HP StorageWorks XP Remote Web Console Software - Manual (Page 24)

24 Performance Control XP
4. Locate the non-prioritized port or WWN.
The Attribute column indicates whether ports or WWNs are prioritized or non-prioritized. If you cannot
find non-prioritized ports or WWNs, check the list at the top right corner of the pane. If it displays
Prioritize, select All or Non-Prioritize from the list.
5. Do either of the following:
• To limit the I/O rate, double-click the desired cell in the IOPS column in Upper, and enter the upper
limit in the cell.
• To limit the transfer rate, double-click the desired cell in the MB/s column (or 100KB/s column for
WWNs) in Upper, and enter the upper limit in the cell.
The upper limit value you entered is shown in blue.
6. Click Apply. The settings in the pane are applied to the disk array. The upper limit value you entered
turns black.
Setting thresholds
If threshold control is used, upper limit control is automatically disabled when traffic between production
servers and the disk array is reduced to a specified level. For details, see ” Automatically disable upper
limit control ” on page 11, and ” Procedure for one-to-one connections between HBAs and ports ” on
page 12 (for one-to-one connections) or ” Procedure for many-to-many connections between HBAs and
ports ” on page 13 (for many-to-many connections).
1. Start Performance Control XP (” Starting Performance Control XP ” on page 18). The Performance
Control pane appears.
2. Click Port (for one-to-one connection) or WWN (for many-to-many connection).
3. Do either of the following:
• To disable the upper limit on I/O rates, select IOPS from the list at the upper-left corner of the table.
• To disable the upper limit on transfer rates, select MB/s (or 100KB/s for WWNs) from the list at the
upper-left corner of the table.
4. To set a threshold for a WWN, skip to step 7 .
5. Do either of the following:
• To set a threshold for a prioritized port, locate the desired prioritized port, which is indicated by
Prio. in the Attribute column. Double-click the cell in the IOPS or MB/s column in Threshold, and
enter the threshold value.
CAUTION: If you enter 0 (zero) in a cell, the cell displays a hyphen (-) and the threshold for the
prioritized port becomes ineffective. If the threshold for any prioritized port is ineffective, threshold
control will not be performed, but upper limit control will be performed.
• To set a threshold to the entire disk array, click the All Thresholds check box, enter the threshold
value in the text box, and select IOPS or MB/s from the list in All Thresholds.
6. Skip to step 10 .
7. Select the All Thresholds check box.
8. Do either of the following:
• To disable the upper limit on I/O rates, select IOPS from the list below the check box.
• To disable the upper limit on transfer rates, select 100KB/s from the list below the check box.
9. Enter the threshold in the text box.
10. Click Apply. The settings in the pane are applied to the disk array.
Changing PFC names of host bus adapters (many-to-many connections only)
Use the Performance Control pane to assign a PFC name to a host bus adapter (HBA). Although you can
identify HBAs by WWNs (Worldwide Names), you can identify HBAs more easily if you assign PFC
names. WWNs are 16-digit hexadecimal numbers and cannot be changed. However, PFC names should
not necessarily be 16-digit hexadecimal numbers and can be changed.