“It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.” – Franklin D. Roosevelt “Errors in Active Directory operations” sounds familiar? Did you check that the following ports (both UDP and TCP) are open for communication… Continue reading
Two weeks ago, we started with regular updates of our Flex system servers, including drivers and firmwares. It is good practice to update drivers first so I followed this procedure as usually. Our update list included ESXi driver for CN4022 (QLogic Broadcom BCM57840). Since IBM/Lenovo doesn’t provide VMware drivers for… Continue reading
Situation: we are in a cloud environment using bare metal servers installed with VMware vSphere, VMware vSAN and VMware NSX. Cloud Backup is a topic of this article and architecture decision was made in a way to have a possibility to restore servers immediately in case of VMware vSAN failure.… Continue reading
Like some of my regarded fellow Virtualists (Stan Markov, Ivo Ivanov, Aylin Sali) I also decided to take a peek over the fence into a different world, world of startup companies – Runecast Solutions. Credit to IBM My big thanks belong to IBM, namely the Client Innovation Center in Brno,… Continue reading
Recently a team mate asked me to create a small linux image with a certain tool set, so he can use it for network testing. You may say, why to create it, if you can download pre-created images already. Well, thats true, but it was a nice challenge and an… Continue reading
Today I’m gonna show you, how to be alerted when VM port is being blocked by security policy defined on portgroup or vSwitch level. If you are not aware so far, these settings prevents VM users (or attackers) to change MAC address from the operating system. There are three security… Continue reading
This article covers a scenario where you need to point and work with vAPI endpoint entirely with JavaScript. It wasn’t as flawless as I expected and I spent quite some time to figure it out. Let’s jump in. A while back Angel Iliev wrote 2 very detailed articles covering vAPI… Continue reading
Agentless monitoring of the Guest RAM metrics is one of the new feature introduced with vRealize Operations 6.3 with vSphere 6.0 U1. I was really happy to finally see this functionality, as memory metrics which are provided by default are not accurate and I would say almost useless when trying… Continue reading
Working with vRealize Orchestrator (vRO) in a enterprise environment requires some kind of high availability and redundancy. Even vSphere HA would work for some small environments in a big one, where you expect a high number of operations, needs a clustered solution. Fortunately vRO7 supports that and now I will… Continue reading
When it comes to automation and further customization of the vRA managed VMs we can’t overlook the vRA 7.x Event Broker. It gives us the opportunity to trigger a vRO workflow when one or multiple conditions are met. In most use cases the information regarding the object that triggers the… Continue reading