Release Notes

44 Analyzing Dell PS Series Storage with SAN Headquarters | TR1050
3.4 Example 4: Benchmark of Exchange
This example is from a Microsoft Exchange Solution Review Program (ESRP). From an analysis perspective, we want to
see how well the PS Series array handles a large mailbox configuration. This test typically pushes the limits of the
resources to show maximum efficiencies for the underlying solution.
The Combined Graphs show very distinct I/O patterns. One part of the I/O is significantly lower than the other. Latency
also appears very high for most of the sample.
Figure 29 Initial view of the complete ESRP as shown in SAN HQ
However, from what is known about the ESRP mailbox rating is that the first part of the test and is the actual
application execution. The second part of this sample is showing IOPS during the database cleanup and is not part of
the ESRP certification criteria.
Focus on the relevant sample periods to be sure context is understood while reviewing the SAN HQ data. For the
purpose of this example, the time sample is selected to show only the actual ESRP workload test. This is accomplished
by shrinking the time range bar to include only the 9:00 AM to 11:00 AM period.
DB Cleanup
Actual ESRP