NEC Storage Performance Monitor/Optimizer User Manual page 180

Appendix F
This section presents a case study of building a 10-thousand user scale mail-server system using
the NEC Storage series disk devices. The case shows an example of analyzing the causes of
failing in achieving performance capabilities, using the performance monitoring function.
2500
accounts
By converting statistic information history files/summarized files into CSV format files and using
tools like Microsoft Excel2000, graphs shown in the following figure are created (Note 1).
(Note 1)
The disk capacities and RAID configuration of disks are examples for reference. Note that they
does not necessarily indicate actual processing capabilities or feasible RAID configurations.
Appendix F Example of Performance Improvement
Example of Performance
Improvement
2500
accounts
NEC Storage series
51
2500
accounts accounts
2500