Administrator Guide

Moving a Volume Based on a Recommendation
If the volume movement recommendation was triggered by a threshold denition that monitors volume latency, automatically move the
volume by creating a Live Volume or Live Migration. If the recommendation was triggered by a threshold denition that monitors Storage
Center front-end IO, Storage Center controller CPU usage, or the percentage of storage used for a Storage Center, move the volume(s)
manually.
1 Click the Threshold Alerts view.
2 Click the Alerts tab.
3 In the Current Threshold Alerts pane, locate the threshold alert that contains the volume movement recommendation. Alerts that
contain recommendations display
Yes in the Recommend column.
4 Right-click the threshold alert, then select Recommend Storage Center. The Recommend Storage Center dialog box opens.
• If the recommendation was triggered by a threshold denition that monitors volume latency, the dialog box displays a Storage
Center recommendation and allows you to move the volume by creating a Live Volume or Live Migration. If Storage Manager
identied a possible reason for the increased volume latency, the reason is displayed in the Recommend Reason eld
• If the recommendation was triggered by a threshold denition that monitors Storage Center front-end IO, Storage Center
controller CPU usage, or the percentage of storage used for a Storage Center, the dialog box displays a recommended Storage
Center without suggesting specic volumes to move.
To act on the recommendation, record the Storage Center names displayed in the Current Storage Center and Recommended
Storage Center elds.
Automatically Create a Live Volume and Move the Volume Based on a
Recommendation
Use the Recommend Storage Center dialog box to automatically move a volume based on a recommendation.
About this task
NOTE
: The option to create a Live Volume appears only for Storage Centers running version 7.0 or earlier.
Steps
1 In the Recommend Storage Center dialog box, click Convert to a Live Volume to move to recommended Storage Center. The
Convert to Live Volume dialog box opens.
2 Map the destination volume to the server that is currently mapped to the volume.
a Next to Server, click Change. The Select Server dialog box opens.
b Select the server that is currently mapped to the original volume, then click OK.
3 Modify the other Live Volume options as necessary. These options are described in the online help.
4 When you are done, click Finish. The Live Volume is created and you return to the Alerts tab on the Threshold Alerts view.
5 After the Live Volume is synchronized, swap roles to make the recommended Storage Center the primary for the Live Volume.
a Click the Replications & Live Volumes view, then click the Live Volumes tab.
b Wait until the Live Volume is synchronized, then select the Live Volume and click Swap Primary Storage Center of Live Volume.
A conrmation dialog box opens.
c Click OK to conrm the swap.
6 If you decide that you want to make the recommended Storage Center the permanent host for the volume, delete the Live Volume
and select the
Recycle Secondary Volume check box to recycle the secondary volume (original volume).
a Select the Live Volume and click Delete. The Delete Objects dialog box opens.
b Clear the Convert to Replication check box.
c Select the Recycle Secondary Volume check box.
d Click OK.
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Storage Center Threshold Alerts