Actually, yesterday should be the day at which I migrate one of the last physical Windows vCenter servers installed in my customer base. Actually… the migration failed twice. And each time I had to rollback, power-on the old physical server, reset the computer account etc.
The update was from VMware vCenter Server 6.0 Update 3d (7462484) on a Windows 2012 R2 server to vCenter Server 6.7 Update 3 (Appliance). The migration failed at 62% with the following message:
The last few weeks have been quite busy. Time to focus on exam preparation again. Let’s start with the first objective of the second section.
This blog post covers objective 2.1 (Map business requirements to a vSphere 6.x logical design) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017).
The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).
This issue is described in KB2971270 and is fixed in Exchange 2013 CU6.
I published this blog post in July 2015 and it is still relevant. The feedback for this blog post was incredible, and I’m not joking when I say: I saved many admins weekends. ;) It has shown, that this error still occurs with Exchange 2016 and even 2019. Maybe not because of the same, with Exchange 2013 CU6 fixed bug, but maybe for other reasons.
It is time for some words of wisdom, in regard to Exchange and the supported Active Directory environments. It is the same as with the supported. NET Framework releases: Latest release does not automatically mean “supported”.
To be honest: I nearly nuked a customer environment with ~ 300 users yesterday by preparing the domain for the first Windows Server 2019 Domain Controller.
Patrick Terlisten/ vcloudnine.de/ Creative Commons CC0
First things first: Everything is fine!
Vembu Technologies was founded in 2002, and with 60.000 customers and more than 4000 partners, Vembu is a leading provider with a comprehensive portfolio of software products and cloud services to small and medium businesses.
In December 2018, Vembu announced the fourth major release of their BDR Suite. Vembu BDR Suite 4.0.1 is now out for production setups with enhanced performance and bug fixes. Vembu BDR Suite v4.0.1 is an intermediate patch update that addresses the customers reported issues and other support issues on the previous build of v4.
This blog post covers objective 1.3 (Determine risks, requirements, constraints, and assumptions) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017).
The first objective of the exam prep guide has covered the business requirements. Now we have to do similar for the affected applications.
The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).
A customer reported a weird problem with his NetScaler Gateway. Upon the first load of the website, they got an error “Cannot complete your request”. After clicking OK the error disappeared and does not occured again after reloading the website. Only after closing and re-opening the browser. I got this message in Firefox and Internet Explorer, but not from a remote machine, e.g. my PC at the office.
Patrick Terlisten/ vcloudnine.
This blog post covers objective 1.2 (Gather and analyze application requirements) of the VCAP6.5-DCV Design exam. It is based on the VMware Certified Advanced Professional 6.5 in Data Center Virtualization Design (3V0-624) Exam Preparation Guide (last update August 2017).
The first objective of the exam prep guide has covered the business requirements. Now we have to do similar for the affected applications.
The necessary skills and abilities are documented in the exam prep guide for the older VCAP6-DCV Design exam (3V0-622).
This is a situation that never should happen, and I had to deal with it only a couple of times in more than 10y working with VMware vSphere/ ESXi. In most cases, the reason for this was the usage of thin-provisioned disks together with small datastores. Yes, that’s a bad design. Yes, this should never happen.
There is a nearly 100% chance that this setup will fail one day. Either because someone dumps much data into the VMs, or because of VM snapshots.
Sorry for the long delay since my last blog post - busy times, but with lots of vSphere. :) Today, I did an upgrade of a standalone vCenter Server Appliance at one of my healthcare customers. The vCenter was on 6.0 U3 and I had to upgrade it to 6.7 U2. It was only a small deployment with three hosts, so nothing fancy. And as with in many other vSphere upgrades, I came across this warning message:
