We are testing TSM 6.1.2.1 under AIX 5.3-09-02.
I have found that "BACKUP DATABASE DEVCLASS=DBB TYPE='Incremental' 
VOLUMENAMES=' db151209.dbv'" produces 2 files in directory:
-rw-------    1 tsm      tsm       419537593 Dec 15 13:09 db151209.dbv
-rw-------    1 tsm      tsm       453116604 Dec 15 13:09 60871748.dbv
It looks we have two sequential incremental backups. Am I right? What is the 
second file?
For TYPE='Full' TSM produces only one file.
Device class DBB is:
tsm: BKME>q devc dbb f=d
               Device Class Name: DBB
         Device Access Strategy: Sequential
               Storage Pool Count: 0
                         Device Type: FILE
                                 Format: DRIVE
          Est/Max Capacity (MB): 8,192.0
                          Mount Limit: 20
                  Mount Wait (min):
           Mount Retention (min):
                          Label Prefix:
                                 Library:
                              Directory: /DBB
                         Server Name:
                         Retry Period:
                        Retry Interval:
                                 Shared:
                 High-level Address:
                Minimum Capacity:
                                WORM: No
                   Drive Encryption:
                     Scaled Capacity:
Last Update by (administrator): SA25577
           Last Update Date/Time: 05/11/09   11:47:04


Grigori G. Solonovitch

Senior Technical Architect

Information Technology  Bank of Kuwait and Middle East  http://www.bkme.com

Phone: (+965) 2231-2274  Mobile: (+965) 99798073  E-Mail: G.Solonovitch AT bkme 
DOT com<mailto:G.Solonovitch AT bkme DOT com>

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