text: (cid:2) Document: With this expiration type, a document at a time is deleted from the application 
  group. Data that is stored in archive storage is deleted by the storage manager based on 
  the archive expiration date. Storing documents with an expiration type of Document 
  causes the expiration process to search through every document in the segment to 
  determine whether the expiration date was reached, which results in long processing 
  times. 
  
  When the**arsmaint**expiration process is run, data is deleted only from the application group if 
  the upper threshold for the size of the cache storage is reached. By default, the cache 
  threshold is 80%. A lower threshold can be forced by the expiration command parameters. 
  Unless a reason exists to clear cache, leaving data in cache improves retrieval performance. 
  
  **5.2.6 Advanced application group storage management**
  
  By using the advanced storage management settings (Figure 5-11), you can adjust the size of 
  the load object and determine when report data, indexes, and resources are migrated to 
  archive storage. 