Chapter 8. Advanced host and volume administration 425
The following additional volume copy details are available:
– Capacity: Shows the allocated (used) and the virtual (real) capacity. You can hover
your mouse pointer over the pie chart to display information for additional tiers.
– Capacity savings: Shows the method of capacity savings for the volume copy. It can be
None for a generic copy, Compressed, or Thin-provisioned.
– Easy Tier: Indicates the Easy Tier state.
4. To change the volume copy properties for the thin-provisioned or compressed volume
copy type, select a volume copy from the Volumes panel, and click Actions → Modify
Properties. Use the Modify Properties dialog, which is shown in Figure 8-62, to customize
the thin-provisioning values: Warning Threshold and Enable Autoexpand.
Figure 8-62 Modify volume copy properties
5. Modify the values if needed and click OK. After the task completes, check the results of
the operation and click Close to return to the Volumes panel.
8.5 Advanced volume copy functions
In 8.3.1, “Advanced volume functions” on page 405, we described all of the available actions
at a volume level and how to create a second volume copy. In this section, we focus on
volumes that consist of two volume copies and how to apply the concept of two copies for
business continuity and data migration.
To access advanced volume copy functions, complete the following steps:
1. Select the desired volume having multiple copies.
2. Click the twisty (>) to show all the copies.
Mirror synchronization rate: Setting the Mirror Sync Rate to 0% disables
synchronization.
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