Even if you can find a way to modify the page size I am afraid the answer
to your question would be "no".
TSM DB is having fixed pagesize 4kB. DB2 allows to have variable page size
for different tablespaces.

Zlatko Krastev
IT Consultant




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Subject:        buffer pool page size

Can increasing the database buffer pool size increase the backup and
restore performance of theTSM database. see following:

          Available Space (MB): 164,000
        Assigned Capacity (MB): 162,500
        Maximum Extension (MB): 1,500
        Maximum Reduction (MB): 1,420
             Page Size (bytes): 4,096
******************
            Total Usable Pages: 41,600,000
                    Used Pages: 41,211,591
                      Pct Util: 99.1
                 Max. Pct Util: 99.1
              Physical Volumes: 154
             Buffer Pool Pages: 65,536
         Total Buffer Requests: 1,370,119,337
                Cache Hit Pct.: 98.76
               Cache Wait Pct.: 0.00
           Backup in Progress?: Yes
    Type of Backup In Progress: Incremental
  Incrementals Since Last Full: 3
Changed Since Last Backup (MB): 11.36
            Percentage Changed: 0.01