HP XP Array Manager Software - Manual (Page 85)

• Performance Control Name: XP Performance Control names of the host bus adapters. Use XP Per-
formance Control to assign an XP Performance Control name to each host bus adapter so that you
can easily identify each host bus adapters in the Performance Control windows.
• Nickname: Nickname for the host bus adapters. Use LUN Manager to assign a nickname to each
host bus adapter so that you can easily identify each host bus adapter in the LUN Manager win-
dows.
• Current: Current I/O rate.
• Ave.: Average I/O rate for the specified period.
• Peak: Peak I/O rate of the ports for the specified period. This value is shown in the list when you
select the Subsystem folder in the tree.
If you select a port in the list, click Draw, and select the Detail check box, the detailed graph of
the port I/O rate is drawn. The Peak value means the top of the Max. line in this graph.
• Max.: Maximum I/O rate for the specified period. This value is shown in the list when you select
a port icon or host group icon in the tree.
• Response Time: Time for replying from the port or host bus adapter when I/O accesses are made
from the host to them. The unit is milliseconds. The average response time in the period specified
for Monitoring Term is displayed.
• Attribute: Priority of each port. Prio. indicates a prioritized port. Non-Prio. indicates a non-prioritized
port.
NOTE:
In the list of Port-LUN tab, two types of aliases appear for host bus adapters: XP Performance Control
name and nickname. If you select a port icon in the tree, XP Performance Control names defined by
XP Performance Control appear. If you select a host group icon in the tree, nicknames defined by
LUN Manager appear. HP recommends that you specify the same name for an XP Performance
Control name and a nickname for convenience of host bus adapter management.
Viewing Transfer Rates for Ports
Performance Monitor monitors ports on the storage system and measures transfer rates (that is, the
size of data transferred in one second).
To view transfer rates:
1. Ensure that the Auto LUN window is displayed.
2. Select the Port-LUN tab.
The tree displays a Subsystem folder.
3. Select the Subsystem folder.
The Target folder and the Initiator/External folder are displayed.
4. Select MB/s from the list on the right side of the window.
5. In Monitoring Term, do one of the following:
• To view the transfer rate in real time, you must select the Real Time option, specify the number
of recent collections of statistics which should be displayed in the graph, and then click Apply.
• To view transfer rates for a certain period of time in the last 24 hours, you must select the
From option, change the date and time in the From and To boxes, and then click Apply. Use
the arrow button and the sliders when you change the date and time in the From and To
boxes.
XP24000/XP20000 Performance Monitor User Guide 85