Dell External M620 t Manual de usuario descargar pdf (Pagina 3)

A Principled Technologies test report 3

Server consolidation with the Dell PowerEdge M620

Figure 3 shows the calculated power consumption for each blade, both idle

(though the Dell PowerEdge M620 was supporting VMs) at peak workload. The Dell

PowerEdge M620 server supported 59.5 percent more users per watt than the HP

ProLiant BL460c G6. (Note: We calculated the power each blade server used by

recording the power consumption of one server and the chassis, calculating the power

usage for the chassis and blade server individually. We divided the blade chassis

wattage by the number of servers it holds, 16, to determine the chassis power for an

individual blade. We then added the blade power and 1/16th of the chassis power

together. In that way, we are able to ensure the measurement actually reflects what

one blade and its share of the chassis consumes.)

Power (W)

Users/watt

percentage win

VMs running no workloads

All VMs running workloads

Dell PowerEdge M620

125.6

299.7

26.7

59.5%

HP ProLiant BL460c G6

105.6

119.5

16.7

Figure 3: Power statistics for the two servers.

ACHIEVE PAYBACK IN AS LITTLE AS 19 MONTHS BY CONSOLIDATING

WITH THE DELL POWEREDGE M620

Tests in our labs using the LoadGen benchmark show that one Dell PowerEdge

M620 running Microsoft Exchange Server 2010 can run four of the same 2,000-user

workloads of four existing HP ProLiant BL460c G6 servers running Microsoft Exchange

Server 2007 and still maintain room for growth.

To illustrate the cost savings this consolidation can provide, we calculated the

costs for a hypothetical enterprise planning this migration and compared those costs to

those of retaining the existing servers. We found that, thanks to savings in software and

hardware support, server administration, and data center costs for energy, ports, and

space, the Dell PowerEdge M620 can pay back the investment in hardware and the

migration effort in as little as 19 months. Figure 4 summarizes the three-year total cost

of ownership (TCO) for the two solutions.

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Dell External M620 t Manual de usuario Pagina 3