text: **7.8.3 Creating a thin-provisioned volume**
  
  Example 7-4 shows an example of creating a thin-provisioned volume. This requires the 
  following parameters to be specified: 
  
  **-rsize**
  
  This parameter makes the volume a thin-provisioned volume. If this 
  parameter is missing, the volume is created as fully allocated. 
  
  **-autoexpand**
  
  This parameter specifies that thin-provisioned volume copies 
  automatically expand their real capacities by allocating new extents 
  from their storage pool (optional). 
  
  **-grainsize**
  
  This parameter sets the grain size in kilobytes (KB) for a 
  thin-provisioned volume (optional). 
  
  Example 7-4 Using the command mkvdisk 
  
  IBM_Storwize:ITSO:superuser>mkvdisk -mdiskgrp Pool0 -iogrp 0 -vtype striped -size 10 -unit 
  gb -rsize 50% -autoexpand -grainsize 256 
  Virtual Disk, id [9], successfully created 