About Communicating With Host Agents; Request Host Agent Updates - HPE XP7 User Manual

About communicating with host agents

You must first install and configure the host agent on the host. To install and configure host agents, refer
the HPE XP7 Performance Advisor Software Installation Guide. PA then displays the host agents in the
Host Information table under the Host Information pane. Hover over the status icon to know the current
status of a host agent. The status is displayed as Requested when you seek an update from the host
agent (for example, when it is reinstalled). The status icon changes to green (when you hover over, it
displays as Received) after PA retrieves the requested information from the host agent. When the host
agents are first installed on the hosts, the current status is displayed as Received.
NOTE: To view updated RMLIB host agent versions and new array types, select the upgraded host
entry and request a host update.

Request host agent updates

Prerequisites
• Ensure that the version of the host agent installed on the host matches with the version of PA installed
on the management station.
• Ensure that the command devices are already created on the arrays connected to your host, and
configured to communicate with the host. If not already created, the corresponding RAID Manager
Library version is not displayed when you request for a host update. In such cases, do the following:
1. Create command devices on the arrays. For more information on creating command devices, refer
to the HPE XP7 Performance Advisor Software Installation Guide.
2. Associate the command device with your host agents.
3. Request an update on your host agents.
Requesting host agent update
1. From the main menu, click Collections.
2. To update the host information, in the Host Information pane, click Request Info.
The Request Info button is enabled only when you select the host agents. Use the Shift 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. PA 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, Request in
progress.. as a tool tip.
b. After PA has retrieved the latest information from the host agent, the Status changes to Received.
c. The latest timestamp is displayed under Updated.
Click Refresh Hosts to manually refresh the Host Information table. The Request Status progress bar
may prolong to update the host information status, in such case, press the F5 key or click the refresh icon
in the PA screen to manually update/refresh the screen.
90 About communicating with host agents