Setting a – HP XP7 Storage User Manual

Page 63

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3.

Click

to change to Modify mode.

4.

In the Performance Control window, click Performance Control. The Performance Control main
window appears.

5.

Ensure that the WWN tab is displayed.

6.

Do one of the following:

To limit the I/O rate of the non-prioritized WWN, select IOPS from the list at the upper
left corner.

To limit the transfer rate of the non-prioritized WWN, select MB/s from the list at the
upper left corner.

7.

In the upper-left tree, click the icon of the port whose traffic you want to limit below the Storage
System folder.

The information about the host adapters which connect to the selected port is displayed in the
list.

8.

Locate the non-prioritized WWN in the list.

NOTE:

The Attribute column of the list indicates whether WWNs are prioritized or non-prioritized.
The Attribute column of a non-prioritized WWN displays Non-Prio.

If you cannot find any non-prioritized WWN in the list, check the list at the top right
corner of the window. If the list displays Prioritize, select All or Non-Prioritize.

9.

Do one of the following:

To limit the I/O rate of the non-prioritized WWN, double-click the desired cell in the IOPS
column in Upper. Next, enter the upper limit value in the cell.

To limit the transfer rate of the non-prioritized WWN, double-click the desired cell in the
MB/s column in Upper. Next, enter the upper limit value in the cell.

In the list, either of the IOPS cells or MB/s cells are activated depending on the rate you
specified in step 5. You can specify the limit value by using either of the I/O rate or
transfer rate for each host adapter. The upper limit value that you entered is displayed
in blue. It is allowed that you specify upper limit values by using the I/O rate for some
host adapters and specify them by using the transfer rate for the other host adapters.

NOTE:

If one host adapter is connected to multiple ports and you specify an upper limit
value of the host adapter for one port, the specified upper limit value will be applied
to the host adapter settings for other connected ports automatically.

10. Click Apply to apply the settings to the storage system.

The upper limit value that you entered turns black.

Related topics

“Performance Control workflow: many-to-many connections” (page 57)

“Performance Control window” (page 208)

Setting a threshold for the entire storage system: many-to-many connections

If threshold control is used, upper limit control is automatically disabled when traffic between
production servers and the storage system is reduced to a specified level. For details, see

“Upper-limit

control” (page 44)

and

“Performance Control workflow: many-to-many connections” (page 57)

.

Implementing Performance Control: many-to-many connections

63

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