Se o banco de dados do servidor DHCP for danificado ou perdido, a recuperação será possível substituindo o arquivo de banco de dados de servidor (Dhcp.mdb), localizado na pasta %SystemRoot%\System32\Dhcp, com uma cópia de backup do mesmo arquivo.
Se o Gerenciador do DHCP tiver sido usado anteriormente para executar um backup, você poderá obter a cópia de backup do arquivo de banco de dados de servidor localizada na pasta %SystemRoot%\System32\Dhcp\Backup. É possível restaurar também o arquivo Dhcp.mdb de um backup de fita ou de outras mídias de backup.
Para executar esses procedimentos, é preciso ser membro do grupo Administradores ou ter recebido a autoridade apropriada.
Para restaurar uma cópia de backup do banco de dados do DHCP:
Clique em Iniciar, Todos os Programas, Acessórios, clique com o botão direito em Prompt de comando e, em seguida, clique em Executar como Administrador.
Digite net stop dhcpserver e pressione ENTER.
Digite md c:\olddhcp e pressione ENTER.
Digite move %SystemRoot%\system32\DHCP\*.* c:\olddhcp e pressione ENTER.
Digite del %SystemRoot%\system32\DHCP\Dhcp.md e pressione ENTER.
Digite copy %SystemRoot%\system32\dhcp\backup\jet\new\dhcp.mdb %SystemRoot%\system32\dhcp\dhcp.mdb e pressione ENTER.
Digite net start dhcpserver e pressione ENTER.
Target | Microsoft.Windows.DHCPServer.Library.Database | ||
Category | EventCollection | ||
Enabled | True | ||
Alert Generate | True | ||
Alert Severity | Warning | ||
Alert Priority | Normal | ||
Remotable | True | ||
Alert Message |
| ||
Event Log | System |
ID | Module Type | TypeId | RunAs |
---|---|---|---|
DS | DataSource | Microsoft.Windows.EventProvider | Microsoft.Windows.DHCPServer.Library.ActionAccount |
GenerateAlert | WriteAction | System.Health.GenerateAlert | Default |
WriteToDB | WriteAction | Microsoft.SystemCenter.CollectEvent | Default |
WriteToDW | WriteAction | Microsoft.SystemCenter.DataWarehouse.PublishEventData | Default |
<Rule ID="Microsoft.Windows.DHCPServer.Library.Database.DBIntegrity.Error.Rule" Enabled="true" Target="Microsoft.Windows.DHCPServer.Library.Database" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">
<Category>EventCollection</Category>
<DataSources>
<DataSource ID="DS" RunAs="Microsoft.Windows.DHCPServer.Library.ActionAccount" TypeID="Windows!Microsoft.Windows.EventProvider">
<ComputerName>$Target/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/PrincipalName$</ComputerName>
<LogName>System</LogName>
<Expression>
<And>
<Expression>
<Or>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">Microsoft-Windows-DHCP-Server</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">DHCPServer</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</Or>
</Expression>
<Expression>
<Or>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">1004</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">1021</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</Or>
</Expression>
</And>
</Expression>
</DataSource>
</DataSources>
<WriteActions>
<WriteAction ID="WriteToDB" TypeID="SC!Microsoft.SystemCenter.CollectEvent"/>
<WriteAction ID="WriteToDW" TypeID="SCDW!Microsoft.SystemCenter.DataWarehouse.PublishEventData"/>
<WriteAction ID="GenerateAlert" TypeID="Health!System.Health.GenerateAlert">
<Priority>1</Priority>
<Severity>1</Severity>
<AlertMessageId>$MPElement[Name="Microsoft.Windows.DHCPServer.Library.Database.DBIntegrity.Error.Rule.AlertMessage"]$</AlertMessageId>
<AlertParameters>
<AlertParameter1>$Data/EventDescription$</AlertParameter1>
</AlertParameters>
</WriteAction>
</WriteActions>
</Rule>