{{category PCクラスタ}}
*iSCSI+OCFS2で高速共有ディスク
　Debian squeezeにおいて、mdadmで構築したRAIDボリュームをiSCSI+OCFS2で共有する設定。
*/etc/ocfs2/cluster.conf
 node:
         ip_port = 7777
         ip_address = 192.168.99.1
         number = 0
         name = blackthunder
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.5
         number = 1
         name = ssi5
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.6
         number = 2
         name = ssi6
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.7
         number = 3
         name = ssi7
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.8
         number = 4
         name = ssi8
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.9
         number = 5
         name = ssi9
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.10
         number = 6
         name = ssi10
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.11
         number = 7
         name = ssi11
         cluster = ocfs2
 
 node:
         ip_port = 7777
         ip_address = 192.168.99.12
         number = 8
         name = ssi12
         cluster = ocfs2
 
 cluster:
         node_count = 8
         name = ocfs2
*/etc/default/iscsitarget
 ISCSITARGET_ENABLE=true
 ISCSITARGET_OPTIONS=""
*/etc/iet/ietd.conf
 Target iqn.hostname:ocfs2
 IncomingUser iscsi password
 OutgoingUser iscsi password
 Lun 0 Path=/dev/md0,Type=fileio
*コマンド
 sudo apt-get install \
 libssl-dev iscsitarget-dkms \
 iscsitarget open-iscsi ocfs2-tools
 sudo nano -w /etc/default/iscsitarget
 #ISCSITARGET_ENABLEをtrueに
 sudo nano -w /etc/iet/ietd.conf
 #変更点は以下
 #IncomingUser username password
 #OutgoingUser username password
 #Target targetname:diskid
 #IncomingUser username password
 #OutgoingUser username password
 #Lun 0 Path=/dev/md0,Type=fileio
 sudo /etc/init.d/iscsitarget start
 sudo nano -w /etc/iscsi/iscsid.conf
 #変更点は以下
 #node.startup = automatic
 #node.session.auth.authmethod = CHAP
 #node.session.auth.username = username
 #node.session.auth.password = password
 #discovery.sendtargets.auth.authmethod = CHAP
 #discovery.sendtargets.auth.username = username
 #discovery.sendtargets.auth.password = password
 sudo /etc/init.d/open-iscsi start
 sudo iscsiadm -m discovery -t st -p localhost
 sudo iscsiadm -m node \
 --targetname targetname:diskid \
 --portal 127.0.0.1 --login
 sudo nano -w /etc/default/o2cb
 #変更点は以下
 #O2CB_ENABLED=true
 #O2CB_BOOTCLUSTER=ocfs2
 sudo cp \
 /usr/share/doc/ocfs2-tools/examples/cluster.conf \
 /etc/ocfs2/
 sudo nano -w /etc/ocfs2/cluster.conf
 sudo /etc/init.d/o2cb start
 sudo fdisk
 n
 p
 1
 (そのままEnter)
 (そのままEnter)
 w
 sudo mkfs.ocfs2 -L OCFS2 /dev/sdg1
 sudo mkdir -p /work
 sudo mount -L OCFS2 /work
 sudo nano -w /etc/fstab
 #変更点は以下
 #LABEL=OCFS2 /work ocfs2 _netdev 0 0