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

The performance of the EVA 4000 is displayed in the following figures, showing the behavior of the array
during the upgrade event. First, the CPU utilization spikes for both controllers during the upgrade. See
Figure 19. The relatively quick return to normal operating levels means that the applications running on
the connected servers are able to weather the event without failure.
Figure 19 Heavy load on EVA , CPU utilization
HP StorageWorks Enterprise Virtual Array online firmware upgrade best practices
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