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HP XP P9000 Performance Advisor Software User Manual

Page 47

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4.

Click Request Info. The Request Info button is enabled only when you select the host agents.
Use the Shft or the Ctrl key to select multiple host agent records.

The request is executed in the subsequent data collection cycle. Following is the sequence of
events that occur for the selected host agent:
a.

HP XP P9000 Performance Advisor retrieves the updated information from the host agent.
This may take a few minutes depending on the number of LDEVs that are exposed to the
host agent.

The Status displays as Requested and Request Status displays the message, In
progress...please wait.

b.

After HP XP P9000 Performance Advisor has retrieved the latest information from the host
agent, the Status changes to Received.

c.

The latest time stamp is displayed under Updated.

Click Refresh Hosts to manually refresh the Host Information table. If there are any configuration
changes in the associated XP and the P9000 disk arrays, HP XP P9000 Performance Advisor also
updates these details on the relevant screens. For example, if the updated information is about a
new command device, an additional record for the new command device is also displayed under
the Configuration Collection tab on the Array View screen.

To collect configuration data from a reconfigured XP or P9000 disk array, perform the
above-mentioned steps (see

“Requesting host agent updates” (page 46)

). During the next data

collection cycle, the host collects the configuration data again from the reconfigured XP or P9000
disk array and displays under the Configuration Collection tab on the Array View screen. This
process avoids inconsistencies in the performance data collected for the reconfigured XP or P9000
disk arrays.

Related Topics

“Removing host agent information from HP XP P9000 Performance Advisor” (page 47)

“Collecting configuration data” (page 52)

“Scheduling configuration data collection” (page 54)

“Performance data” (page 59)

“Starting real-time performance data collection” (page 322)

Removing host agent information from HP XP P9000 Performance Advisor

IMPORTANT:

You can remove a host agent record when its status shows as Requested or Received under
Status.

If an XP or a P9000 disk array is connected to two host agents, both of which communicate
with the same management station and one of the host agent record is removed, the
configuration and the performance data for that XP or P9000 disk array is still available in
HP XP P9000 Performance Advisor. This is because, that XP or P9000 disk array is still
connected to the other host agent.

The existing configuration and performance data can be purged for those XP and P9000 disk
arrays that are no longer monitored by HP XP P9000 Performance Advisor.

To remove a host agent record:
1.

Click Monitoring+Array View in the left pane.

The Array View screen appears.

2.

Click the Host Information tab.

3.

Select the host agent records that must be removed from HP XP P9000 Performance Advisor.

Communicating with host agents

47

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