The DB2 installer detects that DAS "dasusr1" is still active. Stop the DAS and rerun the command again.
停止das服务时又提示未运行
/opt/IBM/db2/V9.1/das/bin/db2admin stop
SQL4410W The DB2 Administration Server is not active.
解决办法：先删除das实例，升级完补丁后重建
/opt/IBM/db2/V9.1/instance/dasdrop
...
/opt/IBM/db2/V9.1/instance/dascrt -u dasusr1
最后，程序升级完成，更新实例
/opt/IBM/db2/V9.1/instance/db2iupdt -u db2fenc1 db2admin
完成升级。