Having cluster problems after installing SP1

If you have a cluster with three or more nodes – you may encounter problems with CSV after installing SP1.  If you are seeing any of the following problems:

 

  • The Validate SCSI Device Vital Product Data (VPD) test fails. Additionally, you receive an error message that resembles the following:

    Failed to get SCSI page 83h VPD descriptors for cluster disk <number> from <node name> status 2

  • The List Potential Cluster Disks storage validation test may display a warning message that resembles the following:

    Disk with identifier <value> has a Persistent Reservation on it. The disk might be part of some other cluster. Removing the disk from validation set.

Then you need to download this hotfix: http://support.microsoft.com/kb/2531907

How to add a new or rebuilt cluster node to SCVMM 2008

If you are adding a new node to an existing cluster that is being managed by System Center Virtual Machine Manager 2008 (SCVMM), or if you had to rebuild a node of a cluster and need to add it back, here are the steps that are required:

First, here is the existing cluster: Continue reading “How to add a new or rebuilt cluster node to SCVMM 2008”

Create failover cluster in SCVMM2012

After the Hyper-V hosts are configured and doing well in the Fabric, it`s time to take another step toward the highly available environment that everyone is demanding in today’s businesses. It`s time for Failover Clustering.
Reminder:
Both of my physical servers was installed with Windows Server 2008 R2 Enterprise SP1
There are 4 NICs pre-configured on the servers, and both servers are joined to my domain.
Both servers are connected to the iSCSI-target (used for CSV in my lab).
I`ve created a RunAs account in the ‘Host computer’ category for managing my physical servers.
We will still be located in the Fabirc, and creates our cluster from here. Continue reading “Create failover cluster in SCVMM2012”

Create networks in SCVMM 2012

So far, I am really impressed by all the improvements in VMM 2012 when it comes to the deepintegrations with hardware resources, hypervisors, and clusters.
The possibility to administer and manage the entire eco system from a single console, is a huge benefit in our day-to-day work.
Another interesting improvement is how you can create logical and virtual networks.
In my last post, I covered the creation process of a Failover Cluster with VMM 2012.
We will now focusing on the creation of both logical and virtual networks. Continue reading “Create networks in SCVMM 2012”

System Center Data Protection Manager 2010 Hyper-V protection: Configuring cluster networks for CSV redirected access

When System Center Data Protection Manager 2010 (DPM) is protecting Hyper-V guests using the Microsoft Software Shadow Copy provider (the VSS provider), DPM will be using software snapshots when backing up guests located on Cluster Shared Volume (CSV) disks. While the backup is in progress, the CSV will remain in re-directed access mode for the duration of the guest backup.  This means all disk I/O for Guests located on that CSV will be in redirected mode and be going over the network instead of direct access to the CSV and performance may be affected.  Continue reading “System Center Data Protection Manager 2010 Hyper-V protection: Configuring cluster networks for CSV redirected access”