Determining if a server is clustered or stand-alone

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Determining if a server is clustered or stand-alone

Colleen M. Morrow

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Points: 2457
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September 27, 2011 at 2:14 pm

#390488

I'm in the process of writing a powershell script to inventory my SQL Server environment. In collecting the server information, I'd like to grab the physical hostnames that make up any clustered environments. I know I can use
$nodes=get-clusternode -Cluster SERVERNAME |select name
to get the physical servers in the cluster, but if I run that on a non-clustered server, I get an error, obviously. So, can someone recommend a good way to determine whether the SERVERNAME I've connected to is a cluster resource group or a physical stand-alone server?

Colleen M. Morrow
Cleveland DBA

Viewing 8 posts - 1 through 7 (of 7 total)

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Lowell SSC Guru Points: 323518 More actions · Answer 1

colleen i know that via TSQL you can get the serverproperty:

would that help?

SELECT 'IsClustered', SERVERPROPERTY('IsClustered')

Lowell

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Johan Bijnens SSC Guru Points: 135369 More actions · Answer 2

this may be to primitive but you could just use a try catch block to try get-cluster or get-clusternode and have the catch block handle stand-alone servers.

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Colleen M. Morrow SSCrazy Points: 2457 More actions · Answer 3

Thanks for the ideas. I think I've got a solution that works:

$s=Get-WMIObject -query "select * from Win32_ComputerSystem" -ComputerName $server | select name

if ($s -ne $server) {

Write-Output "$server is clustered"

} else {

Write-Output "$server is not clustered"

}

Colleen

Colleen M. Morrow
Cleveland DBA

bruce 1565 SSCrazy Points: 2574 More actions · Answer 4

Another option is to look for the cluster service

$s = Get-WmiObject -Class Win32_SystemServices -ComputerName $server

if ($s | select PartComponent | where {$_ -like "*ClusSvc*"}) { Write-Output "$server is Clustered" }

else { Write-Output "$server is Not clustered" }

mendesm Ten Centuries Points: 1074 More actions · Answer 5

$s = New-Object Microsoft.SqlServer.Management.Smo.Server("$instancename");

$s.IsClustered; # returns $true/$false accordingly.

jgogel SSC Veteran Points: 220 More actions · Answer 6

Thanks all - this helped me keep my application event log clean.

bool isClustered = false;

ManagementObjectSearcher searcher = new ManagementObjectSearcher(

new ManagementScope(string.Format("\\\\{0}\\root\\cimv2", machineName))

, new ObjectQuery("SELECT PartComponent FROM Win32_SystemServices"));

foreach (ManagementObject iQueryObj in searcher.Get())

{

string name = iQueryObj["PartComponent"].ToString();

if (name.Contains("ClusSvc"))

{

isClustered = true;

}

Jeff Gogel

benf101 42466 SSC Journeyman Points: 80 More actions · Answer 7

I had to change it to this to get it to work:

if ($s.Name -ne $server) {