Safe to issue Stop-ClusterNode?

[mrmovie]

I am looking for a set of pre patching commands to issue on Cluster Nodes.
I roughly have:

+ Import-Module FailOverClusters
+ Test-IsRequired (Get-ClusterNode -Name $ENV.ComputerName).State.ToString() Up
+ Suspend-ClusterNode $ENV:ComputerName
+ Stop-ClusterNode $ENV:ComputerName

i need to add some sort of check before doing the 'Stop-Cluster', otherwise i risk killing the cluster if the 'Quorum Configuration' is saying (GUI) "Node Majority – Warning: Failure of a node will cause the cluster to fail".

any idea of how i get this type of check included? somethign which resulted in a boolean would be good, such as Safe-To-Stop

I Hear, I Forget
I See, I Remember
I Do, I Understand

Ronald McDonald

 

[58sniper]

Check
(Get-ClusterResource -Name quorum).state
if it's not "online", it's not safe to stop.


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[mrmovie]

thanks 58niper,
not going to work for me. some clusters dont have a quorum. I must state that i am considering w2k8 servers.
but, continuing on your theme, if i check the ClusterResource's in a cluster which is showing 'Failure of a node will cause the cluster to fail', i am getting State of Online for all Resources, nothing is showing me or hinting to me that if i take the node offline i will bring the cluster down

I Hear, I Forget
I See, I Remember
I Do, I Understand

Ronald McDonald

 

[mrmovie]

i could of course:
$intPossibleVotes = 0
$intPossibleVotes = $ClusterNodes.Count
$intPossibleVotes = $intPossibleVotes + $OtherWitnesses?.Count
$intVotes = 0
$intVotes = $ClusterNodes.Active.Count
$intVotes = $intVotes + $OtherWitnesses?.Active.Count
If ($intVotes - 1) -lt (($intPossibleVotes / 2) + 1 ){
Write-Host "you shouldnt take down this node..."
}

#but i just want to check something nice, that MS can give me already, they are working it out as they couldnt display the message otherwise

I Hear, I Forget
I See, I Remember
I Do, I Understand

Ronald McDonald

 

[58sniper]

True, but cluster.exe doesn't use PowerShell in the background.

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[mrmovie]

i agree about cluster.exe not using powershell in the background. perhaps i should refer to cluster.exe commands and see if that will give me anything better.
thanks for the replies 58sniper, have a good weekend

I Hear, I Forget
I See, I Remember
I Do, I Understand

Ronald McDonald

 

[58sniper]

Yeah, I remember when I was first learning PowerShell I was doing some stuff with cluster.exe. Take a look at my blog post: Cluster administration from PowerShell and the infamous back tick.

I'm still moving the content over to that blog from another site, but the content for that post should be good.

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