HP StorageWorks P9000 Performance Advisor Software v5.4 Troubleshooting and FAQs Guide (T1789-96336, April 2012)

How are LDEVs displayed in the LDEV Information table on the Dashboard
screen?
The LDEVs records are displayed in the ascending or descending order based on the LDEV Settings
that you will have specified on the Threshold Settings screen. The ascending or descending order is
decided based on an LDEV’s average read and write response times.
What does the dashboard high watermark indicate?
The high water mark is an indication of the maximum average usage value of that resource in the
past 24 hours. High watermark is displayed after considering the usage data of a resource in the last
24 hours for a selected metric.
NOTE:
The dashboard high watermark is available on the Dashboard screen from P9000 Performance
Advisor v4.5 onwards.
Why is the dashboard high watermark not displayed in the performance graphs
that I plotted on the Dashboard screen, Chart Work Area?
The dashboard high watermark is disabled, if you select multiple resources and plot their performance
graphs for different metrics. The dashboard high watermark is displayed only when you select a single
resource and metric combination.
Why is the dashboard high watermark not displayed for LDEVs?
The dashboard high watermark is not displayed for LDEVs, because there is no option to set the
threshold values for LDEVs on the Threshold Settings screen.
What does X icon beside a resource indicate in the Statistics section on the
Dashboard screen?
The X icon beside a resource in the Statistics section indicates that the utilization of that resource
corresponding to a particular metric is beyond the set threshold limit.
After an upgrade, when I log in to P9000 Performance Advisor, the Dashboard
displays the error message Error getting XP Array Health.
This error is displayed because the performance threshold values are not yet set. For more information
on setting threshold values, see the HP StorageWorks P9000 Performance Advisor Software User
Guide.
From P9000 Performance Advisor v4.6 onwards, default threshold values are already provided for
the following metrics:
• CHA Util (%) – 70%
• Write Pending (%) – 28%
• DKA Util (%) – 70%
• RG Util (%) – 50%
Frequently Asked Questions68