Cleanup Menu & Joblogs

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Guys,

Is there anyone with same experience?  I found out last Friday that all my 
joblogs were cleared from the system so only joblogs on the system is from 
12/01/2001.  I always thought that if I set the cleanup for 7 days all joblogs 
less than 7 days old will remain on the system.  Please educate me on CLEANUP 
menu.
The following is my CLEANUP configuration.

Allow automatic cleanup . . . . . . . . . . . . Y Y=Yes, N=No

Time cleanup starts each day . . . . . . . 02:00:00 00:00:00-

                                                    23:59:59,

                                                    *SCDPWROFF,

                                                    *NONE

Number of days to keep:

User messages . . . . . . . . . . . . . . . . . 7 1-366, *KEEP

System and workstation messages . . . . . . . . 4 1-366, *KEEP

Job logs and other system output . . . . . . . 7 1-366, *KEEP

System journals and system logs . . . . . . . . 60 1-366, *KEEP

OfficeVision for AS/400 calendar items . . . . 30 1-366, *KEEP

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