HP StorageWorks P9000 Performance Advisor Software v5.3 User and Troubleshooting Guide (T1789-96322, August 2011)

IMPORTANT:
The following are important notes on the real-time performance data collection:
• You can configure only one instance of the real-time performance data collection for an XP or a
P9000 disk array through the connected host agent. You cannot use the same host agent for an-
other real-time performance data collection until the current collection stops. However, if an XP
or a P9000 disk array is connected to two host agents, configure separate real-time data collection
through each of the host agents.
• The real-time performance data cannot be collected for a combination of components, such as
LDEVs and RAID groups that belong to the same XP or P9000 disk array. Also, the real-time data
cannot be collected for similar components, such as LDEVs or RAID groups that belong to multiple
XP and P9000 disk arrays.
• At a time, ensure that only one instance of P9000 Performance Advisor collects the real-time
performance data from an XP or a P9000 disk array through the respective host agent.
• The real-time performance graphs are not displayed for the LDEVs and the RAID groups that are
currently not processing any I/O requests (described as unused components).
• The external RAID groups and VVols are not displayed for an XP or a P9000 disk array. Further,
only the first RAID group from a concatenated RAID group is displayed for your selection.
• The real-time charting feature is not supported for a Red Hat Enterprise Linux IA-64 host agent.
So, even if a Red Hat Enterprise Linux IA-64 host agent is listed in the Host Agents list, do not
select it for real-time charting purposes.
To start a real-time data collection:
1. Click RealTimeChart in the left pane.
The RealTimeChart screen appears. The list of XP and P9000 disk arrays monitored by P9000
Performance Advisor are displayed in the Select Components list under Start Collection tab.
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