VMM will
place the hosts (one at a time) in maintenance mode, live migrate the VMs to
the other nodes, patch the node, eventually reboot the node and take it out of
maintenance mode before it goes on with the next host.
So, this
is brilliant. I can`t tell how many times I`ve done this manually prior to VMM
2012, when I rather should be home watching some random Barcelona match on TV.
So with
Windows Server 2012 (yes- Windows Server “8” will be named Windows Server
2012), you have an inbuilt role for patching your failover cluster, that will
work in a similar fashion.
Let`s
take a look at the easy configuration for Cluster-Aware updates.
1.
Connect
to your cluster that you want to enable for Cluster-aware updating. In my case,
I have a cluster that hosts my highly available VMs, connected to a Windows
Server 2012 iSCSI target.
2.
Click
‘Configure cluster self-updating options’ to configure this role
3.
You`ll
be able to add the CAU clustered role if this is not already added on the
server. Click next
4.
Configure
the frequency of self-updating. I`m leaving it with the defaults in this case
5.
During
the page for advanced options, you can use the settings based on a configuration
you have created elsewhere (xml file) if you want the same options to be
applied across your clusters, or specify new parameters in this view. I have
enabled the ‘RequireAllNodesOnline’ and ‘MaxFailedNodes’ in this example
6.
Additional
options lets you get recommended updates the same way that you receive important
updates through Windows Update
7.
Confirm
your choices, and if you scroll down you`ll see the PowerShell code workflow
that will take place during completion.
8.
The
Clustered Role is completed
Now,
let`s wait for some new updates for Windows Server 2012 J
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