text: **6.1 Working with storage pools**
  
  A managed disk (MDisk) is a logical unit (LU) of physical storage. MDisks are either RAID 
  arrays that are constructed of internal storage disks or flash disk modules, or LUs that are 
  exported from external storage systems. Storage pools act as a container for MDisks by 
  dividing the MDisks into extents. Storage pools provision the available capacity from the 
  extents to volumes. 
  
  Figure 6-1 provides an overview of how storage pools, MDisks, and volumes are related. 