问题
I have written a Windows service to collect information from all of our SQL servers. The service gets installed onto each server, and utilizing WMI and SMO, inserts relevant system information back to a central database. In order to get the SQL information, I use the following c# code:
List<Server> sqlServers = new List<Server>(); //List of Smo.Server objects
string registrySubKey = @"SOFTWARE\Microsoft\Microsoft SQL Server";
string registryValue = "InstalledInstances";
try
{
RegistryKey rk = Registry.LocalMachine.OpenSubKey(registrySubKey);
string[] instances = (string[])rk.GetValue(registryValue);
if (instances.Length > 0)
{
foreach (string element in instances)
{
Server s;
string serverInstance;
if (element == "MSSQLSERVER") //If default instance
{
serverInstance = System.Environment.MachineName;
}
else
{
serverInstance = System.Environment.MachineName + @"\" + element;
}
s = new Server(serverInstance);
if (s != null)
{
sqlServers.Add(s);
}
}
}
}
The only problem I'm having is on our SQL clusters.
For those of you unfamiliar with active/passive sql clustering, you cannot connect directly to one of the nodes. Instead the sql cluster gets a virtual name and another ip address that clients would then connect to.
The current code I have will try to connect to NodeName\instanceName which obviously will not work on the cluster. Instead I need to programmatically find the SQL cluster virtual name that this node belongs to and connect to that instead.
I thought I might be able to get this information from the MSCluster_Cluster WMI class, but that will only get me the cluster virtual name, not the SQL cluster virtual name.
回答1:
With this code:
using System.Management;
ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\MSCluster", "SELECT * FROM MSCluster_Resource");
foreach (ManagementObject queryObj in searcher.Get())
{
Console.WriteLine("Name: {0}", queryObj["Name"]);
}
I can see my SQL Cluster Name (2008CLUSTERSQL
) as two of the outputs:
Name: SQL IP Address i (2008CLUSTERSQL
)
Name: SQL Network Name (2008CLUSTERSQL
)
Will this help? I guess you can extract the name of out it?
I got this code from WMI Code Creator (http://www.microsoft.com/downloads/details.aspx?FamilyID=2cc30a64-ea15-4661-8da4-55bbc145c30e&displaylang=en), a very useful tool to browse different WMI namespaces/classes/properties.
回答2:
Could you use a WMI query with the mscluster WMI classes?
http://technet.microsoft.com/en-us/library/cc780572(WS.10).aspx http://blogs.msdn.com/clustering/archive/2008/01/08/7024031.aspx
By query I mean interrogate all the cluster's resources/groups to locate the SQL Server network name.
来源:https://stackoverflow.com/questions/2192544/programmatically-getting-sql-cluster-virtual-name