Export: Release 220.127.116.11.0 - Production on Tue Sep 10 12:18:49 2002
(c) Copyright 2000 Oracle Corporation. All rights reserved.
Connected to: Oracle8i Enterprise Edition Release 18.104.22.168.0 - Production
With the Partitioning option
JServer Release 22.214.171.124.0 - Production
Export done in AR8MSAWIN character set and AR8MSWIN1256 NCHAR character set
About to export the entire database ...
. exporting tablespace definitions
. exporting profiles
. exporting user definitions
. exporting roles
. exporting resource costs
. exporting rollback segment definitions
EXP-00003: no storage definition found for segment(21, 2)
EXP-00000: Export terminated unsuccessfully
How to solve the problem. Because this is my live and production database.