Payback Period - Dell PowerEdge R810 Manual

Savings category
Hardware support -
Servers and storage arrays
Software costs -
Microsoft Windows Server and Microsoft
SQL Server
Facility costs -
Rack space and port costs
Energy costs -
Power and cooling
Management costs -
Labor for server and storage array
administration
Total
Figure 14: 3-year operating cost savings for Dell PowerEdge R810 solution.

Payback period

Payback category
One-time initial investment (includes server,
storage hardware, and migration costs)
Monthly cost (annual costs divided by 12;
includes hardware support, maintenance and
service contracts, software support
agreements, facility costs, energy costs, and
management costs)
Payback period
Figure 15: Payback calculation for the Dell PowerEdge R810 solution and the 24 HP
ProLiant DL385 solutions.
Servers: Database consolidation on Dell PowerEdge R810 servers
The payback period identifies the point at which we estimate the
operating cost savings equal the acquisition costs and the
acquisition starts to show a cost benefit or profit. In calculating the
estimated payback period, we assume that investment costs occur
at the beginning of the year of the acquisition and annual or 3-year
operating costs spread evenly across the months.
Figure 15 shows the payback calculation for the Dell PowerEdge
R810 solution and the 24 HP ProLiant DL385 solutions.
Costs for 1 Costs for
Dell 24 HP
PowerEdge ProLiant
R810 DL385
solution solutions
$9,660
$20,820
$4,398
$7,746
$22,500 $225,000
$65,124 $372,672
Dell
PowerEdge ProLiant
R810
solution solutions
$94,801
$1,809
($94,801/$8,543=11.1 months)
3-year
savings for
Dell
PowerEdge
R810
solution
$43,848 $34,188
$54,072 $33,252
$14,832 $10,434
$34,920 $27,174
$202,500
$307,548
24 HP
Difference
DL385
$94,801
(HP ProLiant
$0
DL385 is
lower)
$8,543
(Dell
$10,352 PowerEdge
R810 is
lower)
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