HP XP Array Manager Software - Manual (Page 39)

NOTE:
• If the selected HBA is connected to multiple ports, when you select the HBA and the
Delete WWN pop-up menu, a message will appear. This message will ask you to move the
HBA from Monitor to Non-Monitor.
• If the selected HBA is contained in a Performance Control group, a message will appear that
tells you to delete the HBA from the Performance Control group. You cannot change an HBA
which is contained in a Performance Control group from Monitor to Non-Monitor. For details
on how to delete an HBA from a Performance Control group, see “
Deleting an HBA from a
Performance Control Group ” on page 45.
6. Click the OK button for the confirmation message that asks you whether to delete the HBA.
The deleted HBA (WWN) is moved from Monitor to Non-Monitor.
7. Click Apply in the Performance Control window.
The settings on the window are applied to the storage system.
Analyzing Traffic Statistics in the WWN Tab
The traffic statistics reveal the number of I/Os that have been made via ports from HBAs. They also
reveal the amount of data that has been transferred between ports and HBAs. You must analyze the
traffic statistics to determine upper-limit values that should be applied to I/O rates or transfer rates
for low-priority HBAs.
The following is the procedure for using the Performance Control window to analyze traffic statistics.
You can use the Performance Management window to analyze traffic statistics. Performance Monitor
can display a line graph that indicates changes in traffic (for details, see the HP StorageWorks
XP24000/XP20000 Performance Monitor User Guide).
To analyze traffic statistics:
1. Start XP Performance Control (see “ Starting XP Performance Control ” on page 32).
The Performance Control window is displayed.
2. Click the WWN tab ( Figure 4 on page 20).
3. Select All from the list at the top right corner of the window.
4. Do one of the following:
• To analyze I/O rates, select IOPS from the list at the upper left corner.
• To analyze transfer rates, select MB/s from the list at the upper left corner of the list.
5. Below the Subsystem folder in the upper-left tree, select the icon of the port whose traffic statistics
you want to collect.
The list displays traffic statistics (I/O rates or transfer rates) about the HBAs that connect to the
selected port.
The following two types of traffic statistic are shown. Each traffic statistic contains the average
and maximum values.
• Traffic between the HBA and the selected port (shown in Per Port)
• Sum of the traffic between the HBA and all the ports connected to the HBA (shown in WWN
Total)
XP24000/XP20000 Performance Control User Guide 39