426 Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1
3. Then, select a volume copy.
4. Open the Actions menu to display the following volume copy actions (Figure 8-63).
Figure 8-63 Volume Copy Actions menu
The following functions are available on the Actions menu:
– Create a volume from this copy
– Split into a new volume (8.5.2, “Splitting into a new volume” on page 428)
– Make primary (8.5.1, “Volume copy: Make Primary” on page 426)
– Validate volume copies (8.5.3, “Validate Volume Copies option” on page 429)
– Delete (8.5.4, “Delete volume copy option” on page 432)
– Modify properties (8.4, “Volume properties and volume copy properties” on page 422)
– Properties (8.4, “Volume properties and volume copy properties” on page 422)
8.5.1 Volume copy: Make Primary
When you look at the volume copies, you can see that one of the copies shows an asterisk (*)
next to its name, as shown in Figure 8-64.
Figure 8-64 Volume copy names
Each volume has a primary and a secondary copy, and the asterisk indicates the primary
copy. The two copies are always synchronized, which means that all writes are destaged to
both copies, but all reads are always performed from the primary copy. The maximum
configurable number of copies per volume is two. The roles of the copies can be changed.
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