HP XP Array Manager Software - Manual (Page 19)

Description Item
list of ports, including the I/O rate or the transfer rate for each port. Here you can specify the
port attributes, and the threshold and upper-limit of the port traffic.
The measurement unit for the values in this list can be selected from the list above this one.
The port traffic (I/O rate and transfer rate) is monitored by Performance Monitor. To specify
the monitoring period, use the Monitoring Term area of Performance Monitor.
The list has these columns:
• Port indicates ports on the storage system.
• Ave. indicates the average I/O rate or the average transfer rate for the specified period.
• Peak indicates the peak I/O rate or the peak transfer rate of the ports for the specified
period. This value equals the top of the Max. line in the detailed port-traffic graph drawn
in the Port-LUN tab of Performance Monitor. For details, see the HP StorageWorks
XP24000/XP20000 Performance Monitor User's Guide.
• Attribute indicates the priority of each port. Prio. indicates a prioritized port. Non-Prio.
indicates a non-prioritized port.
• Use the Threshold columns to specify the threshold for the I/O rate and the transfer rate
for each prioritized port. Either the IOPS or MB/s column in the list is activated depending
on the selection made in the statistics list.
Use the Upper columns to specify the upper limit on the I/O rate and the transfer rate for
each non-prioritized port. Either the IOPS or MB/s column is activated depending on your
choice in the statistics list.
Use the IOPS column to specify the upper-limit for I/O rates. Use the MB/s column to
specify the upper-limit for transfer rates.
To specify an upper-limit, double-click a cell to display the cursor in the cell. If you specify
a value in either the IOPS or MB/s column, the other column becomes unavailable. You
can specify upper-limit values for I/O rates and transfer rates all together for different non-
prioritized ports.
Ports List
If you select this check box and enter a threshold value in the text box, the threshold value is
applied to the entire storage system.
To specify the threshold for the I/O rate, select IOPS from the list to the right of the text box.
To specify the threshold for the transfer rate, select MB/s from the list. For example, if you
specify 128 IOPS in All Thresholds, the upper limits on non-prioritized ports are disabled
when the sum of I/O rates for all the prioritized ports is below 128 IOPS.
Even if you use a different type of rate (IOPS or MB/s) for the threshold than the one used for
the upper limit values, the threshold control will work for all ports.
All thresholds
If you check this check box, XP Performance Control will delete the Performance Control
settings from the SVP.
When a channel adapter is removed, the port and its settings are removed from the
Performance Control window automatically, but the settings remain in the SVP. This may cause
the old settings to be applied to a new channel adapter installed on the same location.
The Delete ports if CHA is removed check box is active only when these Performance Control
settings on ports in a removed channel adapter remain on the SVP:
• The setting of prioritized ports or non-prioritized ports.
• The setting of prioritized WWNs or non-prioritized WWNs.
Delete ports if
CHA is
removed
Applies the settings in this window to the storage system. Apply
Restores the last applied settings in the window. When you click this button, all the changes
displayed in blue text in the window are canceled.
Reset
XP24000/XP20000 Performance Control User's Guide 19