text: **10.6 Expiring data on Content Manager OnDemand for i**
  
  In most circumstances, you must run Disk Storage Management (DSM) and Archived Storage 
  Management (ASM) to expire data from Content Manager OnDemand for i. 
  
  **10.6.1 Content Manager OnDemand expiration**
  
  Disk Storage Management (DSM) is the process for performing Content Manager OnDemand 
  based expiration. DSM performs the following functions: 
  
  (cid:2) Controls the expiration of indexes and data from Content Manager OnDemand (if you do 
  not use storage manager-based expiration). 
  
  (cid:2) Migrates data from cache to the storage manager (if the Migrate Data from Cache option 
  is not set to When data is loaded). 
  
  (cid:2) Expires data from cache if Cache Data is set to Yes. 
  
  If you do not run DSM, your disk storage requirements for Content Manager OnDemand 
  might be higher than expected. The number of objects that are stored in the integrated file 
  system (IFS) might also be higher than necessary, which results in longer save and restore 
  times. 
  
  **Note:**If you have never run DSM, the first execution of the Start Disk Storage Management 
  (**STRDSMOND**) command might last for an extended period. 