HP XP7 Storage - Manual (Page 210)

Description Item
A list of ports, including the I/O rate or the transfer rate for each port. You can specify the port
attributes, and the threshold and upper limit of the port traffic. Ports table
The measurement unit for the values in the list can be specified by the drop-down list above this
table. 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 table contains these columns:
•
Port indicates ports on the storage system.
• Ave.[IOPS] indicates the average I/O rate or the average transfer rate for the specified
period.
•
Peak[IOPS] indicates the peak I/O rate or the peak transfer rate of the ports for the specified
period. This value means the top of the Max. line in the detailed port-traffic graph drawn in
the Monitor Performance window. For details, see
“Performance Monitor data” (page 25) .
• 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 from the list above.
Use the IOPS column to specify the threshold for I/O rates. Use the MB/s column to specify
the threshold for transfer rates.
To specify a threshold, 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 is unavailable. You can specify
thresholds for I/O rates and transfer rates all together for different prioritized ports.
Even if you use the type of rate for the threshold different from that used for the upper limit
values, the threshold control can work for all ports.
•
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 in the list is activated depending
on the selection from the list above.
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 of the IOPS or MB/s column, the other column is unavailable. You can
specify upper limit values for I/O rates and transfer rates all together for different
non-prioritized ports.
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. All Thresholds
To specify the threshold for the I/O rate, select IOPS from the list on 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 prioritized ports is below 128 IOPS.
Even if you use the different type of rate (IOPS or MB/s) for the threshold as that used for the
upper limit values, the threshold control can work for all ports.
If you check this check box, Performance Control deletes, from SVP, the setting information of
Performance Control on ports in channel adapters that have been removed. Delete ports if CHA
is removed
When a channel adapter is removed, the port and its settings are removed from the Performance
Control main window automatically, but they remain in SVP. This may cause the old setting for
Performance Control to be applied to a different channel adapter than the one newly-installed
on the same location.
The Delete ports if CHA is removed check box is available only when the following Performance
Control settings on ports in a removed channel adapter remains on SVP:
•
The setting of prioritized ports or non-prioritized ports.
•
The setting of prioritized WWNs or non-prioritized WWNs.
Applies the settings in this window to the storage system. Apply
210 Performance Control GUI reference