Outlook 2010 prompting for credentials after moving to hosted exchange/office 365

We’ve been migrating to hosted exchange on Office 365 for some weeks now. Some of our Outlook 2010 clients have a problem once they’d been moved. After many hours of trying different things and searching I found a Microsoft Patch that resolved the problem. The KB Number is – KB2791026 downloads can be found here KB2791026 Also…

#Article on – Do Jumbo Frames Improve vMotion Performance? – Wahl Network

I’ve been considering this for some time, this was the final article that helped me decide, the idea is good but its not that straightforward! Do you want to drive further performance from vMotion with jumbo frames? This post covers some real numbers from performance based speed tests. Source: Do Jumbo Frames Improve vMotion Performance?…

ESX 5.5 Host Disconnects 60 seconds after adding to vCenter.

ESX 5.5 Host Disconnects 60 seconds after adding to vCenter. Today I’ve been creating a new network for our ESX Hosts and encountered this error. I could add the host to vCenter but after a minute it would come up “disconnected” I could still access the host directly via web browser, sphere console and the TTY console I…

Private VLAN’s on VMWare vNetwork Distributed Switch (PVLAN on vDS)

Private VLAN’s on VMWare vNetwork Distributed Switch (PVLAN on vDS) I realised I knew very little about the PVLAN for the vDS’ I started going through and finding some informational videos so decided to put them all in one place take hopefully make it easier for other people. (None of these videos are mine, all…

Windows Update – Error 800B0001

I had a problem this morning after deploying a WSUS server. When running Windows Updates on the client workstation I get the Error 800B0001.  I found this was due to the missing update To resolve this error you need to install this update – KB2720211 Download and install the patch then restart the server.    …

VMWare Data Protection /var 0% free disk space.

Our Veeam ONE Monitor showed the following error for our Data Protection Appliance 5.5 “Amount of free disk space “/var” (0%) is below a defined threshold (5%). Current free disk space is 0.00 GB” I connected to the console via PuTTY and found the alert was correct /var was out of space. So I couldn’t…

How To Migrate vSphere Machines To vCloud Air

Trying to understand how to migrate machines to vCloud Air is an interesting subject, especially if you want to move on-prem to cloud. I can’t take any credit for this here’s a useful guide Hopefully this should give you some help.