Specifications

15 Reference Architecture | Dell
TM
Unified Communication Solution with Microsoft® Lync® Server 2013 for Single Site
Implementation | Version 1.0
performance compromise. In addition, consolidating these roles saves administration costs and
eases management.
• Using internal server storage. With a different RAID set within the server chassis for the guest VM,
host OS and SQL database, costs are reduced while application best practices and performance
requirements are met. The use of internal storage instead of external direct-attached arrays or
SANs is more cost effective and simplifies deployment.
As shown by the highlighted block in Figure 2, the overall design for the Lync Server 2013 core architecture
consists of two Dell PowerEdge R620 1U servers. Each of these servers is running Windows Server 2012 with
Hyper-V. The detailed hardware specification for these servers is provided in Section 4.
Figure 2 Lync Server 2013 Core Architecture
For providing high availability at the application level, two Lync Standard Edition VMs each collocated with
Mediation and Archiving+Monitoring roles are configured in a paired Standard Edition pool. These VMs are
placed on separate physical Hyper-V hosts to ensure that a single physical server failure does not impact
more than one Lync Standard Edition VM. Lync 2013 requires Office Web Apps Servers (OWS) to provide an