HP XP Performance Advisor Software - Manual (Page 101)

NOTE:
•
By default, the duration is set to 6 hrs in the Threshold Setting screen.
•
All the charts in the dashboard screen is displayed for 1 hour if the duration selected is
current in the Threshold Setting screen.
•
Ensure that both the host agents and the management station is in sync.
•
Ensure that the system clock time on both the host agents and management station is in
sync.
5. Click Save.
For the selected threshold duration, HP XP7 Performance Advisor does the following:
1. Collects the point in time and the average usage values of the individual components for the
corresponding metrics.
2. Verifies the values for a component with the respective threshold values.
3. Displays the appropriate status icons in the Frontend, Cache, Backend, or the MP Blade category
(applicable
for P9500 and XP7 disk arrays) on the Dashboard screen. Click a status icon
to
view the average usage summary of individual components in that category. For more
information
on Dashboard, see
“Viewing
dashboard” (page 105)
.
If
the threshold limits are not set for a particular category, HP XP7 Performance Advisor does
not
verify the usage summary of components in that category and displays the (Disabled)
status
icon on the Dashboard screen for that category. To view the overall usage status of
the
XP,XP7 disk arrays, and the average usage summary of components, specify the
threshold
limit for at least one metric in the respective category.
The
changes you make on the Threshold Setting screen are immediately reflected on the Dashboard
screen.
By default, HP XP7 Performance Advisor retrieves data for the past six hours from the time
you
saved the threshold settings. It considers the management station time to calculate the threshold
duration.
For example, if the threshold duration is 6 hrs and the current time on your management
station
is 5:00 PM, HP XP7 Performance Advisor considers the usage summary of components for
the
past six hours (11:00 a.m. – 5:00 p.m) to display the overall usage status for the XP ,XP7
disk
array on the Dashboard screen.
Specifying the top 20 consumers
HP XP7 Performance Advisor displays the maximum X busiest consumers or components (default
20) for a port, RAID group, or an MP blade. This data is displayed in the Component Information
section of the Dashboard screen. For more information, see
“Dashboard busiest consumers”
(page 112) .
The following table lists the types of consumers, the factors considered to arrive at the maximum
X busiest consumers, and their sorting order in the Components Information section.
Sorting of consumers
Maximum and least X busiest consumers
based on
Consumer type
The average read and write response time
of LDEVs The average read and write response time
values are considered LDEVs
A consumer can belong to the LDEVs
consumer type if it is associated with a
port or a RAID group
The average MP blade utilization The average MP blade utilization is
considered LDEVs, journal groups, or the E-LUNs
A consumer can belong to the LDEVs,
journal groups, or the E-LUNs consumer
type if it is associated with an MP blade
Configuring dashboard threshold settings 101