Administrator Guide

Table Of Contents
Create a QoS Profile
QoS profiles include a set of attributes that control the QoS behavior for any volume to which it is applied.
Prerequisites
To enable users to set QoS profiles for a Storage Center, the Allow QoS Profile Selection option must be selected on the
Storage Center Preferences settings.
To enable QoS profiles to be enforced, the QoS Limits Enabled and Server Load Equalizer Enabled options must be
selected on the Storage Center Storage settings.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2.
From the
STORAGE menu, click Profiles.
The Profiles view is displayed.
3. In the Profiles view, click QoS Profiles.
4. In the Qos Profiles area, select the type of profile to create.
Volume
Group
5. Click
(New).
The New QoS Profile dialog box opens.
6. Configure the QoS profile.
a. In the Name field, type a name for the QoS profile.
b. (Optional for volume QoS profiles only) In the Relative Priority field, select the priority of profile in relation to other
QoS profiles. To specify a custom relative priority, select Custom and type a number in the Priority Value field.
c. (Optional for volume QoS profiles only) Select Enable Latency Threshold Alert, then type a latency threshold alert
value is ms.
d. (Optional) Select Limit by IOPS, then type a value for the maximum IOPS allowed.
e. (Optional) Select Limit by Bandwidth, then type a value for the maximum MB/sec allowed.
7. Click OK.
Edit a QoS Profile
Modify the QoS profile to change the attributes that control the QoS for any volume or group to which it is applied.
Steps
1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of
Unisphere Central.
2. From the
STORAGE menu, click Profiles.
The Profiles view is displayed.
3. In the Profiles view, click Qos Profiles.
4. In the QoS Profile section select the QoS profile you want to modify.
5. Click (Edit).
The Edit QoS Profile dialog box opens.
6. Where allowed, modify the values. The profile type field cannot be modified.
7. Click OK.
96
Storage Center Administration