Unformatted text preview: s. Our goal for the latency threshold
was to have the majority of the latencies for the specific run under 1 second. The Dell PowerEdge R710 complied
with this level of acceptability. We broadened the acceptable latency threshold to 1.3 seconds in order to
accommodate the HP ProLiant DL385.
To determine the maximum number of simultaneous virtual machines each solution could handle, we added
virtual machines until one or more had a latency greater than 1.3 seconds. We then subtracted one VM to identify
the total number of VMs the solution could handle. We performed three runs at the total number to verify the
response time met these standards.
Server Total number of virtual machines Dell PowerEdge R710 and Dell EqualLogic storage
HP ProLiant DL385 G5 and HP StorageWorks EVA 4400
8 Figure 3: The total number of virtual machines for the two server-and-storage solutions. Higher numbers are better. Figure 4 shows the latency from the median run for each virtual machine.
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- Fall '11
- Windows Vista, Microsoft Exchange Server, Windows Server 2003, Dell PowerEdge R710