
| Alert Message |
| ||
| Event Log | System |
| ID | Module Type | TypeId | RunAs |
|---|---|---|---|
| EventDS | DataSource | Microsoft.Windows.EventProvider | Default |
| GenerateAlert | WriteAction | System.Health.GenerateAlert | Default |
Home
ENU <Rule ID="Microsoft.Windows.Client.2000.OperatingSystem.LDMDiskGroupFailed.Alert.MissionCritical" Enabled="false" Target="Microsoft.Windows.Client.2000.OperatingSystem">
<Category>EventCollection</Category>
<DataSources>
<DataSource ID="EventDS" TypeID="Windows!Microsoft.Windows.EventProvider">
<ComputerName>$Target/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>
<LogName>System</LogName>
<Expression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery>PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value>dmboot</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery>EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value>5</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</And>
</Expression>
</DataSource>
</DataSources>
<WriteActions>
<WriteAction ID="GenerateAlert" TypeID="SystemHealth!System.Health.GenerateAlert">
<Priority>1</Priority>
<Severity>1</Severity>
<AlertMessageId>$MPElement[Name="Microsoft.Windows.Client.2000.OperatingSystem.LDMDiskGroupFailed.Alert.AlertMessage"]$</AlertMessageId>
<AlertParameters>
<AlertParameter1>$Data/EventDescription$</AlertParameter1>
</AlertParameters>
<Suppression>
<SuppressionValue/>
</Suppression>
</WriteAction>
</WriteActions>
</Rule>