db2audit已经关闭了，为什么还有log不断增长

$ db2 connect to fcsdb1

   Database Connection Information

Database server        = DB2/AIX64 10.1.5

SQL authorization ID   = A3INCG

Local database alias   = FCSDB1

$ db2audit describe

DB2 AUDIT SETTINGS:

Audit active: "FALSE "

Log audit events: "FAILURE"

Log checking events: "FAILURE"

Log object maintenance events: "FAILURE"

Log security maintenance events: "FAILURE"

Log system administrator events: "FAILURE"

Log validate events: "FAILURE"

Log context events: "NONE"

Return SQLCA on audit error: "FALSE "

Audit Data Path: ""

Audit Archive Path: ""

AUD0000I  Operation succeeded.

$ ls -l

total 6661544

-rw-------    1 a3incg   dbadmin  3410686475 Mar 31 12:26 db2audit.db.FCSDB1.log.0

为什么db2audit已经关闭了，还有audit log不断增长???有哪位大神知道为什么？怎么不让log继续增长？