Reclamation problem - tape robot gets full!

>-----Original Message-----
>From:  Lambelet,Rene,VEVEY,FC-SIL/INF. 
>Sent:  Friday, March 27, 1998 5:32 PM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Cc:    'Michael Kaczmarski'; 'David Cannon'
>Subject:       Reclamation problem - tape robot gets full!
>
>Hello,
>
>we need help about reclamation in our tape pool (IBM 3494).
>
>We run ADSM 3.1 on MVS server.
>
>It seems that the reclamation processes do not run logically (we applied the
>patch concerning aggregates):
>
>as you can see below, adsm reclaims tape 3180 by writing on tape 3276, which
>becomes full, then asks for tape 3323 (scratch tape).
>
>   Tape 3323 is almost immediately deleted!! and tape 3510 gets asked
>
>Next reclamation process: adsm reclaims tape 3276 which was just written to!!
>
>This kind of loop continues then. We have recl=67%.
>
>Does anybody experience the same situation?
>
>IBM, is there a bug, will it be corrected in the awaited definitive patch
>concerning the existing error in reclamation (logical spaces)?
>
>Please help, our tape robot is going to be full in a few days!!
>
>
>Actitvity Log 
>-------------
>Date and Time       Message
>                                                                             
>                                                       
>-----------------------------------------------------------------------------
>------------------------------------------------------------------------>-----------------------------------------------------------------------------
>---------------------------------------------------------
>---------------------------------------------------------
>03/27/1998 16:13:52 ANR0984I Process 167 for SPACE RECLAMATION started in the
>BACKGROUND at 16:13:52.
>                                                       
>03/27/1998 16:13:52 ANR1040I Space reclamation started for volume 003068,
>storage pool POOLROBO (process number 167).
>                                                           
>03/27/1998 16:13:52 ANR1044I Removable volume 003068 is required for space
>reclamation.
>                                                          
>03/27/1998 16:13:52 ANR1044I Removable volume 003180 is required for space
>reclamation.
>                                                          
>03/27/1998 16:13:52 ANR1142I Moving data for collocation cluster 1 of 3 on
>volume 003068.
>                                                          
>03/27/1998 16:14:22 ANR1142I Moving data for collocation cluster 2 of 3 on
>volume 003068.
>                                                          
>03/27/1998 16:21:15 ANR1142I Moving data for collocation cluster 3 of 3 on
>volume 003068.
>                                                          
>03/27/1998 16:22:09 ANR5321I End of volume reached for 003180 on device 0180.
>                                                                             
>                                                       
>03/27/1998 16:22:09 ANR5208I Dismounting volume 003180 (updated).
>                                                                             
>                                                       
>03/27/1998 16:22:46 ANR5323I Assigning volume 003276 to SCRTCH.
>                                                                             
>                                                       
>03/27/1998 16:22:51 ANR1340I Scratch volume 003276 is now defined in storage
>pool POOLROBO.
>                                                        
>03/27/1998 16:24:20 ANR5209I Dismounting volume 003068 (read-only access).
>                                                                             
>                                                       
>03/27/1998 16:24:49 ANR0986I Process 167 for SPACE RECLAMATION running in the
>BACKGROUND processed 4972 items for a total of                  1,224,577,237
>bytes with a completion state of SUCCESS at 16:24:49.  
>03/27/1998 16:24:49 ANR1041I Space reclamation ended for volume 003068.
>                                                                             
>                                                       
>03/27/1998 16:24:49 ANR0984I Process 168 for SPACE RECLAMATION started in the
>BACKGROUND at 16:24:49.
>                                                       
>03/27/1998 16:24:49 ANR1040I Space reclamation started for volume 003180,
>storage pool POOLROBO (process number 168).
>                                                           
>03/27/1998 16:24:49 ANR1044I Removable volume 003180 is required for space
>reclamation.
>                                                          
>03/27/1998 16:24:50 ANR1044I Removable volume 003276 is required for space
>reclamation.
>                                                          
>03/27/1998 16:24:50 ANR1142I Moving data for collocation cluster 1 of 3 on
>volume 003180.
>                                                          
>03/27/1998 16:24:54 ANR5220I Deleting CARTRIDGE 003068 from Storage Pool
>POOLROBO.
>                                                            
>03/27/1998 16:24:55 ANR1341I Scratch volume 003068 has been deleted from
>storage pool POOLROBO.
>                                                            
>03/27/1998 16:25:22 ANR1142I Moving data for collocation cluster 2 of 3 on
>volume 003180.
>                                                          
>03/27/1998 16:32:09 ANR1142I Moving data for collocation cluster 3 of 3 on
>volume 003180.
>                                                          
>03/27/1998 16:32:59 ANR5321I End of volume reached for 003276 on device 0181.
>                                                                             
>                                                       
>03/27/1998 16:32:59 ANR5208I Dismounting volume 003276 (updated).
>                                                                             
>                                                       
>03/27/1998 16:33:31 ANR5323I Assigning volume 003323 to SCRTCH.
>                                                                             
>                                                       
>03/27/1998 16:33:31 ANR1340I Scratch volume 003323 is now defined in storage
>pool POOLROBO.
>                                                        
>03/27/1998 16:34:48 ANR5208I Dismounting volume 003323 (updated).
>                                                                             
>                                                       
>03/27/1998 16:34:54 ANR5220I Deleting CARTRIDGE 003323 from Storage Pool
>POOLROBO.
>                                                            
>03/27/1998 16:34:54 ANR1341I Scratch volume 003323 has been deleted from
>storage pool POOLROBO.
>                                                            
>03/27/1998 16:37:10 ANR5321I End of volume reached for 003276 on device 0381.
>                                                                             
>                                                       
>03/27/1998 16:37:10 ANR5208I Dismounting volume 003276 (updated).
>                                                                             
>                                                       
>03/27/1998 16:37:42 ANR5323I Assigning volume 003510 to SCRTCH.
>                                                                             
>                                                       
>03/27/1998 16:37:47 ANR1340I Scratch volume 003510 is now defined in storage
>pool POOLROBO.
>                                                        
>03/27/1998 16:41:08 ANR5209I Dismounting volume 003180 (read-only access).
>                                                                             
>                                                       
>03/27/1998 16:41:38 ANR0986I Process 168 for SPACE RECLAMATION running in the
>BACKGROUND processed 4814 items for a total of                  1,237,096,746
>bytes with a completion state of SUCCESS at 16:41:37.  
>03/27/1998 16:41:38 ANR1041I Space reclamation ended for volume 003180.
>                                                                             
>                                                       
>03/27/1998 16:41:38 ANR0984I Process 169 for SPACE RECLAMATION started in the
>BACKGROUND at 16:41:38.
>                                                       
>03/27/1998 16:41:39 ANR1040I Space reclamation started for volume 003276,
>storage pool POOLROBO (process number 169).
>                                                           
>03/27/1998 16:41:39 ANR1044I Removable volume 003276 is required for space
>reclamation.
>                                                          
>03/27/1998 16:41:39 ANR1044I Removable volume 003510 is required for space
>reclamation.
>                                                          
>03/27/1998 16:41:39 ANR1142I Moving data for collocation cluster 1 of 3 on
>volume 003276.
>                                                          
>03/27/1998 16:41:49 ANR5220I Deleting CARTRIDGE 003180 from Storage Pool
>POOLROBO.
>                                                            
>03/27/1998 16:41:49 ANR1341I Scratch volume 003180 has been deleted from
>storage pool POOLROBO.
>                                                            
>
>
>
>Regards,
>
>René Lambelet - (3543 - *A581 
>Nestec SA - 55, Av. Nestlé - CH-1800 Vevey
>Tél: ++41/21/924'35'43 / Fax: ++41/21/924'45'89
>E-Mail: rene.lambelet AT nestle DOT com
>
>