Specifications

A Principled Technologies test report 5
Dell Active System 800 converged infrastructure solution: User
collaboration performance
Power management without compromise
Using Dell OpenManage Power Center, which allows data center managers to place
energy usage caps on resources, we restricted the available power to the Dell PowerEdge M620
servers at 58 percent of their upper bound energy usage. The solution still delivered close to the
same performance for the collaboration users and four heavy order-processing workloads (see
Figures 4 and 5).
Workload
Measurement
Order-processing workload
127,753 orders per minute
Microsoft Exchange
14.341ms latency (<50ms is acceptable)
1.685 messages per second
Microsoft SharePoint
7.684 requests per second
Microsoft Lync Server
8.775 IMs per second
Figure 4. Results from capped power testing of Microsoft collaboration and database workloads.
 What does this mean for the data center manager? This power capping capability gives
data center managers the flexibility they need to reduce costs through increased server
and circuit density, as well as the reduction of physical circuits and cabling and power-
related downtime.
 What does this mean for the end user? This power capping capability means back-end
infrastructure energy decisions will not affect end-user application performance, as
tested in our three collaboration workloads and four order-processing workloads.
Figure 5.
Performance
comparison
showing that
adding a power
cap had no
negative impact on
the performance
of the applications
we tested.
0
1
2
3
4
5
6
7
8
9
10
Exchange Server
messages/sec
SharePoint Server
requests /sec
Lync Server
IMs transmitted/sec
Transactions
Performance comparison with capped power
Base
workload
Heavy
workload
Capped
power