HP XP Array Manager Software - Manual (Page 34)

The following table shows the relationship between the thresholds and the upper limits:
Table 1 Relationship between the thresholds of the prioritized WWN and the upper limits of the
non-prioritized WWN
Zero Is Set as the upper-
limit of the Non-prioritized
WWN A Number Other Than Zero Is Set as the upper-
limit of the Non-prioritized WWN
The threshold control of the
prioritized WWN is not ex-
ecuted.
When thresholds are set to multiple prioritized WWNs,
depending on the transfer rate, the following controls
are executed:
• If I/O rate or transfer rate exceeds the threshold of
any prioritized WWN, upper limits of all the non-
prioritized WWNs take effect.
• If I/O rate or transfer rate goes below the threshold
of any prioritized WWN, upper limits of all the non-
prioritized WWNs do not take effect.
Threshold Is set to
the Prioritized
WWN
The specified upper-limit always takes effect.
Threshold Is not set
to the prioritized
WWN
Starting XP Performance Control
To start XP Performance Control, take the following steps.
To start XP Performance Control:
1. Ensure that the Remote Web Console main window is in Modify mode (that is, with the background
color of the pen tip icon
showing light yellow). If the background color is gray , the window
is in View mode, and you must change it to Modify mode by taking the following steps:
a.
Check whether the background color of the lock icon is blue.
If the background color is red , you cannot switch from View mode to Modify mode. Click
the button. When the background color turns blue, you can go to the next step.
b.
Click the (pen tip) icon.
A prompt asks if you want to change the mode.
c. Click OK to close the message.
The background color of the icon changes to light yellow ( ). The mode changes to Modify
mode. The background color of the lock icon becomes red (
).
2. Ensure that the WWN tab or the Port-LUN tab is active in the XP Auto LUN window.
3. Ensure that the Real Time option is cleared.
You cannot start XP Performance Control in real-time mode.
4. Click Performance Control (PFC).
The Performance Control window is displayed.
• Use the Port tab (
Figure 3 on page 18) if a one-to-one connection is established between
HBAs and storage system ports. For details on operations in the Port tab, see
“
Port Tab Operations ” on page 35.
XP Performance Control Operations 34