Set LU QoS Pattern
Overview
This function sets the QoS patterns of the host LUN.
The maximum bandwidth limit of the host LUN can be changed by setting a host LUN QoS pattern.
If the Automated QoS function of ETERNUS SF Storage Cruiser is used, set the IOPS and throughput values that correspond to the bandwidth limit (No.1 to No.15) in descending order. If values are not in descending order, the Automated QoS function may not operate as expected.
This function can be used, irrespective of whether the QoS mode has been enabled or disabled.
The LU QoS patterns set with this function are applied to the options of the LU QoS group bandwidth limit. Refer to the [Add LU QoS Group] function or the [Modify LU QoS Group] function for details.
- The following QoS patterns can be set.
Use the [Set Host QoS Pattern] function to set the host QoS patterns.
Use the [Set Port QoS Pattern] function to set the port QoS patterns.
Use the [Set Volume QoS Pattern] function to set the volume QoS patterns.
The bandwidth limit can also be changed with the "set qos-bandwidth-limit" CLI command. If the bandwidth limit is changed by using CLI, that value is also applied to the bandwidth limit that is specified with Web GUI.
User Privileges
Availability of Executions in the Default Role
| Default role | Availability of executions |
|---|---|
| Monitor | |
| Admin | |
| StorageAdmin | |
| AccountAdmin | |
| SecurityAdmin | |
| Maintainer |
Refer to User Roles and Policies for details on the policies and roles.
Settings
QoS Pattern Settings
| Item | Description | Setting values |
|---|---|---|
No. |
The pattern number (0 to 15) of the host LUN QoS is displayed. |
|
IOPS |
Enter the maximum performance (IOPS). Note that "No.0" (Unlimited) cannot be changed. The current value is displayed when this function starts. |
No.0 "Unlimited" No.1 - No.15 60 - 4294967295 Refer to the "LUN QoS" column in "Bandwidth Limit" for the default value. |
Throughput (MB/s) |
Enter the maximum performance (throughput value). Note that "No.0" (Unlimited) cannot be changed. The current value is displayed when this function starts. |
No.0 "Unlimited" No.1 - No.15 1 - 2097151 Refer to the "LUN QoS" column in "Bandwidth Limit" for the default value. |
Operating Procedures
Click [Set LU QoS Pattern] in [Action].
Specify parameters, and click the [Set] button.
→ A confirmation screen appears.
NoteThe QoS patterns (No.1 to No.15) can be reset to the default value. Click the [Default] button to display the default value and click the [Set] button. Refer to the "LUN QoS" column in "Bandwidth Limit" for the settings content. Note that initializing a specific QoS pattern is not available.
Click the [OK] button.
→ The LU QoS pattern setting starts.
Click the [Done] button to return to the [Host-LU QoS] screen.