基於heartbeat的NFS HA實現 (轉)

基於heartbeat的NFS HA實現 (轉)[@more@]

基於heartbeat的NFS HA實現

Version: 1.0
Maintainer: hutuworm
Update: -09-30

※說明

  本系統由兩臺Dell PowerEdge 2650（HUTUNFS1 & HUTUNFS2）和一臺陣列組成，磁碟陣列
劃分為ld0 & ld1兩個RAID5邏輯盤（Logical Disk）。為 7.3 。設定NFS HA
的目的是，當HUTUNFS1失敗時HUTUNFS2自動接管。

1 heartbeat 1.0.3 for RedHat 7.3
  /heartbeat/1.0.3/redhat_7.3/">
  heartbeat-1.0.3-1.rh.7.3.1.i386.rpm
  heartbeat-ldirectord-1.0.3-1.rh.7.3.1.i386.rpm
  heartbeat-pils-1.0.3-1.rh.7.3.1.i386.rpm
  heartbeat-stonith-1.0.3-1.rh.7.3.1.i386.rpm 

2 設定:
  HUTUNFS1為master，HUTUNFS2為slave。
 
2.1 HUTUNFS1  192.168.0.30
  /etc/ha.d/ha.cf
  # define nodes in cluster
  node hutunfs1
  node hutunfs2
  # time a system must be unreachable before consred dead (seconds)
  deadtime 5
  # set up for the serial heartbeat pulse
  # 如果兩臺之間用心跳線連線，heartbeat支援心跳監測。
  #serial /dev/ttyS0
  #baud 19200
  # interface to run thework heartbeat pulse
  udp bond0

  /etc/ha.d/authkeys
  auth 3
  3 md5 hutuworm

  /etc/ha.d/hares
  hutunfs1 192.168.0.30 Filesystem::/dev/sdc1::/ld0::ext3 nfslock nfs
  hutunfs1 192.168.0.30 Filesystem::/dev/sdd1::/ld1::ext3 nfslock nfs

  /etc/exports
  #
  # Export the shared disk, allowing read/write access and
  # synchronous I/O with no write delay.
  /ld0 192.168.0.*(rw,sync,no_wdelay)
  /ld1 192.168.0.*(rw,sync,no_wdelay)

  /etc/hosts
  # Do not remove the following line, or various programs
  # that require network functionality will fail.
  127.0.0.1  hutunfs1 localhost.localain localhost
  192.168.0.30 hutunfs1
  192.168.0.31 hutunfs2

2.2 HUTUNFS2  192.168.0.31
  /etc/ha.d/ha.cf
  /etc/ha.d/authkeys
  /etc/ha.d/haresources
  /etc/exports
  以上四個檔案與HUTUNFS1相同

  /etc/hosts
  # Do not remove the following line, or various programs
  # that require network functionality will fail.
  127.0.0.1  hutunfs2 localhost.localdomain localhost
  192.168.0.30  hutunfs1
  192.168.0.31  hutunfs2

3. 在HUTUNFS1 & HUTUNFS2上執行ntsysv，確認nfs服務關閉，heartbeat服務開啟。
  先重起HUTUNFS1，再重起HUTUNFS2，HUTUNFS1作為master執行，HUTUNFS2作為slave執行。
  當HUTUNFS1失效時，HUTUNFS2將自動接管192.168.0.30，並同時開啟NFS服務。