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Do not use a media policy that is associated with this media class if you do not want to append to these volumes.

NotesNOTES:

1.  The default on the SAVxxxBRM commands allows BRMS to append to media.  If you do not want to append, users must change the Sequence number parameter (SEQNBR) from *END to 1.
2.  It is not recommended to append a SAVSYS to another volume. A SAVSYS has to start at sequence 1 in order to recover from the tape volume.
   • NOTE:  BRMS does not prevent users from appending a *SAVSYS to another volume when running DUPMEDBRM.
3. It is not possible to append saves from different systems in a BRMS network to the same volume.  To append to media, the volume must be owned by the system doing the save.
4.  It is not possible to append to media owned by another system.  BRMS selects an active volume with attributes that match those in the appropriate media policy.  
   •  When you select *YES at the Append to media prompt, BRMS takes the following steps to select the volumes to append: 
     • When selecting volumes for media libraries, BRMS determines if the last volume that is used can also be used for the append operation. The media class is the determining factor. When selecting volumes for stand-alone drives, BRMS issues message BRM1472, which nominates suitable candidate volumes.
     • BRMS selects an active volume with attributes that match those in the appropriate media policy. BRMS uses the following to check if the volume is available for appending:
       • Same media class
       • Same storage location
       • Same expiration date
       • Owned by the requesting system
       • Same move policy
       • Same move policy
       • Same secure attribute
     • If BRMS cannot find a volume that meets the criteria above, it selects a volume with an earlier expiration date, starting with the earliest.
     • If BRMS cannot select a volume with an earlier expiration date, it selects an expired volume from the system.
     • If BRMS fails to find a volume up to this point, it will try to select an expired volume from another system.
     • BRMS will never select a volume that has been flagged in error (expiration of volume is *ERR).
5. The above rules also apply for DUPMEDBRM when duplicating media.

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