text: **11.6.8 Metro Mirror attributes**
  
  The Metro Mirror function in IBM Spectrum Virtualize possesses the following attributes: 
  
  (cid:2) A partnership is created between two IBM Spectrum Virtualize systems operating in the 
  replication layer (for intercluster Metro Mirror). 
  
  (cid:2) A Metro Mirror relationship is created between two volumes of the same size. 
  
  (cid:2) To manage multiple Metro Mirror relationships as one entity, relationships can be made 
  
  part of a Metro Mirror Consistency Group, which ensures data consistency across multiple 
  Metro Mirror relationships and provides ease of management. 
  
  (cid:2) When a Metro Mirror relationship is started and when the background copy completes, the 
  relationship becomes consistent and synchronized. 
  
  (cid:2) After the relationship is synchronized, the auxiliary volume holds a copy of the production 
  data at the primary, which can be used for DR. 
  
  (cid:2) The auxiliary volume is in read-only mode when relationship is active. 
  
  (cid:2) To access the auxiliary volume, the Metro Mirror relationship must be stopped with the 
  access option enabled before write I/O is allowed to the auxiliary. 
  
  (cid:2) The remote host server is mapped to the auxiliary volume, and the disk is available for I/O. 