Gérer les services et les paramètres réseau avec le fournisseur WMI
S’applique à : 
SQL Server 2022 (16.x)
Le fournisseur WMI est une interface publiée utilisée par microsoft Management Console (MMC) pour gérer les services et protocoles réseau SQL Server. Dans SMO, l’objet ManagedComputer représente le fournisseur WMI.
L’objet ManagedComputer fonctionne indépendamment de la connexion établie avec l’objet Server à une instance de SQL Server et utilise les informations d’identification Windows pour se connecter au service WMI.
Exemples
Pour utiliser un exemple de code fourni, choisissez l’environnement de programmation, le modèle et le langage dans lesquels créer votre application. Pour plus d’informations, consultez Comment créer un projet SMO Visual C# dans Visual Studio .NET.
Pour les programmes qui utilisent le fournisseur WMI SQL Server, vous devez inclure l’instruction Imports pour qualifier l’espace de noms WMI. Insérez l'instruction après les autres instructions Imports, avant toute autre déclaration dans l'application, par exemple :
Imports Microsoft.SqlServer.Management.Smo
Imports Microsoft.SqlServer.Management.Common
Imports Microsoft.SqlServer.Management.Smo.Wmi
Arrêter et redémarrer le service SQL Server en Visual Basic
Cet exemple de code montre comment arrêter et redémarrer les services en utilisant l'objet SMO ManagedComputer. Cela fournit une interface au fournisseur WMI pour Configuration Management.
'Declare and create an instance of the ManagedComputer object that represents the WMI provider services.
Dim mc As ManagedComputer
mc = New ManagedComputer()
'Iterate through each service registered with the WMI provider.
Dim svc As Service
For Each svc In mc.Services
Console.WriteLine(svc.Name)
Next
'Reference the SQL Server service.
svc = mc.Services("MSSQLSERVER")
'Stop the service if it is running and report on the status continuously until it has stopped.
If svc.ServiceState = ServiceState.Running Then
svc.Stop()
Console.WriteLine(String.Format("{0} service state is {1}", svc.Name, svc.ServiceState))
Do Until String.Format("{0}", svc.ServiceState) = "Stopped"
Console.WriteLine(String.Format("{0}", svc.ServiceState))
svc.Refresh()
Loop
Console.WriteLine(String.Format("{0} service state is {1}", svc.Name, svc.ServiceState))
'Start the service and report on the status continuously until it has started.
svc.Start()
Do Until String.Format("{0}", svc.ServiceState) = "Running"
Console.WriteLine(String.Format("{0}", svc.ServiceState))
svc.Refresh()
Loop
Console.WriteLine(String.Format("{0} service state is {1}", svc.Name, svc.ServiceState))
Else
Console.WriteLine("SQL Server service is not running.")
End If
Activer un protocole serveur à l’aide d’une chaîne URN en Visual Basic
L’exemple de code montre comment identifier un protocole serveur à l’aide d’un objet URN, puis activer le protocole.
'This program must run with administrator privileges.
'Declare the ManagedComputer WMI interface.
Dim mc As New ManagedComputer()
'Create a URN object that represents the TCP server protocol.
Dim u As New Urn("ManagedComputer[@Name='V-ROBMA3']/ServerInstance[@Name='MSSQLSERVER']/ServerProtocol[@Name='Tcp']")
'Declare the serverProtocol variable and return the ServerProtocol object.
Dim sp As ServerProtocol
sp = mc.GetSmoObject(u)
'Enable the protocol.
sp.IsEnabled = True
'propagate back to the service
sp.Alter()
Activer un protocole serveur à l’aide d’une chaîne URN dans PowerShell
L’exemple de code montre comment identifier un protocole serveur à l’aide d’un objet URN, puis activer le protocole.
#This example shows how to identify a server protocol using a URN object, and then enable the protocol
#This program must run with administrator privileges.
#Load the assembly containing the classes used in this example
[reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.SqlWmiManagement")
#Get a managed computer instance
$mc = New-Object -TypeName Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer
#Create a URN object that represents the TCP server protocol
#Change 'MyPC' to the name of the your computer
$urn = New-Object -TypeName Microsoft.SqlServer.Management.Sdk.Sfc.Urn -argumentlist "ManagedComputer[@Name='MyPC']/ServerInstance[@Name='MSSQLSERVER']/ServerProtocol[@Name='Tcp']"
#Get the protocol object
$sp = $mc.GetSmoObject($urn)
#enable the protocol on the object
$sp.IsEnabled = $true
#propagate back to actual service
$sp.Alter()
Démarrer et arrêter un service en C#
Cet exemple de code montre comment arrêter et démarrer une instance ed SQL Server.
//Declare and create an instance of the ManagedComputer
//object that represents the WMI provider services.
ManagedComputer mc;
mc = new ManagedComputer();
//Iterate through each service registered with the WMI provider.
foreach (Service svc in mc.Services)
{
Console.WriteLine(svc.Name);
}
//Reference the SQL Server service.
Service mySvc = mc.Services["MSSQLSERVER"];
//Stop the service if it is running and report on the status
// continuously until it has stopped.
if (mySvc.ServiceState == ServiceState.Running)
{
mySvc.Stop();
Console.WriteLine(string.Format("{0} service state is {1}", mySvc.Name, mySvc.ServiceState));
while (!(string.Format("{0}", mySvc.ServiceState) == "Stopped"))
{
Console.WriteLine(string.Format("{0}", mySvc.ServiceState));
mySvc.Refresh();
}
Console.WriteLine(string.Format("{0} service state is {1}", mySvc.Name, mySvc.ServiceState));
//Start the service and report on the status continuously
//until it has started.
mySvc.Start();
while (!(string.Format("{0}", mySvc.ServiceState) == "Running"))
{
Console.WriteLine(string.Format("{0}", mySvc.ServiceState));
mySvc.Refresh();
}
Console.WriteLine(string.Format("{0} service state is {1}", mySvc.Name, mySvc.ServiceState));
Console.ReadLine();
}
else
{
Console.WriteLine("SQL Server service is not running.");
Console.ReadLine();
}
Démarrer et arrêter un service dans PowerShell
Cet exemple de code montre comment arrêter et démarrer une instance ed SQL Server.
#Load the assembly containing the objects used in this example
[reflection.assembly]::LoadWithPartialName("Microsoft.SqlServer.SqlWmiManagement")
#Get a managed computer instance
$mc = New-Object -TypeName Microsoft.SqlServer.Management.Smo.Wmi.ManagedComputer
#List out all SQL Server instances running on this mc
foreach ($Item in $mc.Services) { $Item.Name }
#Get the default SQL Server database engine service
$svc = $mc.Services["MSSQLSERVER"]
# for stopping and starting services PowerShell must run as administrator
#Stop this service
$svc.Stop()
$svc.Refresh()
while ($svc.ServiceState -ne "Stopped") {
$svc.Refresh()
$svc.ServiceState
}
"Service" + $svc.Name + " is now stopped"
"Starting " + $svc.Name
$svc.Start()
$svc.Refresh()
while ($svc.ServiceState -ne "Running") {
$svc.Refresh()
$svc.ServiceState
}
$svc.ServiceState
"Service" + $svc.Name + "is now started"