(db2 v9.5 ESE on AIX 6.1)

‘get dbm cfg’ does not show the following 3 config parameters for some reason:

Backup buffer default size (4KB) (BACKBUFSZ) = 1024
Restore buffer default size (4KB) (RESTBUFSZ) = 1024
Query heap size (4KB) (QUERY_HEAP_SZ) = 1000

DB21085I Instance "db2v9q1" uses "64" bits and DB2 code release "SQL09053" with level identifier "06040107".
Informational tokens are "DB2 v9.5.0.3", "s081210", "U823474", and Fix Pack "3a".
Product is installed at "/opt/IBM/db2/V9.5".

on some v9.5 instances it does show and on some not. Does anybody have same problem? Is it a bug?

According to product documentation, Command Reference SC23-5846-01, page 151, these three lines should be displayed. If they are not - report a defect.