Hi Guys,
I have TSM server 5.1.5 and IBM tape library 3494 with 2 tape drives.
I have a problem with the number of migration proccess. Every time I change the 
value to 2, the value will be returned to 1 later.
Could any one help me to solve this Issue?

this is the information of the DISK POOL:
      Storage Pool Name BACKUPPOOL 
      Storage Pool Type PRIMARY 
      Device Class Name DISK 
      Estimated Capacity (MB) 40130.7 
      Pct Util 15.0 
      Pct Migr 15.0 
      Pct Logical 100.0 
      High Mig Pct 60 
      Low Mig Pct 0 
      Migration Processes 2 
      Next Storage Pool AUTOPOOL 
      Maximum Size Threshold - 
      Access READWRITE 
      Description - 
      Overflow Location - 
      Cache Migrated Files? NO 
      Collocate? - 
      Reclamation Threshold - 
      Maximum Scratch Volumes Allowed - 
      Delay Period for Volume Reuse - 
      Migration in Progress? No 
      Amount Migrated (MB) - 
      Elapsed Migration Time (seconds) 20422 
      Reclamation in Progress? - 
      Volume Being Migrated/Reclaimed - 
      Last Update Date/Time 2003-01-29 08:42:26.000000 
      Last Update by (administrator) AZIZ 
      Reclaim Storage Pool - 
      Migration Delay 0 
      Migration Continue YES 
      Storage Pool Data Format Native 
      Copy Storage Pool(s) - 
      Continue Copy on Error? - 
      CRC Data NO 




thanks