====== HP-UX Cluster Management ======

===== 개념 =====
  - 두개이상의 노드(머신)에 자원을 공유하는 방법이다.

===== 파일경로 =====
  - /etc/cmcluster.conf
  - /etc/cmcluster/*
  - /var/adm/cmcluster/*  
  - /etc/rc.config.d/cmcluster

===== MC/SG(ServiceGuard) =====
  * 부팅시 자동 기동여부 확인하기 <code>
root@soafdb1 /var/adm/cmcluster$ grep AUTOSTART /etc/rc.config.d/cmcluster
AUTOSTART_CMCLD=1
</code>

====  ====
^ 설정이름 ^ 값 ^ 부팅시적용 ^ default ^
| AUTOSTART_CMCLD | 0 | 수동적용 | default |
| AUTOSTART_CMCLD | 1 | 자동적용 |         |

  * 시스템 기동후 Cluster Join 및 Package 기동은 관리자가 해주셔야 합니다.

===== 명령어 =====

==== 실행명령 ====
  - cmruncl
  - cmrunnode
  - cmrunpkg

==== 설정보기 ====
  - cmviewconf
  - cmviewcl <code>
root@soafdb1 /var/adm/cmcluster$ cmviewcl

CLUSTER      STATUS
soafdb       up

  NODE         STATUS       STATE
  soafdb1      up           running

    PACKAGE      STATUS       STATE        AUTO_RUN     NODE
    racpkg1      up           running      enabled      soafdb1

  NODE         STATUS       STATE
  soafdb2      up           running

    PACKAGE      STATUS       STATE        AUTO_RUN     NODE
    racpkg2      up           running      enabled      soafdb2
</code>


==== 종료 ====
  - cluster node 종료 <code>
# cmhaltnode -f
Disabling package switching to all nodes being halted.
Warning:  Do not modify or enable packages until the halt operation is completed.

Halting Package racpkg2.
Warning: Cluster reconfiguration occurred while halting package racpkg2. Package might have halted sucessfully.
Check the syslog and pkg log files for more detailed information.

Halting cluster services on node soafdb2.
..
Successfully halted all nodes specified.
Halt operation complete.
</code>