onstat -D vs onstat -g iof

Informx gurus: --------------------------- This is a copy of a post that I previously send, however seems that because of the problems with the informix-list not many people had the opportunity to read it. I am sorry if you already read this message. ---------------------------- Could some one explain the output of onstat -D and compare it with the output of onstat -g iof? On my online 7.23 running on AIX 4.2 I get the following for onstat -D:address chk/dbs offset page Rd page Wr pathname .... 400382c8 2 2 1 40261 30340 /dev/RDATA00DB 4003839c 3 3 1 149783 153244 /dev/RDBTEMP 40038618 6 6 1 178835 39579 /dev/RDATA01DB 400386ec 7 7 1 565794 9934 /dev/RDATA02DB .... and the following for onstat -g iof AIO global files: gfd pathname totalops dskread dskwrite io/s .... 4 /dev/RDATA00DB 478833 451086 27747 0.7 5 /dev/RDBTEMP 43791 21032 22759 0.1 8 /dev/RDATA01DB 504761 466093 38668 0.7 9 /dev/RDATA02DB 270739 262590 8149 0.4 .... As you can see, the number of disk operations reported by onstat -g iof do not follow the same pattern as the number of page read/write reported by onstat -D. If I were to trust onstat -D I would conclude that: DBTEMP and DATA02 are the most heavily used chunks. If I were to trust onstat -g iof I would conclude that DATA00 and DATA01 are the most heavily used chunks. Because of table locations I am almost sure that DATA01 is the most heavily used chunk. I am looking for a trustable tool to evaluate the effect of moving tables between DBspaces. Thanks in advance Tino