Set SAS Host QoS

Overview

Configure the bandwidth limit (the maximum performance limit) of the SAS host.

Caution

This function is supported in the ETERNUS DX100 S5/DX200 S5.
This function can be used, irrespective of whether the QoS mode has been enabled or disabled. If the QoS mode has been disabled, the port starts the operation within the configured bandwidth limit after the QoS mode is enabled.

Note

Configure the port bandwidth limit on each port. Refer to the [Set FC Port QoS] function, the [Set iSCSI Port QoS] function, or the [Set SAS Port QoS] function for details.
The host LUN bandwidth limit can be configured in the LU QoS group. Refer to the [Set Host-LU QoS] function for details.

Refer to User Roles and Policies for details on the policies and roles.

Configure the bandwidth limit of the SAS host that is registered in the storage system.

Item	Description
Name	The SAS host name is displayed.
SAS Address	The SAS address of the SAS host is displayed.
Bandwidth Limit	Select the maximum performance in IOPS (throughput value). When not setting the performance limit, select "Unlimited". Refer to the "Host QoS" column in "Bandwidth Limit" for the setting value and the default value. Note The bandwidth limit can be changed using the [Set Host QoS Pattern] function or the "set qos-bandwidth-limit" CLI command. If the value is changed, that value is displayed as an option for this item.

Item

Description

Name

The SAS host name is displayed.

SAS Address

The SAS address of the SAS host is displayed.

Bandwidth Limit

Select the maximum performance in IOPS (throughput value). When not setting the performance limit, select "Unlimited".

Refer to the "Host QoS" column in "Bandwidth Limit" for the setting value and the default value.

Note

The bandwidth limit can be changed using the [Set Host QoS Pattern] function or the "set qos-bandwidth-limit" CLI command. If the value is changed, that value is displayed as an option for this item.

Select the SAS host to configure a bandwidth limit (multiple selections can be made), and click [Set SAS Host QoS] in [Action].
Select the SAS host bandwidth limit, and click the [Set] button.

→ A confirmation screen appears.
Click the [OK] button.

→ The SAS host QoS setting starts.
Click the [Done] button to return to the [SAS Host QoS] screen.