August 2014 Lync Server 2013 CU Solves Address Book Delta Issue… Eventually.

The Address Book delta issue that we and so many other large Lync environments have experienced is resolved by the Lync Server 2013 Cumulative update for August 2014 – about 30 days after the update is installed. So, patience, Grasshoppers.

What should have been the early July 2014 Lync Server 2013 Cumulative Update became the mid August 2014 update, but we’re not complaining – it beats the early July update followed closely by the August update to fix the damage done by the July update!

Installing the Cumulative Update – and Waiting

First, a warning passed on to me by the MS Support engineer who handled our original incident: after you connect to each of your Lync Front End servers and before you install this update, make sure that Event Viewer and Performance Monitor are not open. To be safe, close all MMC windows, including the “Server Manager” one that comes up by default when you log on to Windows Server 2008 or 2012. If you’ve read the release notes (which you should have!), you’d have seen this, but I’m stating it again, as the MS Support engineer thought it important enough to contact me directly.

Our installation of the update went smoothly, taking less than half an hour per server, including the time to stop all Lync services before and for them to start again after. We only had one server out at a time; the pool was still running.

Now, back to the whole “eventually” part. You will not see a “good” delta the first day you run an address book update, no matter how many times you enter “Update-CsAddressBook”. Continue reading