today a short day to day helper regarding cluster networks.
Last weekend I had a question from my coworker, if it is possible to react on failed networkconnections within a cluster even if the cluster is still running.
As you know Hyper-V is running as long as the cluster heartbeat is available and the storage is reachable. Only if these connections fail, Hyper-V Cluster forces a node to failover his roles.
My answer, yes it is possible with some tricks. First thing you need to know is, that if a network connection in the cluster failes, we get an error event.
Event ID 1129 — Cluster Network Connectivity Partitioned https://technet.microsoft.com/en-us/library/dd353962%28v=ws.10%29.aspx?f=255&MSPPError=-214721739
This event is also noticed in the event viewer of your Hyper-V Host. Now you can attach a task to that event and for example run a script which forces a failover.
The script to set the node in maintenance mode and force a failover could look like:
$VMHost = Get-SCVMHost -ID "Hyper-V Host ID"
Disable-SCVMHost -VMHost $VMHost -MoveWithinCluster -RunAsynchronously
You can achieve the same effect when you use System Center Operations Manager by configuring an Agent Task for your Hyper-V Host.
Find more info here: https://technet.microsoft.com/en-us/library/hh563486.aspx
In this interview that starts at [12:15] we cover:
Why does Microsoft invest in the Open Source community?
[13:45] What is “DevOps” and how does it add agility to the application lifecycle?
[15:30] What is Application Performance Monitoring (APM)?
[16:30] How does APM differ from traditional Operations Manager monitoring?
[16:45] What are the benefits of APM for IT professionals and developers?
[17:30] How does APM work?
[19:00] Does the developer need to add any specific code to make monitoring work?
[19:15] Will legacy Java applications work with APM?
[19:30] Demo: Configuring and viewing Java Application Performance Monitoring
[28:45] Where can people go to learn more?
Dell recently updated his Printer Manangement Pack.
Source Dell TechCenter global
The Dell Printer Management Pack Suite with Microsoft System Center Operations Manager (SCOM) and System Center Essentials (SCE) environment allows you to manage, monitor, and ensure the availability of the Dell Printers
To download on it, please click here.
Dell published his Array Management Pack Suit for Microsoft System Center 2012 Operations Manager R2.
Source Dell TechCenter global:
The Dell MD Storage Array Management Pack Suite for Microsoft System Center 2012 Operations Manager SP1, System Center 2012 Operations Manager, System Center Operations Manager 2007 R2 and System Center Essentials 2010 integrates Dell PowerVault MD Storage Arrays monitoring into Operations Manager. The Management Packs provide a list of Dell-specific views that you can use to observe and drill down the system status in a network.
To download the Suit please click here.
Dell TechCenter Global published a good guide for SCOM 2012 with Dell Compellent Storage Center Management Pack 2.0.
You can download it here.