text: not set, the default for each storage group is 1. This value must be set for each storage 
  group that requires a value larger than the default of 1. For a single storage group, you 
  must set this parameter if you must retrieve documents from two or more tapes 
  concurrently. 
  
  (cid:2) Set the OAM cataloged procedure parameter**MAXS**(the number of storage groups that the 
  
  storage management cycle processes concurrently) to an appropriate value. If**MAXS**
  increases above 10, the effectiveness of concurrency diminishes and OAM processing 
  can be severely constrained or unsuccessful. If concurrent processing includes OBJECT 
  storage groups that write to tape volumes, you must specify the correct corresponding 
  (global level)**MAXTAPERETRIEVETASKS**and**MAXTAPESTORETASKS**values on the**SETOAM**
  statement. 
  
  (cid:2) If you are using optical platters or tapes, set the tape**DEMOUNTWAITTIME**time parameter 
  
  appropriately. This parameter determines how long OAM leaves a tape volume mounted in 
  anticipation of another retrieval request from that device. 
  
  **Maximum Object Size (MOS)**
  OAM now supports storing object sizes up to 256 MB. Authorized program analysis report 
  (APAR) OA03623 lists the program temporary fix (PTF) that is available for each release of 
  z/OS. To enable support for object sizes up to 256 MB, you must specify the maximum object 
  size by adding MOS =256 to the OAM subsystem definition parameter**INITPARM**in the 
  SYS1.PARMLIB(IEFSSNxx) member. 