text: Figure 2-7 IBM dense expansion drawer 
  
  **2.5.9 Expansion Enclosures**
  
  The following types of Expansion Enclosures are available: 
  
  (cid:2) IBM Storwize V7000 large form factor (LFF) Expansion Enclosure Model 12F 
  (cid:2) IBM Storwize V7000 small form factor (SFF) 24F 
  
  IBM Storwize V7000 Gen2 LFF 12F includes the following components: 
  
  (cid:2) Two expansion canisters 
  (cid:2) 12 Gb SAS ports for control enclosure and Expansion Enclosure attachment 
  (cid:2) A total of 12 slots for 3.5-inch SAS drives 
  (cid:2) 2U, 19-inch rack mount enclosure with AC power supplies 
  
  IBM Storwize V7000 SFF Expansion Enclosure Model 24F includes the following 
  components: 
  
  (cid:2) Two expansion canisters 
  (cid:2) 12 Gb SAS ports for control enclosure and expansion enclosure attachment 
  (cid:2) A total of 24 slots for 2.5-inch SAS drives 
  (cid:2) 2U, 19-inch rack mount enclosure with AC power supplies 