Oracle10g RAC 구성된 Linux 서버가 이상합니다.

안녕하세요.
다름이 아니라 현재 운영 중인 DB서버에서 프롬프트 상에서
OS 명령어들( 예를 들어 ls 등 )을 치면 첫번째는 아무런 응답이 없이
프롬프트가 떨어지고 두번째에는 그 명령어를 두 번 수행한 결과가 나옵니다.
(예시)
COMISN1@oracle : /oracle > ls
COMISN1@oracle : /oracle > ls
.Xauthority 1207_cpu_db1_2nd.txt 1207_queue_db1_2nd.txt RDA/ dbmon/ mis_sys.dmp oraInventory/
.Xauthority 1207_cpu_db1_2nd.txt 1207_queue_db1_2nd.txt RDA/ dbmon/ mis_sys.dmp oraInventory/
ls 명령어뿐만 아니라 모든 명령어들이 그런 것 같습니다.
현재 여러 서버에 같은 이미지로 Linux가 설치되어 있고,
DBMS도 같은 버전으로 똑 같이 설치되어 있는데 싱글 DB서버는 아무런
문제가 없고 RAC 로 구성된 DB서버만 그런 것 같습니다.
현재 DB 구성은 다음과 같습니다.
DBMS : Oracle 10g 3 Node RAC(10.2.0.2)
OS : Linux imdbms2 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:00:54 EDT 2005 x86_64 x86_64 x86_64 GNU/Linux( Redhat AS 4.0 U2 )
Filesystem : OCFS2(SAN Shared Disk)
그럼 수고하세요.

그리고 이상한 건 해당 서버의 인스턴스를 내리고 올리면
당분간은 정상적으로 된다는 겁니다.

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Oracle10g RAC 구성된 Linux 서버가 이상합니다.

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