Administrator Guide

Creating Threshold Denitions to Recommend Volume Movement
Create a threshold denition to recommend volume movement based on the rate of Storage Center front-end IO, volume latency,
Storage Center controller CPU usage, or percentage of storage used for a Storage Center.
Create a Threshold Denition to Monitor Front-End IO for a Storage Center
When Storage Center front-end IO exceeds the value set for the error threshold, Storage Manager triggers a threshold alert with a
volume movement recommendation.
1. Click the Threshold Alerts view.
2. Click the Denitions tab.
3. Click Create Threshold Denition. The Create Threshold Denition dialog box appears.
4. In the Name eld, type a name for the threshold denition.
5. Congure the threshold denition to monitor Storage Center front-end IO.
a. From the Type drop-down menu, select IO Usage.
b. From the Alert Object Type drop-down menu, select Storage Center.
c. From the Alert Denition drop-down menu, select FE IO/Sec.
6. (Optional) Select the All Objects check box to apply the threshold denition to all Storage Centers
7. Congure the IO per second value that must be exceeded to trigger an error threshold alert with a volume movement
recommendation.
a. In the Error Setting eld, type the rate of IO per second that must be exceeded.
b. Next to the Error Setting eld, in the Iterations before email eld, type the number of times the threshold must be
exceeded to trigger the alert.
8. Select the Recommend Storage Center check box.
9. Congure the other options as needed. These options are described in the online help.
10. When you are nished, click OK.
• If you selected the All Objects check box, the threshold denition is created and the Create Threshold Denition dialog box
closes.
• If you did not select the All Objects check box, the Add Objects dialog box appears.
11. Select the check box for each Storage Center that you want to monitor with the threshold denition, then click Finish. The
Create Threshold Denition dialog box closes.
Create a Threshold Denition to Monitor Latency for a Volume
When latency for a volume exceeds the value set for the error threshold, Storage Manager triggers a threshold alert with a volume
movement recommendation.
1. Click the Threshold Alerts view.
2. Click the Denitions tab.
3. Click Create Threshold Denition. The Create Threshold Denition dialog box appears.
4. In the Name eld, type a name for the threshold denition.
5. Congure the threshold denition to monitor volume latency.
a. From the Type drop-down menu, select IO Usage.
b. From the Alert Object Type drop-down menu, select Volume.
c. From the Alert Denition drop-down menu, select Latency.
6. (Optional) Select the All Objects check box to apply the threshold denition to all volumes.
7. Congure the volume latency value that must be exceeded to trigger a threshold alert with a volume movement
recommendation.
a. In the Error Setting eld, type the volume latency that must be exceeded.
b. Next to the Error Setting eld, in the Iterations before email eld, type the number of times the threshold must be
exceeded to trigger the alert.
8. Select the Recommend Storage Center check box.
9. Congure the other options as needed. These options are described in the online help.
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Storage Center Threshold Alerts