Time Running Slow on Virtual Servers

To some this may be a no brainer, and in fairness we found the cause and fixed it 5 minutes, but to some it may be a head scratcher.

We have a load of servers all running on Windows 2008 R2 and on ESX Hosts. The time on some servers is running slow by up to 3 minutes on the affected servers and perfectly in sync with the time source we use on the others. So the question is why is the time running slow on some? But this was not always the case for the same servers.

The time source is configured correctly on the servers
The Time source Server is correct as is the actual time source

As DRS kicked in for some of the affected servers and they moved to new hosts the time was corrected, but those that didn’t move, they stayed out of sync.

As it turns out we had one ESX Host that did not have the NTP feature configured which meant the servers reported the ESX Hosts time. So once this was set up properly all the servers caught up and matched the correct time.

Hope this helps.

About Chris Ainger

I have been working in IT since 1998 in the Public Housing Sector. I have worked with Citrix since 2003 in the days of Citrix Metaframe XP 1.0 FR2. Since then I have been through the processes of upgrading to Presentation Server 4.0 with a farm of around 150 servers. Since then I have helped create a farm of around 200 servers using XenApp 6.0 on VMware 4.1. This was a great experience which has only increased during the upgrades of the environment for out 2000+ users. All of our clients are the WYSE 10 series using ThinOS which I have helped configure for individual users from a central location making administration very simple. I gained my CCA qualification in XenApp 6.0 in January 2012. I am a big fan of SolarWinds also, which is a great monitoring tool. It is very versatile with a small footprint of resource usage on the targeted devices. I am currently designing the interfaces for the IT department for daily use and also a Service view for the Support Desk Team. I am also a keen fisherman, having restarted again after 20 years. I set myself yearly targets to try to complete which makes this more interesting and belong to several forums of other like-minded folks. I, on occasion, fly fish for trout as a treat once in a while or when the fridge gets empty and also sea fly fish for bass and mullet. My main area is sea fishing from either beach, harbour wall or pier. There are so many species of fish to catch around the UK that you can mix up the locations to try something different.

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