Slow network connectivity
Posted on 2013-12-28
Hi, last Sunday morning I ran updates on one of my virtual servers and four virtual machines on that server. After all VMs (Hyper-V) were updated I shut them down as I normally do and then rebooted the host server which also was updated. When the systems rebooted, I noticed that there was a significant delay in the bootup of the host and especially the VMs. The host server normally takes about 10 minutes to come up all the way ... now it was taking about 30. The VMs were even worse ... taking almost an hour to boot up. The systems do run and are accessible, but are slower. This is especially noticeable on the Exchange 2007 server which gives the user the old "trying to receive information from the exchange server" when switching folders or initially logging in and even opening bigger messages. One of the machines is an Oracle server and apps that access the Oracle databases are noticeably slower. The nightly backup of the exchange server used to take approximately 4 hours and now takes 12. I also did a data drag from my computer to the C$ of all the VMs which was very slow. The drag to the host server C$ was much faster, but stil not as fast as dragging to another virtual host server. The only change to the system were the updates so I uninstalled all the updates that were installed that morning on the host server and the exchange server. This did not have a noticeable affect. The event logs don't show any new events that weren't happening before the problem.
The host server is Windows 2008 R2 SP1 ... the VMs are 2008 and Windows 7.
Thanks for your assistance.