The ramdisk ‘var’ is full on ESXi host and fix (without maintenance mode or reboot)

I recently encountered an issue where vMotions on a host would fail, the host would disconnect from vCenter, and some other strange errors. This was an HP host installed with the HP ISO image, but not sure if that is the cause of this issue. When investigating the logs on the host I noticed that /var on the ramdisk was … [Read more...]

vSphere Distributed Switch refused to upgrade to version 6.5

Just after vSphere 6.5 was released I decided to upgrade my lab to 6.5. Most of the upgrade went pretty smooth, but two of my 3 distributed switches refused to upgrade. Googeling for a solution dit not help too much, probably since the product was released just a day before When I tried to upgrade I got a message the … [Read more...]

Invalid credentials message when registering vCenter Server with external Platform Service Controller in vSphere 6

When vSphere 6 was released, I decided to delete my RTM version of my external Platform service Controller and vCenter Server appliances, to replace them by the GA versions. Installing the PSC went fine, but when installing the vCenter appliance, I was not able to register it to the PSC. I kept getting the message … [Read more...]

Add RecoverPoint 4.1 with SRM RecoverPoint SRA 2.2 fails with error “SRA command ‘discoverArrays’ failed” UPDATED

During an installation and configuration of an SRM solution for a customer based on EMC RecoverPoint 4.1 I ran in to an interesting issue. When I tried to add the RecoverPoint Clusters on both sites using the RecoverPoint SRA 2.2 I received the following error message: Looking at the SRM logs on the SRM server did not … [Read more...]

Batch file to start VSAN Observer on Windows vCenter Server

After reading the blog article by Erik Bussink on how to use the VSAN Observer software on a Windows vCenter Server, I quickly got annoyed by manually having to start the Ruby rvc script and the VSAN Observer every time I created a little batch file that can be put on your desktop to launch the VSAN Observer Just enter … [Read more...]

Tech Preview of Horizon View Desktops Plugin for the vSphere Web Client

During the Horizon View 5.2 Beta I noticed the View Desktops Tech Preview. Since the Beta was covered by an NDA I was not allowed to publish this, but since the product is GA for a while now here’s the story. The plugin will let you search for usernames in the vSphere Web Client search field and shows you the … [Read more...]

Beta training in Frimley: VMware vCenter Operations Manager: Advanced Usage and Dashboard Design

May 8th – 10th 2013 VMware will host  a 3 day beta training at their Frimley UK HQ for their new VMware vCenter Operations Manager: Advanced Usage and Dashboard Design training. This training course focuses on the advanced capabilities of VMware® vCenter™ Operations Manager™ 5.6, such as adapters, customization and … [Read more...]

ESX hosts not registering on EMC VNX (and fix)

While working on an upgrade to vSphere 5.0U1 on a Cisco UCS environment, where the ESX hosts boot from SAN, I noticed one of the hosts was not registered correctly on the EMC VNX, as it showed up as unmanaged. Because the ESX hosts boot from SAN, the host has to be registered before it can auto register, and when it … [Read more...]

EMC WebEx on VAAI support in ESX5 for CX4 at the 28th of June

Today I received a tweet from Chad Sakac, SVP Global SE at EMC, that he will be discussing some of the questions and concerns I raised in my blog post Challenges when upgrading environment with EMC CX4 to vSphere 5 and mixed CX4/VNX environment in next weeks Chad’s Choice WebEx, and in a blog post on his Virtual … [Read more...]

Enabling VAAI on ESX5 on a per array base idea

Yesterday I wrote an article on issues when using a combination of CX4 and VNX in a vSphere 5 environment since ESX5 does not support on VAAI according to VMware and the VNX does. Simple solution would be to disable VAAI  on all ESX5 hosts, but in that case your VNXes would also loose VAAI. Victor Forde pointed me to a … [Read more...]