Horizon View: Black screen after vSphere 6.5 upgrade (PCoIP / Blast)

In a recent project, I just run into the problem that a vSphere upgrade from 6.0U2 to 6.5 broke the possibility to connect to the existing Horizon View VMs via PCoIP (HTML5 / Blast also affected). The users just got a black screen after connecting to the desktop pool. After switching them to RDP as […]

VCSA 6.5 update fails with “vix error codes = (1, 4294967294)”

Last week I performed a VCSA upgrade from 6.0U2 to the latest 6.5 version. Already in Stage 1, where I needed to connect to the source appliance I got the error “A problem occurred while getting data from the source vCenter Server” from the installer (like you can see on the screenshot). The attached log […]

Unable to login to the vSphere Web Client after VCSA 6.0U1 upgrade to 6.0U2

After an upgrade of a VCSA 6.0U1 to 6.0U2, I was unable to login to the vSphere web client. Also the login screen was a little bit messed-up like you can see on the screenshot below. When I entered a login name and a password it directly showed User name and password are required, like […]

Configure a HTTPS proxy for vCenter VAMI updates

I just needed to update a customer’s vCenter server from 6.0U1 to 6.0U2. As I didn´t have access to the vSphere cluster where the vCenter VM itself was running, I tried the update option via the VAMI interface. The vCenter was unable to directly connect to the internet but I got a proxy URL from […]

Removing multiple VMs / entries from the VMware Horizon View Composer Database

Manual modifications in the VMware Horizon View ADAM or Composer Database can be a very annoying task. Last week a customer had a serious problem with a View 6.2 installation, which led to many left over entries of linked clones in the Composer SQL database. In the KB 2015112 VMware lists all relevant tables and […]

Nutanix: Metro Availability & vSphere 6

During some tests with metro availability in the lab with NOS 4.5 and vSphere 6 I noticed that it was not possible to pair the two Nutanix clusters as usual. After the remote site was configured on both clusters, it was not possible to configure metro availability due to the reason that no compatible remote […]

Nutanix: vmnic down warnings after vSphere 6.0 upgrade

After we upgraded our Nutanix clusters some days back from vSphere 5.5 to vSphere 6.0 we got a massive amount of ongoing warnings, which claimed that two vmnics on each node were down (“Link on NIC vmnicX of host xx.xx.xx.xx is down”). In general that was correct because the vmnics were down…….but they have been […]

Nutanix: Unable to delete container / VDisk(s) not marked for removal

If you are unable to delete a container within Prism this is mostly related to remaining files on the datastore / container. When you try to delete the container you will get an error message like “Container {container-name} contains VDisk(s) 123, 456, 789 not marked for removal.” Mostly it should help if you remount the […]

Protected: Lab results: Benchmarking a EVO:RAIL system

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Lab results: Benchmarking a Nutanix Block

The last weekend I spend some time in our solutions center at work to play around with a Nutanix block. I thought it would be interesting to benchmark the system to see how much performance you can get out of it and would like to share the results with you in this post. Hardware & […]