262 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
7.2.2  Creating mirrored volumes
To create a mirrored volume, complete the following steps:
1. In the Create Vo lumes window, click Mirrored and choose the Pool for Copy1 and Copy2 
by using the drop-down menus. Although the mirrored volume can be created in the same 
pool, this setup is not typical. Generally, keep volumes copies on separate set of physical 
disks (Pools).
2. Enter the following Volume Details:
– Quantity
– Capacity
– Capacity savings
–N a m e
Leave the I/O group option at its default setting of Automatic (see Figure 7-14 on 
page 263).
Note: Consider the following points:
/SM590000Fully allocated volumes are automatically formatted through the quick initialization 
process after the volume is created. This process makes fully allocated volumes 
available for use immediately.
/SM590000Quick initialization requires a small amount of I/O to complete, and limits the number of 
volumes that can be initialized at the same time. Some volume actions, such as moving, 
expanding, shrinking, or adding a volume copy, are disabled when the specified volume 
is initializing. Those actions become available after the initialization process completes.
/SM590000The quick initialization process can be disabled in circumstances where it is not 
necessary. For example, if the volume is the target of a Copy Services function, the 
Copy Services operation formats the volume. The quick initialization process can also 
be disabled for performance testing so that the measurements of the raw system 
capabilities can take place without waiting for the process to complete.
For more information, see the Fully allocated volumes topic in IBM Knowledge Center.