HP StorageWorks Enterprise Virtual Array Online Firmware Upgrade Best Practices (5697-6388, January 2007)

A Effec t of online firmware upgrade
on application resiliency
This appendix describes the impact of an online upgrade on various applications.
Testing configuration
The testing consisted of three phases; phase one was used as a baseline, phase t wo included light
application load testing, and phase three included heavy application load testing. The first phase of
testing validated the code upgrade procedure without any application load running. Both loa d tests
consisted running the applications under load while repeatedly performing an online code load of
firmware on the EVA4000.
The servers
used were HP ProLiant servers, with D L380 ser vers as the application servers and DL360
servers for the load simulation clients, storage management, and OS infrastructure duties. Both load test
phases utilized the same server and storage con figuration. See Figure 9.
The layout used for the application and databases during testing is shown in Table 4.
Figure 9 Test configuration
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