Tag Archives: Skype

Back End Server options: Skype for Business 2015

Back End database is a key for any two-tier or three-tier application. It might be deployed independently in the form of database server or as native database managed by application itself. Microsoft SQL server is play an important role with Microsoft UC platform either LCS/OCS or Lync/SfB. Since Lync Server 2013 onwards SQL server is loosely coupled with Back End Servers and most of the activities is used to happen on SQL express edition itself which is part of the Front End Servers. Still, Microsoft Lync Back End Server maintains copy of user persistent data, application data and Central Management Store.

Lync Server 2013 supports SQL Mirror and SQL Failover Clustering (Lync Server 2013 CU1 onwards) for Back End databases. While SQL Server AlwaysOn is not supported with Lync Server 2013.

SQL Server AlwaysOn was first introduced with SQL Server 2012. Now, Skype for Business Server supports all the options.

  • SQL Mirror
  • SQL Failover Clustering
  • SQL AlwaysOn Availability groups
  • SQL AlwaysOn Failover Cluster Instances (FCI)

One concern which always arise “Simple & Cost Effective Solution without performance compromise?” for better ROI with lower TCO. All four options use same SQL Server but edition and storage requirement make difference.


Database Mirroring is a simplest method for Skype for Business Back End Server which can be easily setup by Lync Server Topology Builder. To achieve automatically failover, deploy witness server. To use Failover Clustering, AlwaysOn Availability groups and AlwaysOn Failover Cluster Instances, you first setup and configure the Back End servers high availability solution.


Skype for Business: Just branding change or New UC Solution from Microsoft/Skype?

I believe everyone knows about Skype, which had been acquired by Microsoft in May 2011. Skype is a best solution for chat, voice and video available publicly.

I am going to talk about Skype for Business rather than Skype. Many professional may think, Skype is launching a new solution for enterprises which will compete with other UC solution available in the market.

To clear this doubt, clear answer is NO.

Skype for Business is a new product line for Microsoft UC solution which will replace Lync. Same as branding, Lync Server 2013 will be replaced by Skype for Business (SfB) server 2015 and Lync client 2013 will be replaced by Skype for Business client and it will be part of the Office 2016. This is a major move from Microsoft which has taken towards the known solutions which are freely available in the market and used by Billions of people worldwide whereas business version of those are paid, for example one drive and one drive for business.

There are no major changes in the SfB Server architecture as well as in SfB client. Right now, have a quick look and feel about SfB client and stay connected to know much more. J

SfB client logo looks like same as Skype or old Lync 2010 client logo where “L” has been replaced by “S”.

Same as Lync 2013 client you can see your contacts by groups, status, relationships etc.

Pictures can be seen in round shape instead of square shape.

Below is the new look of conversation between within the enterprise and between enterprise and ad-hoc external users.


Above picture is indicating, vidoe calling is now available between Skype(live+hotmail+outlook) and SfB clients.