Virtual MS Cluster Node “Invalid Network Format” Error


I came across an interesting scenario recently where a node that is part of a Windows Cluster (hosting a SQL Cluster) on Windows Server 2012 R2 suddenly started reporting errors. The node is part of a 2-node cluster with a 3rd VM acting as a file share witness for the cluster, and had just been moved between vApps in an IaaS / cloud environment to account for a DR provision (where DR is based on vApp membership, not at individual VM level). Once rebooted, the cluster was showing some strange errors, and the cluster name had changed in the Failover Cluster Manager from 'MSCLUSTER.DOMAIN.LOCAL' to 'MSCLUSTER.MSCLUSTER'. On renaming the cluster manually, the ever helpful Microsoft error message (seen in the image attached to this post) … [Read more...]

vCloud Director vApp Error ‘Cannot Update’

vcloud error

Came across another strange issue in a production environment the other day that was also a bit of a facepalm monent. Users of a private vCloud Director instance were complaining of issues with updating vApps - specifically around adding and managing assigned storage associated with these vApps. The errors presented within the vCloud interface were randomly brief and not a little vague - 'Details: Error, Status: Error' etc. This error in the example was taken directly from the vCloud GUI, with no associated vSphere Tasks (that list being blank). The error presented wether the vApp was running or stopped, and wether the VM concerned was running or stopped - each time it was the same. Looking a little deeper into the vCloud logs … [Read more...]

Fixing vCloud Director ‘HTTP NFC Error’ & Sysprep


Recently I've been doing some work on vCloud Director deployments, typically new VMs within Organisations. On powering-on VMs or deploying vApps, I got the error 'Unable to start vApp '<vApp Name>'. The more specific error related to one or more of the following errors: 'HTTP NFC Error'. Cannot deploy package from /opt/vmware/vcloud-director/.... etc etc. Unable to start vApp. Unable to start virtual machines in resource pool. Broken pipe. Broken pipe. Solution: A little bit of digging on the vCloud cell (RHEL in this case) showed the permissions were incorrect on the 'guestcustomization' folder, and that changing these fixed the problem. A little more investigation showed-up the … [Read more...]

Trying vCenter Operations

vCenter Ops Download 1

As I mentioned a little while ago, vCenter Operations is a new management product that VMware are bringing out. Well, actually they've now brought it out as of Monday. I thought I'd check it out... Downloading To sign up for a trial and download vCenter Operations, you simply need to head over to VMware's "Support and Downloads" page and expand the "Infra & Ops Management" section. Follow the download link, register for a free trial, accept the Ts & Cs and download the software. vCenter Operations comes as virtual appliance (you download an OVA file) that's about 600MB+ in size. Depending on the size of your internet connection, you may want to do something else right now. Installing I don't want to teach people … [Read more...]