Offline backup shuting database

Hi,

offline backup in bi server.

all the oracle process are stopped. nothing is running in oracle sid.

ps -ef|grep ora_ showing no process. but it is nit shutting down.

but

alert log showing below message

SMON: disabling cache recovery

Fri Mar 26 12:15:18 2010

Shutting down archive processes

Archiving is disabled

Fri Mar 26 12:15:23 2010

ARCH shutting down

ARC1: Archival stopped

Fri Mar 26 12:15:28 2010

ARCH shutting down

ARC0: Archival stopped

Fri Mar 26 12:16:51 2010

Thread 1 closed at log sequence 11347

Successful close of redo thread 1

Fri Mar 26 12:17:37 2010

Completed: ALTER DATABASE CLOSE NORMAL

Fri Mar 26 12:17:38 2010

ALTER DATABASE DISMOUNT

Completed: ALTER DATABASE DISMOUNT

ARCH: Archival disabled due to shutdown: 1089

Shutting down archive processes

Archiving is disabled

Archive process shutdown avoided: 0 active

ARCH: Archival disabled due to shutdown: 1089

Shutting down archive processes

Archiving is disabled

Archive process shutdown avoided: 0 active

Fri Mar 26 12:22:39 2010

SHUTDOWN: waiting for detached processes to terminate.

kindly help me

kvl