Scale Comparison Table Physical-Virtual
Standard User model with conferencing, PSTN conferencing, and Enterprise Voice
IM&P = IM and Presence
AS = Application Sharing
AV = A/V Conferencing (collocated if Front End Server)
EV = Enterprise Voice (Response Group Service/PSTN access), Mediation Server
Reg = Registrar (subset of IM&P)
AP = Access Proxy (Edge Server)
DP = Data Proxy (Edge Server)
MR = Media Relay (Edge Server)
Note: The Virtual Machine numbers are based on a 4 core CPU Virtual Machine.
|
Lync Server Role
|
Features
|
Physical
|
Virtual
|
||||
|
CPU
|
Memory
|
User
|
CPU
|
Memory
|
User
|
||
|
Enterprise Edition Front End Server
|
IM&P
|
8 core
|
12 GB
|
20K
|
4 core
|
10 GB
|
12.5K
|
|
Enterprise Edition Front End Server
|
IM&P, AS, AV, EV
|
8 core
|
16 GB
|
5K
|
4 core
|
16 GB
|
2.5K
|
|
Enterprise Edition Front End Server
|
IM&P, AS, EV
(8 Front End pool)
|
8 core
|
12 GB
|
10K
|
4 core
|
11 GB
|
5K
|
|
Enterprise Edition Front End Server
|
IM&P, AS, EV
(single Front End Server in pool)
|
8 core
|
12 GB
|
7K
|
4 core
|
11 GB
|
4K
|
|
Standard Edition Front End Server
|
IM&P
|
8 core
|
16 GB
|
25K
|
4 core
|
12 GB
|
12.5K
|
|
Standard Edition Front End Server
|
IM&P, AS, AV, EV
|
8 core
|
16 GB
|
5K
|
4 core
|
16 GB
|
2.5K
|
|
Director
|
Reg
|
4 core
|
4 GB
|
20K
|
4 core
|
4 GB
|
10K
|
|
Monitor/Archiving Server
|
8 core
|
16 GB
|
230K
|
4 core
|
8 GB
|
110K
|
|
|
A/V Conferencing Server
|
AV
|
8 core
|
16 GB
|
20K
|
4 core
|
11 GB
|
10K
|
|
Mediation Server*
|
MS
|
8 core
|
16 GB
|
800 concurrent calls
|
4 core
|
10 GB
|
400 concurrent calls
|
|
Edge Server
|
AP, DP MR
|
8 core
|
16 GB
|
15K
|
4 core
|
8 GB
|
7.5K
|
|
Survivable Branch Server
|
Reg, MS
|
2 core
|
2 GB
|
1K
|
2 core
|
2 GB
|
1K
|
|
SQL Server Back End Server (FE)
|
8 core
|
32 GB
|
80K
|
4 core
|
16 GB
|
40K
|
|
|
SQL Backend (M/A)
|
8 core
|
16 GB
|
230K
|
4 core
|
12 GB
|
115K
|
|
|
File Server
|
4 core
|
4 GB
|
80K
|
2 core
|
3 GB
|
40K
|
|
* Stand-alone Mediation Server for deployments without Media Bypass
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