Administrator Guide

6. Click OK.
Force Writes to the Lowest Storage Tier for a Volume
The Import to lowest tier option forces all data written to the volume to the lowest storage tier configured for the volume. This option is
typically used when importing data to a new volume from an external source. New writes to the volume from a host after the import is
complete will follow the Storage Profile for the volume. It is important to change the Storage Profile once the import is complete to avoid
potential performance degradation by writing to the lowest tier of drives.
Prerequisites
The volume must use a standard storage type. The Import to lowest tier option is not available for flash-optimized storage types.
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 Volumes.
The Volumes view is displayed.
3. In the Volumes view, select the volume you want to modify.
4. Click (Edit).
The Edit Volume dialog box opens.
5. Select the Import to lowest tier checkbox.
6. Click OK to close the Edit Volume dialog box.
Configure a Space Consumption Limit for a Volume
Set a space consumption limit to specify the maximum space that can be used on the volume. This option is not available for SCv2000 or
SCv3000 series controllers.
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 Volumes.
The Volumes view is displayed.
3. In the Volumes view, select the volume you want to modify.
4. Click (Edit).
The Edit Volume dialog box opens.
5. Expand Advanced Settings.
6. Configure the Space Consumption Limit options.
a) Select the Space Consumption Limit checkbox.
b) In the field, type the maximum space that can be used on the volume in kilobytes (KB), megabytes (MB), gigabytes (GB), or
terabytes (TB).
7. Cllick OK to close the Edit Volume dialog box..
Configure an OpenVMS Unique Disk ID for a Volume
Configure an OpenVMS unique disk ID to identify the volume to servers running the OpenVMS operating system. You might need to reset
this value when recovering a volume from a snapshot. For example, if you map a volume to a server, create a snapshot, and then mount a
new view volume to the server, the new view volume has a new disk ID. To allow the server to recognize it as the same volume, you must
modify the disk ID to match the original value.
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 Volumes.
The Volumes view is displayed.
3. On the Volumes view, select the volume you want to modify.
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Storage Center Administration